US3838115A
Expired / Lapsed
US
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Silyl-norbornene and interpolymers prepared of same
Assignee: DSM Copolymer Inc
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Filing: 1973-01-29
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Granted: 1974-09-24
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Expires: 1993-01-29
Abstract
Abstract AN INTERPOLYMER FORMED BY THE ADDITION POLYMERIZATION OF ETHYLENE, AT LEAST ONE MONOOLEFIN HAVING THE GENERAL FORMULA CH2=CH-R, WITHOUT A POLYENE AND A SILYL NORBORNENE HAVING THE GENERAL FORMULA 1,3,7-TRI(R),2-((Y)M-SI(-X(3-(M+N)))(-(R'')N)-5-NORBORNENE IN WHICH R IS HYDROGEN, HALOGENATED OR UNHALOGENATED ALKLY, ARYLALKYL, ALKENYL OR 6- OR 7-ALKYLIDENE GROUP, R'' IS AN ALKYL, ARYL OR ALKENYL GROUP, X IS HYDROGEN AND Y IS HALOGEN, AND N AND M IS A NUMBER OF FROM 0 TO 2 SUCH THAT THE SOME OF M AND N IS NEVER MORE THAN 2.
Inventors
- 👤 W Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:19
CPC Classifications
C; C08; C08L; C08L43/00; C08L43/04; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/12; C08F; C08F210/00
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References Cited (Backward Citations)
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |