C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
252/100, 252/103
C08G 61/08 (2006.01)
Patent
CA 1256854
ABSTRACT OF THE DISCLOSURE A catalyst comprising a mixture of WCl6 and WOCl4 is prepared by controlled oxidation of WCl6 using, as an oxygen donor, t-butanol, water vapor, a hydrated inorganic salt or a wet molecular sieve. The product is an effective catalyst for ring opening polymerization of norbornene-type cycloolefins.
495524
Fetherstonhaugh & Co.
Hercules Incorporated
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