Patent US3207732A successfully refreshed from Google Patents.
US3207732A
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Copolymers of ethylene and n-methyl-n-vinylacetamide
Assignee: Union Carbide Corp
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Filing: 1961-08-07
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Granted: 1965-09-21
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 John W Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:00
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/24; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10724; B32B27/00; C08; C08F; C08F10/00; C08F226/00; C08F226/02; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6204; C08G18/6283; C09J123/00; C09J123/02; C09J123/04; C09J123/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31598; Y10T428/31601; Y10T428/31623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A SOLID COPOLYMER OF ETHYLENE AND N-METHYL-NVINYLACETAMIDE HAVING FROM 1 TO 95 PERCENT OF POLYMERIZED ETHYLENE AND FROM 99 TO 5 PERCENT OF POLYMERIZED N-METHYL-N-VINYLACETAMIDE, SAID COPOLYMER HAVING BEEN PRODUCED BY THE HIGH PRESSURE COPOLYMERIZATION OF MONOMERIC ETHYLENE AND MONOMERIC N-METHYL-N-VINYLACETAMIDE IN CONTACT WITH A FREE-RADICAL CATALYST.
Claim 2
Dependent Claim
47 words
A SOLID COPOLYMER OF ETHYLENE AND N-METHYL-NVINYLACETAMIDE HAVING FROM 1 TO 95 PERCENT OF POLYMERIZED ETHYLENE AND FROM 99 TO 5 PERCENT OF POLYMERIZED N-METHYL-N-VINYLACETAMIDE, SAID COPOLYMER HAVING BEEN PRODUCED BY THE HIGH PRESSURE COPOLYMERIZATION OF MONOMERIC ETHYLENE AND MONOMERIC N-METHYL-N-VINYLACETAMIDE IN CONTACT WITH A FREE-RADICAL CATALYST.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |