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US4218357A
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Plasticized polycarbonate composition
Assignee: General Electric Co
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Filing: 1978-10-13
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Granted: 1980-08-19
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Expires: 1998-10-13
Abstract
Abstract A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an organic sulfonamide plasticizer.
Inventors
- 👤 Victor Mark
- 👤 Phillip S. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:09
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/43
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
28 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an organic plasticizer selected from the following formulae: ##STR12##
Claim 2
Dependent Claim
28 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an organic plasticizer selected from the following formulae: ##STR12##
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein the organic plasticizer is present in an amount of from 0.05 to about 5.0 parts per hundred parts of aromatic carbonate polymer.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein the aromatic carbonate polymer is derived from bisphenol-A.
Claim 5
Dependent Claim
19 words
The composition of claim 1 wherein the aromatic carbonate polymer is a copolymer derived from bisphenol-A and tetrabromo bisphenol-A.
References Cited (Backward Citations)
US3186961A
Cited
US4123411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-19 | 1984-02-18 | 1984-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-19 | 1988-02-18 | 1988-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-19 | 1992-02-18 | 1992-08-19 | $7700.00 | Window Closed / Lapsed |