US2865874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymers of alkyd resins, vinyl halides and vinyl esters
Assignee: PPG Industries Inc
•
Filing: 1953-11-24
•
Granted: 1958-12-23
•
Expires: 1973-11-24
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:53
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0478; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/48; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31699; Y10T428/31786; Y10T428/3179; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN INTERPOLYMER WHICH IS SOLUBLE IN AROMATIC HYDROCARBONS AND WHICH WILL DRY TO FORM DURABLE PROTEETIVE FILMS UPON SURFACES, WHICH INTERPOLYMER IS AN ADDITION PRODUCT OF A MIXTURE CONSISTING OF (A) AN ALKYD RESIN WHICH IS THE ESTERIFICATION PRODUCT OF A MIXTURE OF A POLYHYDRIC ALCOHOL, A DICARBOXYLIC ACID COMPONENT SUBSTANTIALLY FREE OF ETHYLENIC UNSATURATION AND A FATTY ACID OF AN UNSATURATED GLYCERIDE OIL, (B) VINYL ACETATE AND (C) VINYL CHLORIDE, SAID ALKYD RESIN BEING PRESENT IN AN AMOUNT OF ABOUT 10 TO 50 PERCENT BY WEIGHT BASED UPON THE INTERPOLYMERIZABLE COMPONENT, THE REST OF THE MIXTURE BEING VINYL ACETATE AND VINYL CHLORIDE.
Claim 2
Dependent Claim
103 words
AN INTERPOLYMER WHICH IS SOLUBLE IN AROMATIC HYDROCARBONS AND WHICH WILL DRY TO FORM DURABLE PROTEETIVE FILMS UPON SURFACES, WHICH INTERPOLYMER IS AN ADDITION PRODUCT OF A MIXTURE CONSISTING OF (A) AN ALKYD RESIN WHICH IS THE ESTERIFICATION PRODUCT OF A MIXTURE OF A POLYHYDRIC ALCOHOL, A DICARBOXYLIC ACID COMPONENT SUBSTANTIALLY FREE OF ETHYLENIC UNSATURATION AND A FATTY ACID OF AN UNSATURATED GLYCERIDE OIL, (B) VINYL ACETATE AND (C) VINYL CHLORIDE, SAID ALKYD RESIN BEING PRESENT IN AN AMOUNT OF ABOUT 10 TO 50 PERCENT BY WEIGHT BASED UPON THE INTERPOLYMERIZABLE COMPONENT, THE REST OF THE MIXTURE BEING VINYL ACETATE AND VINYL CHLORIDE.
References Cited (Backward Citations)
US2255313A
Cited
US2626250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |