US3145147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film forming composition of copolymers of nu-vinyl-epsilon-caprolactam
Assignee: GAF Chemicals Corp
•
Filing: 1961-02-20
•
Granted: 1964-08-18
•
Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Glickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/817; A61Q; A61Q5/00; A61Q5/06; C08J2339/00; C08J2339/04; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FILM FORMING COMPOSITION COMPRISING A COPOLYMER OF FROM 80 TO 95% BY WEIGHT OF N-VINYL-E-CAPROLACTAM AND FROM 5 TO 20% BY WEIGHT OF A POLYMERIZABLE MONOMER SELECTED FROM THE CLASS CONSISTING OF VINYL ESTERS OF FROM 3 TO 6 CARBON ATOMS, ALKYL ACRYLATES OF FROM 4 TO 5 CARBON ATOMS, AND ACRYLAMIDES, ACRYLONITRILES, AND ALKYL VINYL ESTERS OF FROM 3 TO 4 CARBON ATOMS, SAID COPOLYMER DISSOLVED IN A SOLVENT SELECTED FROM THE CLASS CONSISTING OF LOWER ALCOHOLS, METHYLENE CHLORIDE, AND ACETONE AND SAID SOLUTION FURTHER DISSOLVED IN AT LEAST ONE LIQUEFIED PROPELLANT SELECTED FROM THE CLASS CONSISTING OF CHLOROFLUOROHYDROCARBONS OF THE METHANE AND ETHANE SERIES.
Claim 2
Dependent Claim
107 words
A FILM FORMING COMPOSITION COMPRISING A COPOLYMER OF FROM 80 TO 95% BY WEIGHT OF N-VINYL-E-CAPROLACTAM AND FROM 5 TO 20% BY WEIGHT OF A POLYMERIZABLE MONOMER SELECTED FROM THE CLASS CONSISTING OF VINYL ESTERS OF FROM 3 TO 6 CARBON ATOMS, ALKYL ACRYLATES OF FROM 4 TO 5 CARBON ATOMS, AND ACRYLAMIDES, ACRYLONITRILES, AND ALKYL VINYL ESTERS OF FROM 3 TO 4 CARBON ATOMS, SAID COPOLYMER DISSOLVED IN A SOLVENT SELECTED FROM THE CLASS CONSISTING OF LOWER ALCOHOLS, METHYLENE CHLORIDE, AND ACETONE AND SAID SOLUTION FURTHER DISSOLVED IN AT LEAST ONE LIQUEFIED PROPELLANT SELECTED FROM THE CLASS CONSISTING OF CHLOROFLUOROHYDROCARBONS OF THE METHANE AND ETHANE SERIES.
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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |