US4093589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-opaque flame retardant polycarbonate composition
Assignee: General Electric Co
•
Filing: 1977-02-03
•
Granted: 1978-06-06
•
Expires: 1997-02-03
Abstract
Abstract A non-opaque flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and an additive which may be the organic cationic salts of either monomeric or polymeric unsubstituted or substituted aliphatic, aromatic or heterocyclic sulfonic acids and inorganic acids.
Inventors
- 👤 Arnold Factor
- 👤 Donald Benjamin George Jaquiss
- 👤 Victor Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:08
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C08K5/02; C08K5/16; C08K5/17; C08K5/36; C08K5/41; C08K5/42; C08K5/49; C08K5/59; C08L; C08L101/00; C08L101/02; C08L69/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
71 words
A non-opaque flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a minor amount of an additive selected from the group consisting of the organic cationic salts of unsubstituted and substituted monomeric or polymeric aliphatic, aromatic or heterocyclic sulfonic acids and mixtures thereof and inorganic acids, the cationic porion of said organic cationic salt being selected from substituted or unsubstituted carbonium, sulfonium, ammonium, phosphonium, arsonium, and iodonium cations.
Claim 2
Dependent Claim
71 words
A non-opaque flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a minor amount of an additive selected from the group consisting of the organic cationic salts of unsubstituted and substituted monomeric or polymeric aliphatic, aromatic or heterocyclic sulfonic acids and mixtures thereof and inorganic acids, the cationic porion of said organic cationic salt being selected from substituted or unsubstituted carbonium, sulfonium, ammonium, phosphonium, arsonium, and iodonium cations.
Claim 3
Dependent Claim
34 words
The composition of claim 1 wherin the anionic portion of the organic cationic salt is an inorganic anion selected from the group consisting of chloride, bromide, iodide, sulfate, sulfite, carbonate, nitrate, phosphate and borate.
Claim 4
Dependent Claim
73 words
The composition of claim 1 wherein the anionic portion of the organic cationic salt is selected from the following anions: monomeric or polymeric aromatic sulfonates; monomeric or polymeric substituted aromatic sulfonates; monomeric or polymeric aromatic sulfonesulfonates; aromatic ketone sulfonates; heterocyclic sulfonates; halogenated methanesulfonates; perfluoroalkane sulfonates; aromtic sulfide sulfonates; monomeric or polymeric aromatic ether sulfonates; aliphatic and olefinic sulfonates; monomeric or polymeric phenol ester sulfonates; halocycloaliphatic aromatic sulfonates; monomeric or polymeric aromatic amide sulfonates.
Claim 5
Dependent Claim
28 words
The composition of claim 1 wherein the additive is prsent in an amount of from 0.001 to about 10.0 parts per hundred parts of the aromatic carbonate polymer.
Claim 6
Dependent Claim
10 words
The composition of claim 1 wherein the additive is: ##STR37##
Claim 7
Dependent Claim
10 words
The composition of claim 1 wherein the additive is: ##STR38##
Claim 8
Dependent Claim
10 words
The composition of claim 1 wherein the additive is: ##STR39##
Claim 9
Dependent Claim
10 words
The composition of claim 1 wherein the additive is: ##STR40##
Claim 10
Dependent Claim
33 words
The composition of claim 1 wherein the organic cationic salt is admixed with an alkali or alkaline earth metal salt of unsubstituted or substituted monomeric or polymeric aliphatic, aromatic or heterocyclic sulfonic acids.
References Cited (Backward Citations)
US3775367A
Cited
US3909490A
Cited
US3917559A
Cited
US3919167A
Cited
US3926908A
Cited
US3931100A
Cited
US3933734A
Cited
US3940366A
Cited
US3948851A
Cited
US3951910A
Cited
US3953396A
Cited
US3978024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |