US3867336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant thermoplastic compositions
Assignee: General Electric Co
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Filing: 1973-04-13
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Granted: 1975-02-18
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Expires: 1993-04-13
Abstract
Abstract Normally flammable thermoplastic resins, including those with high ignition temperatures, such as poly(alkylene terephthalates) are rendered self-extinguishing by incorporation of an additive comprising an aryloxy-substituted poly halogenated aromatic compounds. The aryloxy substitution in the additive facilitates processing and substantially suppresses any tendency of the additive to plate out onto the surface of articles molded from the compositions.
Inventors
- 👤 Daniel W Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
27 words
A FLAME RETARDANT THERMOPLASTIC COMPOSITION COMPRISING: A. A NORMALLY FLAMMABLE THEREMOPLASTIC RESIN; AND B. A FLAME RETARDANT AMOUNT OF EITHER I, AN ADDITIVE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
27 words
A FLAME RETARDANT THERMOPLASTIC COMPOSITION COMPRISING: A. A NORMALLY FLAMMABLE THEREMOPLASTIC RESIN; AND B. A FLAME RETARDANT AMOUNT OF EITHER I, AN ADDITIVE OF THE GENERAL FORMULA
Claim 3
Dependent Claim
16 words
A flame retardant composition as defined in claim 1 wherein group G in said additive is
Claim 4
Dependent Claim
29 words
A flame retardant composition as defined in claim 1 wherein groups G and Y in said additive are bromine, Z is phenoxy, m is 1 and n is 4.
Claim 5
Dependent Claim
17 words
A flame retardant composition as defined in claim 2 wherein said additive (i) is of the formula
Claim 6
Dependent Claim
84 words
A flame retardant Composition as defined in claim 1 wherein said normally flammable thermoplastic resin is selected from the group consisting of a polymerization product of a vinyl monomer; a polymerization product of an olefinic monomer; a polymerization product of an acrylic or methacrylic monomer; a polymerization product of an allyl monomer; or a polyamide; a cellulose ester; an aromatic polycarbonate; a polyphenylene ether or a mixture thereof with a polystyrene resin; a polyester; and a mixture of at least two of the foregoing.
Claim 7
Dependent Claim
33 words
A flame retardant composition as defined in claim 5 wherein said normally flammable thermoplastic resin is a poly(alkylene terephthalate), isophthalate or mixed isophthalateterephthalate), said alkylene groups containing from 2 to 10 carbon atoms.
Claim 8
Dependent Claim
35 words
A flame retardant thermoplastic composition comprising: a. a normally flammable poly(1,4-butylene terephthalate) or a normally flammable poly(ethylene terephthalate); and b. from about 5 to about 25 parts by weight of an additive of the formula
Claim 9
Dependent Claim
35 words
A flame retardant thermoplastic composition comprising: a. a normally flammable poly(1,4-butylene terephthalate) or a normally flammable poly(ethylene terephthalate); and b. from about 5 to about 25 parts by weight of an additive of the formula
Claim 10
Dependent Claim
35 words
A flame retardant thermoplastic composition as defined in claim 7 which also includes from about 1 to about 10 parts by weight of antimony oxide based on 100 parts by weight of resinous component (a).
Claim 11
Dependent Claim
19 words
A flame retardant thermoplastic composition as defined in claim 7 wherein said normally flammable thermoplastic resin is poly(1,4-butylene terephthalate).
Claim 12
Dependent Claim
18 words
A flame-retardant thermoplastic composition as defined in claim 8 wherein said normally flammable thermoplastic resin is poly(1,4-butylene terephthalate).
Claim 13
Dependent Claim
25 words
A flame-retardant thermoplastic composition comprising: a. a normally flammable thermoplastic resin; and b. a flame-retardant amount of either i. an additive of the general formula
Claim 14
Dependent Claim
25 words
A flame-retardant thermoplastic composition comprising: a. a normally flammable thermoplastic resin; and b. a flame-retardant amount of either i. an additive of the general formula
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |