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US4107232A
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US
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Flame retardant, non-dripping compositions of polyphenylene ether and acrylonitrile-butadiene-styrene
Assignee: General Electric Co
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Filing: 1975-12-22
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Granted: 1978-08-15
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Expires: 1995-12-22
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 Robert Haaf
- 👤 Donald Lewis Reinhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:52
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
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A flame retardant, non-dripping thermoplastic molding composition which comprises: a. a normally flammable copolymer of acrylonitrile-butadiene-styrene; b. a halogenated 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 c. 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
73 words
A flame retardant, non-dripping thermoplastic molding composition which comprises: a. a normally flammable copolymer of acrylonitrile-butadiene-styrene; b. a halogenated 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 c. 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
30 words
A flame retardant composition as defined in claim 1 wherein the flame retardant component comprises from 2.0 to 25 parts by weight per hundred parts by weight of the composition.
Claim 4
Dependent Claim
27 words
A flame retardant composition as defined in claim 2 wherein the polytetrafluoroethylene comprises from 0.1 to 3 parts by weight per hundred parts by weight of composition.
Claim 5
Dependent Claim
19 words
A flame retardant composition as defined in claim 3 wherein the halogenated flame retardant is a chlorine containing compound.
Claim 6
Dependent Claim
69 words
A composition which consists essentially of: a. a normally flammable copolymer of acrylonitrile-butadiene-styrene; b. a halogenated 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 c. a polytetrafluoroethylene resin in a minor proportion based on said thermoplastic molding composition in an amount at least sufficient to render said thermoplastic composition non-dripping.
Claim 7
Dependent Claim
69 words
A composition which consists essentially of: a. a normally flammable copolymer of acrylonitrile-butadiene-styrene; b. a halogenated 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 c. a polytetrafluoroethylene resin in a minor proportion based on said thermoplastic molding composition in an amount at least sufficient to render said thermoplastic composition non-dripping.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |