Patent US4622368A successfully refreshed from Google Patents.
US4622368A
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Plasticized polyetherimide blends
Assignee: General Electric Co
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Filing: 1985-05-13
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Granted: 1986-11-11
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Expires: 2005-05-13
Abstract
Abstract This invention is concerned with a method for plasticizing polyetherimide polymers with a reactive bisimide plasticizer. This invention also provides novel plasticized polyetherimide blends and rigid polyetherimide blends which are obtained by polymerizing the reactive bisimide plasticizer to form an interpenetrating matrix polymer. The plasticized blends exhibit melt viscosities and glass transition temperatures lower than those associated with the polyetherimide component of the blends. The rigid blends exhibit higher dimensional stability than polyetherimides. The blends produced are suitable for the manufacture of filaments, composites, fibers, films, molding compounds, coatings, etc.
Inventors
- 👤 John W. Verbicky, Jr.
- 👤 Elbridge A. O'Neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:38
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; C08F; C08F283/00; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
179 words
A method for plasticizing polyetherimide resin comprising: (a) adding to said polyetherimide resin an N-unsaturated alkyl bisimide of the formula, ##STR14## wherein n is a number having a value of from 0-3, m is equal to 0 or 1, R is a divalent aromatic radical of from 6-30 carbon atoms, A is of the formula ##STR15## where R is as defined above and R 1 is a divalent organic radical selected from the group consisting of the aromatic radicals defined by R, alkylene radicals of from 1-20 carbon atoms, cycloalkylene radicals of from 4-20 carbon atoms and alkylene terminated polydiorganosiloxane radicals having from 2-8 carbon atoms, R 2 is a divalent organic radical selected from the group consisting of alkylene radicals of from 1-18 carbon atoms, cycloalkylene radicals of from 4-18 carbon atoms and aromatic radicals of from 6-18 carbon atoms, R 3 is an alkyl radical of from 2-20 carbon atoms having an unsaturated functional group selected from the group of the formulas consisting of ##STR16## and (b) heating the components of step (a) with mixing until molten.
Claim 2
Independent Claim
179 words
A method for plasticizing polyetherimide resin comprising: (a) adding to said polyetherimide resin an N-unsaturated alkyl bisimide of the formula, ##STR14## wherein n is a number having a value of from 0-3, m is equal to 0 or 1, R is a divalent aromatic radical of from 6-30 carbon atoms, A is of the formula ##STR15## where R is as defined above and R 1 is a divalent organic radical selected from the group consisting of the aromatic radicals defined by R, alkylene radicals of from 1-20 carbon atoms, cycloalkylene radicals of from 4-20 carbon atoms and alkylene terminated polydiorganosiloxane radicals having from 2-8 carbon atoms, R 2 is a divalent organic radical selected from the group consisting of alkylene radicals of from 1-18 carbon atoms, cycloalkylene radicals of from 4-18 carbon atoms and aromatic radicals of from 6-18 carbon atoms, R 3 is an alkyl radical of from 2-20 carbon atoms having an unsaturated functional group selected from the group of the formulas consisting of ##STR16## and (b) heating the components of step (a) with mixing until molten.
Claim 3
Dependent Claim
70 words
A method as in claim 1 wherein R is of the class consisting of ##STR17## and (2) divalent organic radicals of the general formula ##STR18## where Z is a member of the class consisting of divalent radicals of the formulas ##STR19## where q is equal to 0 or 1, y is a whole number of from 1-5 and R 4 is a monovalent organic radical of from 1-6 carbon atoms.
Claim 4
Dependent Claim
52 words
A method as in claim 2 wherein R and R 1 are divalent radicals of the formula ##STR20## where Z' is a number of the class of divalent radicals of the formulas ##STR21## q' is equal to 0 or 1 and y is a whole number having a value of from 1-5.
Claim 5
Dependent Claim
20 words
A method as in claim 2 wherein m is 0, n is 0 and R is of the formula ##STR22##
Claim 6
Dependent Claim
23 words
A method as in claim 1 wherein the components of step (a) are heated to a temperature in the range of 200°-300° C.
Claim 7
Dependent Claim
18 words
A method as in claim 1 wherein the components of step (a) are heated under an inert atmosphere.
Claim 8
Dependent Claim
17 words
A method as in claim 5 wherein heating is limited to a period of from 1-30 minutes.
Claim 9
Dependent Claim
16 words
A method as in claim 1 wherein the components of step (a) additionally comprise a solvent.
