C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/152
C08G 18/38 (2006.01) C08G 18/00 (2006.01) C08G 18/22 (2006.01)
Patent
CA 1288192
ABSTRACT OF THE DISCLOSURE An improved process for the copolymerization of a mixture of a bicyclic amide acetal and a polyisocyanate comprising carrying out the copolymerization reaction at a temperature in the range of from about ambient temperature up to about 200°C. in the presence of a catalytic amount of a salt of a metal selected from the group consisting of bismuth, lead, mercury, copper, vanadium, cobalt, nickel, potassium, zinc and antimony is described.
548187
Ashland Oil Inc.
Goel Anil B.
Gowling Lafleur Henderson Llp
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