US4355126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant, non-dripping compositions of polyphenylene ether and acrylonitrile-butadiene-styrene
Assignee: General Electric Co
•
Filing: 1979-02-26
•
Granted: 1982-10-19
•
Expires: 1999-02-26
Abstract
Abstract The present invention provides novel flame retardant, non-dripping thermoplastic molding compositions of polyphenylene ether resins or acrylonitrile-butadiene-styrene copolymers which include a flame retardant agent, and polytetrafluoroethylene.
Inventors
- 👤 William R. Haaf
- 👤 Donald L. Reinhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:28
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08K; C08K5/00; C08K5/0008; C08K5/0066; C08L55/00; C08L55/02; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L2201/00; C08L2201/02; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L69/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
88 words
A flame retardant, one-dripping thermoplastic molding composition which comprises: (a) from 10-95 parts by weight of normally flammable polyphenylene ether resin; (b) from 5-90 parts by weight of a vinyl aromatic resin; (c) a flame retardant additive in a minor proportion based on said thermoplastic molding composition but in an amount sufficient to render said thermoplastic composition non-burning or self-extinguishing; and (d) A polytetrafluoroethylene resin in a minor proportion based on said thermoplastic molding composition in an amount at least sufficient to render said thermoplastic molding composition non-dripping.
Claim 2
Dependent Claim
88 words
A flame retardant, one-dripping thermoplastic molding composition which comprises: (a) from 10-95 parts by weight of normally flammable polyphenylene ether resin; (b) from 5-90 parts by weight of a vinyl aromatic resin; (c) a flame retardant additive in a minor proportion based on said thermoplastic molding composition but in an amount sufficient to render said thermoplastic composition non-burning or self-extinguishing; and (d) A polytetrafluoroethylene resin in a minor proportion based on said thermoplastic molding composition in an amount at least sufficient to render said thermoplastic molding composition non-dripping.
Claim 3
Dependent Claim
27 words
A composition as defined in claim 1 which includes from 0.1 to 0.25 parts by weight per hundred parts by weight of the composition of the polytetrafluoroethylene.
Claim 4
Dependent Claim
73 words
A flame retardant, non-dripping thermoplastic molding composition which comprises: (a) from 10-95 parts by weight of a normally flamable polyphenylene ether resin; (b) from 5-90 parts by weight of a vinyl aromatic resin; (c) from 2 to 25 parts by weight per hundred parts by weight of the composition of a flame retardant additive; and (d) from 0.1 to 0.25 parts by weight per hundred parts by weight of the composition of polytetrafluoroethylene.
Claim 5
Dependent Claim
73 words
A flame retardant, non-dripping thermoplastic molding composition which comprises: (a) from 10-95 parts by weight of a normally flamable polyphenylene ether resin; (b) from 5-90 parts by weight of a vinyl aromatic resin; (c) from 2 to 25 parts by weight per hundred parts by weight of the composition of a flame retardant additive; and (d) from 0.1 to 0.25 parts by weight per hundred parts by weight of the composition of polytetrafluoroethylene.
Claim 6
Dependent Claim
107 words
A flame retardant composition as defined in claim 3 wherein the polyphenylene ether resin has units of the formula: ##STR6## wherein the oxygen ether atom of one unit is connected to the benzene nucleus of the next adjoining unit, n is a positive integer and is at least 50, and each Q is a monovalent substituent selected from the group consisting of hydrogen, halogen, hydrocarbon radicals free of a tertiary alpha-carbon atom, halohydrocarbon radicals having at least two carbon atoms between the halogen atom and the phenyl nucleus, hydrocarbonxy radicals and halohydrocarbonoxy radicals having at least two carbon atoms between the halogen atom and the phenyl nucleus.
Claim 7
Dependent Claim
17 words
A flame retardant composition as defined in claim 3 wherein said polyphenylene ether resin is poly(2,6-dimethyl-1,4-phenylene) ether.
Claim 8
Dependent Claim
16 words
A composition as defined in claim 3 wherein the vinyl aromatic resin is rubber-modified, high-impact polystyrene.
Claim 9
Dependent Claim
74 words
A flame retardant composition as defined in claim 3 wherein component (c) is a halogen containing compound, a halogen containing compound in admixture with antimony oxide; elemental phosphorus or a phosphorus compound; a halogen-containing compound in admixture with a phosphorus compound; a compound containing phosphorus-nitrogen bonds; or a mixture of the foregoing, and said compound is present in an amount of from 0.1 to 50 parts by weight per hundred parts of said resin.
Claim 10
Dependent Claim
74 words
A flame retardant composition as defined in claim 7 wherein said halogen containing compound is an aromatic halogen containing compound selected from the group consisting of chlorinated benzene, brominated benzene, chlorinated biphenyl, chlorinated terphenyl, brominated biphenyl, brominated terphenyl, a compound comprising two phenyl radicals separated by a divalent alkylene or oxygen group and having at least two substituents selected from the group consisting of chlorine and bromine per phenyl radical; and a mixture thereof.
Claim 11
Dependent Claim
16 words
A flame retardant composition as defined in claim 8 wherein said organic halogen compound is tetrabromobisphenol-A.
Claim 12
Dependent Claim
16 words
A flame retardant composition as defined in claim 8 wherein said organic halogen compound is hexabromobenzene.
Claim 13
Dependent Claim
18 words
A flame retardant composition as defined in claim 8 wherein said organic halogen compound is a chlorinated biphenyl.
Claim 14
Dependent Claim
21 words
A flame retardant composition as defined in claim 7 wherein said flame retardant additive is hexabromobenzene in admixture with antimony oxide.
Claim 15
Dependent Claim
38 words
A flame retardant composition as defined in claim 7 wherein said flame retardant additive is selected from the group consisting of elemental phosphorus, organic phosphonic acids, phosphonates, phosphinates, phosphonites, phosphinites, phosphine oxides, phosphines, phosphites, phosphates and mixtures thereof.
Claim 16
Dependent Claim
16 words
A flame retardant composition as defined in claim 13 wherein said flame retardant additive is triphenylphosphate.
Claim 17
Dependent Claim
22 words
A flame retardant composition as defined in claim 7 wherein said flame retardant additive is a mixture of tetrabromobisphenol-A and triphenyl phosphate.
References Cited (Backward Citations)
US2505349A
Cited
US2550139A
Cited
GB698385A
Cited
US2713566A
Cited
US2698313A
Cited
US2820773A
Cited
US2908661A
Cited
US3382212A
Cited
US3219626A
Cited
US3306874A
Cited
US3306875A
Cited
US3257357A
Cited
US3257358A
Cited
US3330806A
Cited
US3342892A
Cited
US3357499A
Cited
US3383435A
Cited
US3344116A
Cited
US3442885A
Cited
US3455880A
Cited
US3440217A
Cited
US3573257A
Cited
US3356761A
Cited
US3384619A
Cited
GB1291609A
Cited
GB1344093A
Cited
US4128602A
Cited
US4128602B1
Cited
US3671487A
Cited
US3809729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |