Patent CA1072414A successfully refreshed from Google Patents.
US3024216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions of partially hydrolyzed vinyl chloride-vinyl acetate copolymers and polyurethane resins, polyethylene coated with same and process for making coated article
Assignee: Union Carbide Corp
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Filing: 1958-07-28
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Granted: 1962-03-06
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Smitmans Gretchen
- 👤 Walter K Vollmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:52
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6212; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C09D175/00; C09D175/04; C09D175/08; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08L; C08L75/00; C08L75/04; C08L75/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/3158; Y10T428/31587
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A POLYETHYLENE SURFACE COATED WITH THE CURED PRODUCT OF A COMPOSITION COMPRISING A PARTIALLY HYDROLYZED VINYL CHLORIDE-VINYL ACETATE COPOLYMER AND A LIQUID POLYRETHANE RESIN WHERIN THE SAID COPOLYMER IS PRESENT IN AN AMOUNT FROM ABOUT 0.3 TO ABOUT 2 PARTS BY WEIGHT FOR EACH PART BY WEIGHT POLYURETHANE RESIN AND WHERIN SAID POLYURETHANE RESIN IS THE REACTION PRODUCT OBTAINED BY REACTING A MIXTURE CONTAINING A DIISOCYANATE AND A POLYALKYLENE GLYCOL IN AMOUNT SUCH THAT THE RATIO OF ISOCYANATE GROUPS TO HYDROXYL GROUPS IS FROM ABOUT 1.2 TO ABOUT 3 TO 1.
Claim 2
Dependent Claim
91 words
A POLYETHYLENE SURFACE COATED WITH THE CURED PRODUCT OF A COMPOSITION COMPRISING A PARTIALLY HYDROLYZED VINYL CHLORIDE-VINYL ACETATE COPOLYMER AND A LIQUID POLYRETHANE RESIN WHERIN THE SAID COPOLYMER IS PRESENT IN AN AMOUNT FROM ABOUT 0.3 TO ABOUT 2 PARTS BY WEIGHT FOR EACH PART BY WEIGHT POLYURETHANE RESIN AND WHERIN SAID POLYURETHANE RESIN IS THE REACTION PRODUCT OBTAINED BY REACTING A MIXTURE CONTAINING A DIISOCYANATE AND A POLYALKYLENE GLYCOL IN AMOUNT SUCH THAT THE RATIO OF ISOCYANATE GROUPS TO HYDROXYL GROUPS IS FROM ABOUT 1.2 TO ABOUT 3 TO 1.
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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |