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US 5,973,085 AGranted
Monomers and composition which can be crosslinked and crosslinked polymers
AssigneeCiba Specialty Chemicals Corporation
InventorsAndreas Muhlebach, Andreas Hafner, Paul Adriaan Van Der Schaaf
Life of this patent
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Abstract
Compounds of the formula I (A).sub.n --B (I) in which A is the radical of a strained cycloolefin, B is a direct bond or an n-valent bridging group and n is an integer from 2 to 8, with the exception of 1,2-bisnorbornenyl-ethane and norbornenecarboxylic acid norbornenemethyl ester. The compounds of the formula I can be polymerized with one-component catalysts (ring-opening metathesis polymerization).
Claims32
A composition comprising
- a) at least one compound of formula I
- (A).sub.n --B (I)
- in which A is the radical of a strained cycloolefin, B is a direct bond or an n-valent bridging group, and n is an integer from 2 to 8, and
- b) a catalytic amount of a one-component catalyst for metathesis polymerization which can be activated by heat or radiation selected from the group consisting of ruthenium and osmium compounds which contain at least one phosphine group, at least one photolabile ligand, and optionally neutral ligands bonded to the metal atom, a total of 2 to 5 ligands being bonded, and which contain acid anions for charge balancing.
1 more element
Dependencies are inferred from the claim text.