Claim 10
Dependent Claim
23 words
A method as in claim 8 wherein the solvent is selected from the group consisting of methylene chloride, chlorobenzene, o-dichlorobenzene, chloroform and toluene.
Claim 11
Dependent Claim
53 words
A method as in claim 2 wherein R 3 is of the formula --C w H 2w ) f X, where w is a whole number from 1-5, f is equal to 0 or 1 and X is an unsaturated function group selected from the group consisting of --C.tbd.C--H, --HC═CH 2 and ##STR23##
Claim 12
Independent Claim
33 words
A method for plasticizing polyetherimide resin comprising (a) adding to said polyetherimide resin an N-unsaturated alkyl bisimide of the formula ##STR24## and (b) heating the components of step (a) with mixing until molten.
Claim 13
Independent Claim
33 words
A method for plasticizing polyetherimide resin comprising (a) adding to said polyetherimide resin an N-unsaturated alkyl bisimide of the formula ##STR24## and (b) heating the components of step (a) with mixing until molten.
Claim 14
Dependent Claim
173 words
A plasticized polyetherimide blend comprising a homogeneous mixture of: (a) a polyetherimide of the formula ##STR25## (b) an N-unsaturated alkyl bisimide of the formula ##STR26## wherein R is a divalent aromatic radical of from 6-30 carbon atoms, A is of the formula ##STR27## where R is as defined above, R 1 is a divalent organic radical selected from the group consisting of R radicals, alkylene radicals of from 1-20 carbon atoms, cycloalkylene radicals of from 6-20 carbon atoms and alkylene terminated polydiorganosiloxane radicals having from 2-8 carbon atoms, R 2 is a divalent organic radical selected from the group consisting of alkylene radicals of from 1-18 carbon atoms, cycloalkylene radicals of from 4-18 carbon atoms and aromatic radicals of from 6-18 carbon atoms, R 3 is an alkyl radical of from 2-20 carbon atoms having an unsaturated functional group selected from the group of formulas consisting of ##STR28## b is a whole number in excess of 1, and n is a number of from 0-3 and m is equal to 0 or 1.
Claim 15
Dependent Claim
173 words
A plasticized polyetherimide blend comprising a homogeneous mixture of: (a) a polyetherimide of the formula ##STR25## (b) an N-unsaturated alkyl bisimide of the formula ##STR26## wherein R is a divalent aromatic radical of from 6-30 carbon atoms, A is of the formula ##STR27## where R is as defined above, R 1 is a divalent organic radical selected from the group consisting of R radicals, alkylene radicals of from 1-20 carbon atoms, cycloalkylene radicals of from 6-20 carbon atoms and alkylene terminated polydiorganosiloxane radicals having from 2-8 carbon atoms, R 2 is a divalent organic radical selected from the group consisting of alkylene radicals of from 1-18 carbon atoms, cycloalkylene radicals of from 4-18 carbon atoms and aromatic radicals of from 6-18 carbon atoms, R 3 is an alkyl radical of from 2-20 carbon atoms having an unsaturated functional group selected from the group of formulas consisting of ##STR28## b is a whole number in excess of 1, and n is a number of from 0-3 and m is equal to 0 or 1.
Claim 16
Dependent Claim
72 words
A plasticized polyetherimide blend of claim 12 wherein R is a member of the class consisting of ##STR29## and (2) divalent organic radicals of the general formula ##STR30## where Z is a member selected from the class consisting of divalent radicals of the formulas ##STR31## where q is equal to 0 or 1, y is a whole number from 1-5 and R 4 is a monovalent radical of from 1-6 carbon atoms.
Claim 17
Dependent Claim
48 words
A plasticized polyetherimide blend of claim 12 wherein R and R 1 are of the formula ##STR32## wherein Z' is a member of the class of divalent radicals of the formulas, ##STR33## q' is equal to 0 or 1 and y is a whole number of from 1-5.
Claim 18
Dependent Claim
22 words
A plasticized polyetherimide blend as in claim 13 wherein m is 0, n is 0 and R is of the formula ##STR34##
Claim 19
Dependent Claim
52 words
A plasticized polyetherimide blend as in claim 15 wherein R 3 is of the formula --C w H 2w ) f X, where w is a whole number of from 1-5, f is equal to 0 or 1 and X is an unsaturated function group selected from the group consisting of ##STR35##
Claim 20
Dependent Claim
21 words
A plasticized polyetherimide blend as in claim 12 which exhibits a glass transition temperature in the range of 180° C.-198° C.
