Patent US3313787A successfully refreshed from Google Patents.
US3313787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated hydrocarbon copolymers comprising at least one alpha-olefin and an alkenyl substituted acetylene and process for preparing same
Assignee: Montedison SpA
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Filing: 1964-04-29
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Granted: 1967-04-11
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Valvassori Alberto
- 👤 Turba Vittorio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:01
CPC Classifications
C; C08; C08F; C08F36/00; C08F10/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
121 words
A SUSBTANTIALLY LINEAR, AMORPHOUS, UNSATURATED HIGHMOLECULAR WEIGHT COPOLYMER OF AT LEAST ONE ACETYLENIC MONOMER AND AT LEAST ONE MONOMER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND AN ALIPHATIC ALPHAOLEFIN HAVING THE GENERAL FORMULA R-CH=CH2, WHEREIN R IS AN ALKYL GROUP OF 1 TO 6 CARBON ATOMS; SAID ACETYLENIC MONOMER CHARACTERIZED BY THE FORMULA R''-C$C-R" WHEREIN R'' IS EITHER AN ALKYL, CYCLOALKYL, ALKYLCYCLOALKYL, ARYL, OR ALKYLARYL GROUP HAVING AT LEAST ONE TERMINAL VINYL GROUP OR AN ALIPHATIC, CYCLOALIPHATIC OR ALKYLCYLOALIPHATIC GROUP HAVING AT LEAST ONE TERMINAL VINYL GROUP AND R" BEING THE SAME AS R'' OR AN ALKYL, CYCLOALKYL, ALKYLCYCLOALKYL, ARYL, OR ALKYLARYL GROUP; SAID COPLYMERS CONSISTING OF MACROMLECULES HAVING UNSATURATIONS AND COMPRISING MONOMER UNITS DERIVED FROM EACH OF THE MONOMER
Claim 2
Dependent Claim
121 words
A SUSBTANTIALLY LINEAR, AMORPHOUS, UNSATURATED HIGHMOLECULAR WEIGHT COPOLYMER OF AT LEAST ONE ACETYLENIC MONOMER AND AT LEAST ONE MONOMER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND AN ALIPHATIC ALPHAOLEFIN HAVING THE GENERAL FORMULA R-CH=CH2, WHEREIN R IS AN ALKYL GROUP OF 1 TO 6 CARBON ATOMS; SAID ACETYLENIC MONOMER CHARACTERIZED BY THE FORMULA R''-C$C-R" WHEREIN R'' IS EITHER AN ALKYL, CYCLOALKYL, ALKYLCYCLOALKYL, ARYL, OR ALKYLARYL GROUP HAVING AT LEAST ONE TERMINAL VINYL GROUP OR AN ALIPHATIC, CYCLOALIPHATIC OR ALKYLCYLOALIPHATIC GROUP HAVING AT LEAST ONE TERMINAL VINYL GROUP AND R" BEING THE SAME AS R'' OR AN ALKYL, CYCLOALKYL, ALKYLCYCLOALKYL, ARYL, OR ALKYLARYL GROUP; SAID COPLYMERS CONSISTING OF MACROMLECULES HAVING UNSATURATIONS AND COMPRISING MONOMER UNITS DERIVED FROM EACH OF THE MONOMER
Claim 3
Dependent Claim
10 words
AN ELASTOMER OBTAINED BY VULCANIZING THE COPOLYMERS OF CLAIM 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |