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US 5,093,441 AGranted
Polymerization of norbornene derivatives
AssigneeShell Oil Company
InventorsWillem Sjardijn, Johannes J. M. Snel
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Abstract
A process for the production of thermoset polymers comprising contacting at least one monomer of the formulae: ##STR1## with a metathesis catalyst system which comprises a tungsten catalyst and a tin or silicon hydride cocatalyst.
Claims18
A process comprising contacting at least one monomer of the formulae:
- ##STR4## with a ring-opening metathesis catalyst system comprising a tungsten catalyst which is the reaction product of a tungsten halide and a phenol and a cocatalyst selected from triorgano tin hydrides and silicon hydrides, under conditions effective for polymerization of said at least one monomer.
A composition comprising at least one of compounds represented by formulas I and II and ##STR6## a tungsten halide.
Dependencies are inferred from the claim text.