Patent EP0324965A2 successfully refreshed from Google Patents.
EP0324965A2
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Metathesis polymerized terpolymers
Assignee: Hercules LLC
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Filing: 1988-12-21
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Granted: —
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Expires: 2008-12-21
Abstract
Abstract This invention teaches the preparation of crosslinked terpolymers of dicyclopentadiene, tricyclopentadiene and tetracyclododecene or alkyl/alkylene derivatives of tetracyclododecene, which have significantly higher glass transition temperatures than that of dicyclopentadiene homopolymers, and which concomitantly exhibit significantly improved values of impact resistance over that known for copolymers of dicyclopentadiene.
Inventors
- 👤 Douglas Robert Leach
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
C; C08; C08F; C08F279/00; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
85 words
A metathesis catalyst ring-opening copolymerizable composition comprising from about 20% to about 80% by weight, based on total terpolymer weight, or repeating units derived from dicyclopentadiene, from about 10% to about 50% by weight of repeating units derived from tricyclopentadiene, and from about 10% to about 50% by weight of repeating units derived from tetracyclododecene or derivatives of tetracyclododecene, having the general formula: wherein R₁-R₂ denote the same or different hydrogen atoms or lower alkyl and alkylene groups having from 1 to 10 carbon atoms.
Claim 2
Dependent Claim
85 words
A metathesis catalyst ring-opening copolymerizable composition comprising from about 20% to about 80% by weight, based on total terpolymer weight, or repeating units derived from dicyclopentadiene, from about 10% to about 50% by weight of repeating units derived from tricyclopentadiene, and from about 10% to about 50% by weight of repeating units derived from tetracyclododecene or derivatives of tetracyclododecene, having the general formula: wherein R₁-R₂ denote the same or different hydrogen atoms or lower alkyl and alkylene groups having from 1 to 10 carbon atoms.
Claim 3
Dependent Claim
82 words
A crosslinked terpolymer comprising from about 20% to about 80% by weight, based on total terpolymer weight, of repeating units derived from dicyclopentadiene, from about 10% to about 50% by weight of repeating units derived from tricyclopentadiene, and from about 10% to about 50% by weight of repeating units derived from tetracyclododecene or derivatives of tetracyclododecene, having the general formula: wherein R₁-R₂ denote the same or different hydrogen atoms or lower alkyl and alkylene groups having from 1 to 10 carbon atoms.
Claim 4
Dependent Claim
82 words
A crosslinked terpolymer comprising from about 20% to about 80% by weight, based on total terpolymer weight, of repeating units derived from dicyclopentadiene, from about 10% to about 50% by weight of repeating units derived from tricyclopentadiene, and from about 10% to about 50% by weight of repeating units derived from tetracyclododecene or derivatives of tetracyclododecene, having the general formula: wherein R₁-R₂ denote the same or different hydrogen atoms or lower alkyl and alkylene groups having from 1 to 10 carbon atoms.
Claim 5
Dependent Claim
57 words
A crosslinked terpolymer as claimed in claim 2 which comprises from about 20% to about 80% by weight of repeating units derived from dicyclopentadiene, from about 10% to about 40% by weight of repeating units derived from tricyclopentadiene, and from about 10% to about 40% by weight of repeating units derived from tetracyclododecene or derivatives of tetracyclododecene.
Claim 6
Dependent Claim
32 words
A crosslinked terpolymer as claimed in claim 2 which also comprises a hydrocarbon elastomer in an amount of from about 3% to about 10% by weight, based on the total terpolymer weight.
Claim 7
Dependent Claim
32 words
A crosslinked terpolymer as claimed in claim 3 which also comprises a hydrocarbon elastomer in an amount of from about 3% to about 10% by weight, based on the total terpolymer weight.
Claim 8
Dependent Claim
94 words
A process for producing a crosslinked terpolymer comprising reacting in the presence of a metathesis catalyst from about 20% to about 80% by weight, based on total terpolymer weight, or repeating units derived from dicyclopentadiene, from about 10% to about 50% by weight of repeating units derived from tricyclopentadiene, and from about 10% to about 50% by weight of repeating units derived from tetracyclododecene or derivatives of tetracyclododecene, having the general formula: wherein R₁-R₂ denote the same or different hydrogen atoms or lower alkyl and alkylene groups having from 1 to 10 carbon atoms.
Claim 9
Dependent Claim
94 words
A process for producing a crosslinked terpolymer comprising reacting in the presence of a metathesis catalyst from about 20% to about 80% by weight, based on total terpolymer weight, or repeating units derived from dicyclopentadiene, from about 10% to about 50% by weight of repeating units derived from tricyclopentadiene, and from about 10% to about 50% by weight of repeating units derived from tetracyclododecene or derivatives of tetracyclododecene, having the general formula: wherein R₁-R₂ denote the same or different hydrogen atoms or lower alkyl and alkylene groups having from 1 to 10 carbon atoms.
References Cited (Backward Citations)
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