US3225018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat curing of ethylene/vinylsilane copolymers
Assignee: Union Carbide Corp
•
Filing: 1961-12-15
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Granted: 1965-12-21
•
Expires: 1981-12-15
Abstract
No abstract record available.
Inventors
- 👤 Nathan L Zutty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
C; C08; C08L; C08L43/00; C08L43/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE PROCESS FOR CROSS-LINKING A SUBSTANTIALLY LINEAR COPOLYMER CONSISTING ESSENTIALLY OF FROM 5 TO 99 WEIGHT PERCENT POLYMERIZED ETHYLENE AND FROM 95 TO 1 WEIGHT PERCENT OF A POLYMERIZED VINYLTRIALKOXYSILANE REPRESENTED IN THE MONOMERIC FORM BY THE FORMULA: CH2=CH-SI(-O-R)3 WHEREIN EACH R IS AN ALKYL RADICAL HAVING FROM 1 TO 5 CARBON ATOMS, WHICH COMPRISES HEATING SAID COPOLYMER AT A TEMPERATURE OF FROM 130*C. TO 350*C.
Claim 2
Dependent Claim
66 words
THE PROCESS FOR CROSS-LINKING A SUBSTANTIALLY LINEAR COPOLYMER CONSISTING ESSENTIALLY OF FROM 5 TO 99 WEIGHT PERCENT POLYMERIZED ETHYLENE AND FROM 95 TO 1 WEIGHT PERCENT OF A POLYMERIZED VINYLTRIALKOXYSILANE REPRESENTED IN THE MONOMERIC FORM BY THE FORMULA: CH2=CH-SI(-O-R)3 WHEREIN EACH R IS AN ALKYL RADICAL HAVING FROM 1 TO 5 CARBON ATOMS, WHICH COMPRISES HEATING SAID COPOLYMER AT A TEMPERATURE OF FROM 130*C. TO 350*C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |