US5444113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End use applications of biodegradable polymers
Assignee: Ecopol LLC
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Filing: 1993-09-29
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Granted: 1995-08-22
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Expires: 2013-09-29
Abstract
Abstract Disclosed are products made of degradable materials which include a hydrolytically degradable polymer. The degradable materials can be internally or externally modified. The internally modified polymer composition has polymers modified by the use of comonomers having a relatively high molecular weight. The externally modified polymer composition includes a modifier, wherein the modifier is compatible with the polymer and the modifier is nontoxic, nonvolatile and nonfugitive. The various degradable materials include films, fibers, extruded and molded products, laminates, foams, powders, nonwovens, adhesives and coatings. The disclosed materials are particularly useful for the production of a variety of products in high volumes which are suitable for recycling after use or which are discarded into the environment in large volumes.
Inventors
- 👤 Richard G. Sinclair
- 👤 Edward S. Lipinsky
- 👤 James D. Browning
- 👤 Donald Bigg
- 👤 Thomas A. Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:51
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/26; A61L15/42; A61L15/62; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08L; C08L101/00; C08L53/00; C08L57/00; C08L67/00; C08L67/04; C09; C09D; C09D167/00; C09D167/04; C09J; C09J167/00; C09J167/04; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/53; B; B01; B01J; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1942; C08J2367/00; C08J2367/04; C08L2666/00; C08L2666/28
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
123 words
An adhesive product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR17## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 2
Dependent Claim
123 words
An adhesive product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR17## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 3
Dependent Claim
13 words
The adhesive product of claim 1, wherein said degradable polymer comprises polylactic acid.
Claim 4
Dependent Claim
25 words
The adhesive product of claim 1, wherein said degradable polymer comprises at least about 50 weight percent repeating units derived from lactic acid or lactide.
Claim 5
Dependent Claim
286 words
An adhesive product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR18## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR19## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 6
Dependent Claim
286 words
An adhesive product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR18## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR19## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 7
Dependent Claim
18 words
The adhesive product of claim 4, wherein said first repeating units are derived from lactic acid or lactide.
Claim 8
Dependent Claim
123 words
A flammable product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR20## wherein X is the same or different and is O or NR4 with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 9
Dependent Claim
123 words
A flammable product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR20## wherein X is the same or different and is O or NR4 with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 10
Dependent Claim
286 words
A flammable product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR21## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR22## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 11
Dependent Claim
286 words
A flammable product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR21## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR22## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 12
Dependent Claim
130 words
A packaging product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR23## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, where n 1 is 1 or 2 and where n 2 and n 3 can be the same or different and are an integer of from 1-12.
Claim 13
Dependent Claim
130 words
A packaging product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR23## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, where n 1 is 1 or 2 and where n 2 and n 3 can be the same or different and are an integer of from 1-12.
Claim 14
Dependent Claim
286 words
A packaging product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR24## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 2 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR25## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 15
Dependent Claim
286 words
A packaging product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR24## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 2 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR25## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 16
Dependent Claim
122 words
A clothing product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR26## wherein X is the same or different and is O or NR' with R' being the same or different and being hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 17
Dependent Claim
122 words
A clothing product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR26## wherein X is the same or different and is O or NR' with R' being the same or different and being hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 18
Dependent Claim
286 words
A clothing product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR27## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR28## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 19
Dependent Claim
286 words
A clothing product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR27## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR28## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 20
Dependent Claim
123 words
A garden product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR29## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 21
Dependent Claim
123 words
A garden product comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR29## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 22
Dependent Claim
286 words
A garden product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR30## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR31## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 23
Dependent Claim
286 words
A garden product comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR30## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR31## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 24
Dependent Claim
122 words
A filter comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR32## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 25
Dependent Claim
122 words
A filter comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR32## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 26
Dependent Claim
285 words
A filter comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR33## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR34## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 27
Dependent Claim
285 words
A filter comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR33## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR34## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 28
Dependent Claim
122 words
A bag comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR35## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 29
Dependent Claim
122 words
A bag comprising a hydrolytically degradable polymer and a modifier, wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR35## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 30
Dependent Claim
285 words
A bag comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR36## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR37## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 31
Dependent Claim
285 words
A bag comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR36## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR37## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 32
Dependent Claim
129 words
A container comprising a hydrolytically degradable polymer and a modifier wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR38## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, where n 1 is 1 or 2 and where n 2 and n 3 can be the same or different and are an integer of from 1-12.
Claim 33
Dependent Claim
129 words
A container comprising a hydrolytically degradable polymer and a modifier wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR38## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, where n 1 is 1 or 2 and where n 2 and n 3 can be the same or different and are an integer of from 1-12.
Claim 34
Dependent Claim
285 words
A container comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR39## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR40## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 35
Dependent Claim
285 words
A container comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR39## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR40## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 36
Dependent Claim
122 words
A coating comprising a hydrolytically degradable polymer and a modifier wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR41## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 37
Dependent Claim
122 words
A coating comprising a hydrolytically degradable polymer and a modifier wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR41## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 38
Dependent Claim
285 words
A coating comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR42## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR43## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 39
Dependent Claim
285 words
A coating comprising a hydrolytically degradable polymer, said polymer comprising: (a) a backbone chain; (b) first repeating units of the formula ##STR42## where, independently for each such first repeating unit: X 1 and X 2 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 1 , R 2 and Z 1 combined have at most one carbon atom; R 3 , R 4 and Z 2 combined have at most one carbon atom; Z 1 and Z 2 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 1 and Z 2 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain; and the molecular weight of such a first repeating unit is less than about 145; and (c) from about 1 weight percent to about 50 weight percent, based on the total weight of said polymer, of second repeating units of the formula ##STR43## where, independently for each such second repeating unit: X 3 and X 4 are independently O or NR' and R' is independently H, hydrocarbyl, substituted hydrocarbyl or a hydrocarbyl derivative; R 5 , R 6 , R 7 and R 8 combined have at least four carbon atoms; Z 3 and Z 4 are each independently one or more constituent group extending from the backbone chain and being covalently bonded to an associated carbon atom in the backbone chain, at least one of Z 3 and Z 4 being oxygen which forms a carbonyl group with the associated carbon atom in the backbone chain.
Claim 40
Dependent Claim
153 words
A substrate suitable for the growth of cells, said substrate selected from the group consisting of injection-molded material types, fibers, extruded and molded material types, laminates, foams, powders and caotings, wherein said substrate comprises a hydrolytically degradable polymer and a modifier wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR44## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
Claim 41
Dependent Claim
153 words
A substrate suitable for the growth of cells, said substrate selected from the group consisting of injection-molded material types, fibers, extruded and molded material types, laminates, foams, powders and caotings, wherein said substrate comprises a hydrolytically degradable polymer and a modifier wherein said modifier is compatible with said polymer and is non-volatile and non-fugitive and wherein said polymer comprises repeating monomer or comonomer units selected from the group consisting of: ##STR44## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-21 | 1999-02-20 | 1999-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-21 | 2003-02-20 | 2003-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-21 | 2007-02-20 | 2007-08-22 | $7700.00 | Window Closed / Lapsed |