US3296190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyesters with a combination of carbodiimides and organosilicon compounds
Assignee: Bayer AG
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Filing: 1962-04-02
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Granted: 1967-01-03
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Reischl Arthur
- 👤 Holtschmidt Hans
- 👤 Neumann Wolfram
- 👤 Simmler Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0092; C07; C07C; C07C67/00; C07C67/48; C07C67/62; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3893; C08G18/40; C08G18/61; C08K; C08K5/00; C08K5/16; C08K5/29; C08K5/54; C08L; C08L67/00; C08L75/00; C08L75/04; C08L75/06; Y; Y10; Y10S; Y10S521/00; Y10S521/901; Y10S525/00; Y10S525/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A POLYESTER STABILIZED AGAINST HYDROLYSIS AND AGING BY HAVING INCORPORATED THEREIN A STABILIZING AMOUNT OF A CARBODIMIDE AND A STABILIZING AMOUNT OF A SILICON COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
29 words
A POLYESTER STABILIZED AGAINST HYDROLYSIS AND AGING BY HAVING INCORPORATED THEREIN A STABILIZING AMOUNT OF A CARBODIMIDE AND A STABILIZING AMOUNT OF A SILICON COMPOUND HAVING 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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |