US3243415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric composition of vinylidene cyanide on unsaturated sulfonic acid and a non-ionic nonethylenically unsaturated monomer
Assignee: EIDP Inc
•
Filing: 1961-10-06
•
Granted: 1966-03-29
•
Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Myron Q Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:53
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/30; C08F22/34; C08F28/00; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A COMPOSITION OF MATTER COMPRISING A FIBER-FORMING COPOLYMER PREPARED FROM A MIXTURE INCLUDING A FREE RADICAL CATALYST AND AT LEAST 20% VINYLIDENE CYANIDE AND FROM ABOUT 0.4% TO ABOUT 20% BY WEIGHT OF A COMBINED HYDROLYZABLE ALKYL ESTER OF A SULFONIC ACID SELECTED FROM THE GROUP CONSISTING OF STYRENESULFONIC ACID, ETHYLENESULFONIC ACID, 2-PROPENESULFONIC ACID, 2-METHYL-2-PROPENESULFONIC ACID, AND P-STYRYLMETHANESULFONIC ACID AND HAVING FROM ONE TO FIVE CARBON ATOMS IN THE ALKYL CHAIN OF THE ESTER, AND UP TO ABOUT 60% BY WEIGHT OF A COMBINED COPOLYMERIZABLE NON-IONIC MONOETHYLENICALLY UNSATURATED MONOMER, THE TOTAL AMOUNTS OF CYANIDE, ESTER AND MONOMER BEING 100%.
Claim 2
Dependent Claim
99 words
A COMPOSITION OF MATTER COMPRISING A FIBER-FORMING COPOLYMER PREPARED FROM A MIXTURE INCLUDING A FREE RADICAL CATALYST AND AT LEAST 20% VINYLIDENE CYANIDE AND FROM ABOUT 0.4% TO ABOUT 20% BY WEIGHT OF A COMBINED HYDROLYZABLE ALKYL ESTER OF A SULFONIC ACID SELECTED FROM THE GROUP CONSISTING OF STYRENESULFONIC ACID, ETHYLENESULFONIC ACID, 2-PROPENESULFONIC ACID, 2-METHYL-2-PROPENESULFONIC ACID, AND P-STYRYLMETHANESULFONIC ACID AND HAVING FROM ONE TO FIVE CARBON ATOMS IN THE ALKYL CHAIN OF THE ESTER, AND UP TO ABOUT 60% BY WEIGHT OF A COMBINED COPOLYMERIZABLE NON-IONIC MONOETHYLENICALLY UNSATURATED MONOMER, THE TOTAL AMOUNTS OF CYANIDE, ESTER AND MONOMER BEING 100%.
Claim 3
Dependent Claim
81 words
A COMPOSITION OF MATTER PREPARED BY HYDROLYSIS OF A COPOLYMER OF CLAIM 1 AND COMPRISING A FIBER-FORMING COPOLYMER OF AT LEAST 20% VINYLIDENE CYANIDE AND FROM ABOUT 0.1% TO ABOUT 20% BY WEIGHT OF A COMBINED SULFONIC ACID SELECTED FROM THE GROUP CONSISTING OF STYRENESULFONIC ACID, ETHYLENESULFONIC ACID, 2-PROPENESULFONIC ACID, 2-METHYL-2-PROPENESULFONIC ACID, AND P-STYRYLMETHANESULFONIC ACID, AND UP TO ABOUT 60% BY WEIGHT OF A COMBINED COPOLYMERIZABLE NON-IONIC MONOETHYLENICALLY UNSATURATED MONOMER, THE TOTAL AMOUNT OF CYANIDE, SULFONIC ACID AND MONOMER BEING 100%.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |