US4230611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silane plasticized polycarbonate composition
Assignee: General Electric Co
•
Filing: 1977-12-28
•
Granted: 1980-10-28
•
Expires: 1997-12-28
Abstract
Abstract A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of a silane plasticizer.
Inventors
- 👤 Victor Mark
- 👤 Phillip S. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:09
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/549
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
27 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of a silane plasticizer of the following formulae: ##STR13##
Claim 2
Dependent Claim
27 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of a silane plasticizer of the following formulae: ##STR13##
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein the silane 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)
GB800554A
Cited
US4066611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |