US2946774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymers of ethylenic monomers and ethylenic esters of alcohols from reduction of fatty acids of glyceride oil acids
Assignee: PPG Industries Inc
•
Filing: 1954-07-13
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Granted: 1960-07-26
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Expires: 1974-07-13
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:55
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08F218/00; C08F218/02; C08F218/04; C08F218/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN INTERPOLYMER SOLUBLE IN AROMATIC HYDROCARBON SOLVENTS AND BEING ESSENTIALLY OF APPROXIMATELY EQUAL PARTS BY WEIGHT OF VINYL CHLORIDE AND VINYL ACETATE AND 20 PERCENT BY WEIGHT BASED UPON THE TOTAL MIXTURE OF AN ESTER OF METHACRYLIC ACID AND AN ALCOHOL DERIVED BY SELECTIVELY REDUCING THE CARBOXYL OF A DRYING OIL ACID, SAID INTERPOLYMER, WHEN SPREAD AS A FILM, BEING ADAPTED TO DRY OXIDATIVE CROSS-LINKING TO A HARD, DURABLE, ALKALI RESISTANT STATE.
Claim 2
Dependent Claim
72 words
AN INTERPOLYMER SOLUBLE IN AROMATIC HYDROCARBON SOLVENTS AND BEING ESSENTIALLY OF APPROXIMATELY EQUAL PARTS BY WEIGHT OF VINYL CHLORIDE AND VINYL ACETATE AND 20 PERCENT BY WEIGHT BASED UPON THE TOTAL MIXTURE OF AN ESTER OF METHACRYLIC ACID AND AN ALCOHOL DERIVED BY SELECTIVELY REDUCING THE CARBOXYL OF A DRYING OIL ACID, SAID INTERPOLYMER, WHEN SPREAD AS A FILM, BEING ADAPTED TO DRY OXIDATIVE CROSS-LINKING TO A HARD, DURABLE, ALKALI RESISTANT STATE.
References Cited (Backward Citations)
US2168535A
Cited
GB639999A
Cited
US2574847A
Cited
US2636024A
Cited
US2673151A
Cited
US2836580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |