Title:
【発明の名称】ROMPポリマーの過酸化物架橋
Document Type and Number:
Japanese Patent JP3336013
Kind Code:
B2
Abstract:
Methods of forming polycycloolefins having high crosslink density are disclosed. Olefins are polymerized via a metathesis mechanism in the presence of a crosslinking agent and a catalyst. The crosslinking agent generally comprises a peroxide that decomposes into reactive species forming crosslinks during post-cure. The catalyst is a ruthenium or osmium carbene complex of the formula: wherein M is Os or Ru; R and R1 are independently selected from hydrogen or a hydrocarbon selected from the group consisting of C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkynyl, C2-C20 alkoxycarbonyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy and aryloxy; X and X1 are independently selected from any anionic ligand; and L and L1 are independently selected from any neutral electron donor. Preferably, L and L1 are trialkylphosphine ligands and at least one of the alkyl groups on the phosphine ligand may be a secondary alkyl or cycloalkyl group, especially P(isopropyl)3, P(cyclopentyl)3 and P(cyclohexyl)3. Preferred crosslinking agents are peroxides, such as t-butyl peroxide, 2,5-dimethyl-2,5-di-(tert-butylperoxy) hexyne-3, di-tert-butyl peroxide, and 2,5-dimethyl-2,5-di-(tert-butylperoxy) hexane or mixtures thereof. Olefins may be cyclic (e.g., monocyclic, bicyclic or tricyclic) or acyclic. Norbornene or norbornene derivatives are especially preferred.
Inventors:
Grubbs, Robert, H.
Woodson, Charles, Es., Junior
Woodson, Charles, Es., Junior
Application Number:
JP52131396A
Publication Date:
October 21, 2002
Filing Date:
July 03, 1996
Export Citation:
Assignee:
California Institute of Technology
International Classes:
C08F4/80; C08F2/00; C08F32/00; C08G61/08; (IPC1-7): C08G61/08; C08F4/80; C08F32/00
Domestic Patent References:
| JP5034699A |
Other References:
【文献】米国特許5342909(US,A)
【文献】米国特許5312940(US,A)
【文献】国際公開96/4289(WO,A1)
【文献】米国特許5312940(US,A)
【文献】国際公開96/4289(WO,A1)
Attorney, Agent or Firm:
Yusuke Hiraki (1 person outside)