| 摘要 |
A solvent-free polymerizable composition comprising: a) at least one Diels-Alder adduct of (a1) unsubstituted or substituted cycloolefins and (a2) unsubstituted or substituted 1,3-cyclopentadienes, which adduct has a low content of unsubstituted or substituted cyclopentadienes, and b) a catalytically active amount of a ruthenium catalyst for metathesis polymerization, which composition comprises, based on the Diels-Alder adduct, not more than 0.1 % by weight of cyclopenta-1,3-diene or substituted cyclopenta-1,3-diene and from 0.05 to 0.3 % by weight of ruthenium catalyst; with the exception of dicyclopentadiene in combination with 0.3 % by weight (4-isopropyltolyl)RuCl2[P(C6H11)3]. The compositions can be used to produce mouldings having very good mechanical properties. |
