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Patent US4067927A successfully refreshed from Google Patents.
US4067927A
Expired / Lapsed
US
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Copolycondensed vinylphosphonates and their use as flame retardants
Assignee: Stauffer Chemical Co
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Filing: 1976-06-30
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Granted: 1978-01-10
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Expires: 1996-06-30
Abstract
Abstract There are disclosed novel copolycondensed vinylphosphonates and a process for their preparation. These products may be used as flame retardant monomers and are especially suitable for flame retarding textiles and a variety of other flammable substrates.
Inventors
- 👤 Edward D. Weil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:15
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/313; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4025; C08; C08G; C08G79/00; C08G79/02; C08G79/04; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08L; C08L101/00; C08L63/00; C08L85/00; C08L85/02; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
195 words
A flame retardant polymeric resin composition containing at least one copolycondensed vinylphosphonate said copolycondensed vinylphosphonate comprising the product resulting from the reaction in stoichiometric ratio of from about 1:10 to 10:1 between a bis-(2-haloalkyl) vinylphosphonate and at least one pentavalent phosphorus ester of the structure ROP(═O)XY where R is selected from the class consisting of C 1 -C 20 alkyl, C 2 - C 20 alkenyl, and C 1 - C 20 haloalkyl groups and X and Y are groups selected from the class consisting of RO -, C 1 -C 20 alkyl, C 2 -C 20 alkenyl, phenyl, phenoxy, amino, C 1 -C 20 alkyl substituted amino, phenyl substituted amino, C 2 -C 20 alkylene bonded to the same or to another ROP(═O) moiety and C 2 -C 20 alkylenoxy and C 2 -C 20 alkylenedioxy bonded to the same or to another ROP(═O) moiety, wherein said reaction is carried out at an elevated temperature for a period of time which is sufficient to evolve R-halide as a by-product and to form a P(O) -- O-- alkylene-O-P(O) linkage with the proviso that said product is not the homopolycondensed product of said bis-(2-haloalkyl) vinyl phosphonate.
Claim 2
Dependent Claim
195 words
A flame retardant polymeric resin composition containing at least one copolycondensed vinylphosphonate said copolycondensed vinylphosphonate comprising the product resulting from the reaction in stoichiometric ratio of from about 1:10 to 10:1 between a bis-(2-haloalkyl) vinylphosphonate and at least one pentavalent phosphorus ester of the structure ROP(═O)XY where R is selected from the class consisting of C 1 -C 20 alkyl, C 2 - C 20 alkenyl, and C 1 - C 20 haloalkyl groups and X and Y are groups selected from the class consisting of RO -, C 1 -C 20 alkyl, C 2 -C 20 alkenyl, phenyl, phenoxy, amino, C 1 -C 20 alkyl substituted amino, phenyl substituted amino, C 2 -C 20 alkylene bonded to the same or to another ROP(═O) moiety and C 2 -C 20 alkylenoxy and C 2 -C 20 alkylenedioxy bonded to the same or to another ROP(═O) moiety, wherein said reaction is carried out at an elevated temperature for a period of time which is sufficient to evolve R-halide as a by-product and to form a P(O) -- O-- alkylene-O-P(O) linkage with the proviso that said product is not the homopolycondensed product of said bis-(2-haloalkyl) vinyl phosphonate.
Claim 3
Dependent Claim
15 words
The resin composition of claim 1, wherein moieties of an epoxy resin are also present.
Claim 4
Dependent Claim
15 words
The resin composition of claim 1, wherein moieties of a poly(ethylene terephthalate) are also present.
Claim 5
Dependent Claim
20 words
The resin composition of claim 1, wherein said copolycondensed vinylphosphonate comprises the reaction product of bis(2-chloroethyl) vinylphosphonate and dimethyl methylphosphonate.
Claim 6
Dependent Claim
15 words
The resin composition of claim 1, wherein moieties of an unsaturated polyester are also present.
Claim 7
Dependent Claim
22 words
The resin composition of claim 1, wherein said copolycondensed vinylphosphonate has been substantially neutralized with a neutralizing amount of an alkylating reagent.
Claim 8
Dependent Claim
35 words
The resin composition of claim 5, wherein said copolycondensed vinylphosphonate has been substantially neutralized by being reacted with a neutralizing amount of a reagent selected from the group consisting of alkanols, trialkylorthoformates and epoxide reagents.
Claim 9
Dependent Claim
28 words
The resin composition of claim 7, wherein said epoxide reagent is selected from the group consisting of ethylene oxide, propylene oxide, epichlorohydrin and the diglycidyl ether of isopropylidenediphenol.
Claim 10
Dependent Claim
20 words
The resin composition of claim 1, wherein said copolycondensed vinylphosphonate comprises the reaction product of bis(2-chloroethyl) vinylphosphonate and tris(2-chloroethyl) phosphate.
Claim 11
Dependent Claim
20 words
The resin composition of claim 1, wherein said copolycondensed vinylphosphonate comprises the reaction product of bis(2-chloroethyl) vinylphosphonate and trimethyl phosphate.
Claim 12
Dependent Claim
20 words
The resin composition of claim 3, wherein said copolycondensed vinylphosphonate comprises the reaction product of bis(2-chloroethyl) vinylphosphonate and dimethyl methylphosphonate.
References Cited (Backward Citations)
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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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |