C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/162, 117/195
C08G 18/00 (2006.01) C08F 283/00 (2006.01) C08G 18/16 (2006.01) C08G 18/22 (2006.01) C08G 18/79 (2006.01)
Patent
CA 1139037
ABSTRACT Potassium salt of 2-pyrrolldinone is used as a catalyst to cyclotrimerize an organic diisocyanate, yielding a mixture of mono- meric cyclotrimerized product (isocyanurate) and oligomers thereof, soluble in common organic solvents and vinyl monomers. The cata- lyst can be used to make one-shot isocyanurate-crosslinked polyure- thanes. Prepolymers and moisture-curing coating compositions can also be prepared.
387932
Gowling Lafleur Henderson Llp
Uniroyal Chemical Co./uniroyal Chemical Cie.
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