Claim 21
Dependent Claim
22 words
A plasticized polyetherimide blend of claim 12 wherein the polyetherimide:N-unsaturated alkyl bisimide weight ratio falls within the range of 1:99 to 99:1.
Claim 22
Dependent Claim
22 words
A plasticized polyetherimide blend of claim 15 wherein the polyetherimide:N-unsaturated alkyl bisimide weight ratio falls within the range of 99:1 to 1:1.5.
Claim 23
Dependent Claim
71 words
A plasticized polyetherimide blend comprising a homogeneous mixture of (a) a polyetherimide of the formula, ##STR36## wherein b' is a whole number having a value in the range of 20-50 and (b) an N-unsaturated alkyl bisimide of the formula ##STR37## wherein w is a whole number of from 1-5 inclusive, f is equal to 0 or 1 and X is an unsaturated functional group selected from the group consisting of ##STR38##
Claim 24
Dependent Claim
71 words
A plasticized polyetherimide blend comprising a homogeneous mixture of (a) a polyetherimide of the formula, ##STR36## wherein b' is a whole number having a value in the range of 20-50 and (b) an N-unsaturated alkyl bisimide of the formula ##STR37## wherein w is a whole number of from 1-5 inclusive, f is equal to 0 or 1 and X is an unsaturated functional group selected from the group consisting of ##STR38##
Claim 25
Dependent Claim
16 words
A plasticized polyetherimide blend as in claim 20 wherein the N-unsaturated alkyl bisimide is 2,2-bis-[4-phenyl,4-(N-2,3-propenyl phthalimide)ether]propane.
Claim 26
Dependent Claim
49 words
A rigid polyetherimide blend obtained by (a) forming a mixture comprised of (i) a polyetherimide utilized in a plasticized polyetherimide blend of claim 12 and (ii) an N-unsaturated alkyl bisimide utilized in a plasticized polyetherimide blend of claim 12 and (b) polymerizing the N-unsaturated alkyl bisimide within the mixture.
Claim 27
Dependent Claim
13 words
A rigid polyetherimide blend of claim 22 where the mixture formed is homogeneous.
Claim 28
Dependent Claim
19 words
A rigid polyetherimide blend obtained by polymerizing the N-unsaturated alkyl bisimide within a plasticized polyetherimide blend of claim 13.
Claim 29
Dependent Claim
19 words
A rigid polyetherimide blend obtained by polymerizing the N-unsaturated alkyl bisimide within a plasticized polyetherimide blend of claim 15.
Claim 30
Dependent Claim
35 words
A rigid polyetherimide blend of claim 25 wherein the N-unsaturated alkyl bisimide is polymerized by heating the plasticized polyetherimide blend to a temperature above about 200° C. for a period of at least 15 minutes.
Claim 31
Dependent Claim
52 words
A rigid polyetherimide blend as in claim 25 wherein R 3 is of the formula --C w H 2w ) f X, where w is a whole number of from 1-5, f is equal to 0 or 1 and X is an unsaturated function group selected from the group consisting of ##STR39##
Claim 32
Dependent Claim
15 words
A rigid polyetherimide blend of claim 25 wherein the N-unsaturated alkyl bisimide is 2,2-bis-[4-phenyl,4-(N-2,3-propenyl phthalimide)ether]propane.
Claim 33
Dependent Claim
22 words
A rigid polyetherimide blend of claim 25 wherein the polyetherimide:N-unsaturated alkyl bisimide weight ratio falls within the range of 1:99 to 99:1.
Claim 34
Dependent Claim
22 words
A rigid polyetherimide blend of claim 25 wherein the polyetherimide:N-unsaturated alkyl bisimide weight ratio falls within the range of 99:1 to 1:1.5.
Claim 35
Dependent Claim
15 words
A rigid polyetherimide blend of claim 25 additionally comprising up to 50% by weight fillers.
Claim 36
Dependent Claim
30 words
A rigid polyetherimide blend of claim 31 wherein the fillers are selected from the group consisting of clay, silica, calcium carbonate, aluminum trihydrate, carbon black, talc, calcium sulfate and wollastonite.
Claim 37
Dependent Claim
18 words
A rigid polyetherimide blend of claim 32 wherein the fillers are in the form of a fiber matrix.
Claim 38
Dependent Claim
21 words
A rigid polyetherimide blend of claim 25 wherein the N-unsaturated alkyl bisimide is polymerized with the aid of a thermal-curing catalyst.
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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) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |