US4145329A
Expired / Lapsed
US
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Plasticized polycarbonate composition
Assignee: General Electric Co
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Filing: 1977-06-29
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Granted: 1979-03-20
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Expires: 1997-06-29
Abstract
Abstract A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an organic ether plasticizer.
Inventors
- 👤 Victor Mark
- 👤 Phillip S. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:31
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C08K5/0008; C08K5/0016; C08K5/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
58 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 group consisting of epoxidized soybean oil and those having the following formulae: ##STR11## (d) C 16 H 33 --O--C 16 H 33 ; (e) C 12 H 25 --O--C 12 H 25; ##STR12##
Claim 2
Dependent Claim
58 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 group consisting of epoxidized soybean oil and those having the following formulae: ##STR11## (d) C 16 H 33 --O--C 16 H 33 ; (e) C 12 H 25 --O--C 12 H 25; ##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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |