Cold curable isocyanate adhesives with reduced foaming

Details Cold curable isocyanate adhesives with reduced foaming Cold curable isocyanate adhesives with reduced foaming

B - Operations, Transporting

31

B

B31B 1/60 (2006.01) B32B 27/00 (2006.01) B32B 27/40 (2006.01) C08G 18/12 (2006.01) C08G 18/50 (2006.01) C08J 3/00 (2006.01) C08K 5/09 (2006.01) C08K 5/10 (2006.01) C08K 5/103 (2006.01) C08L 75/00 (2006.01) C08L 91/00 (2006.01) C09J 175/04 (2006.01) C09J 175/08 (2006.01) C08K 3/34 (2006.01)

Patent

CA 2472767

Moisture activated polyisocyanate adhesives comprising isocyanate terminated prepolymers that provide rapid curing at relatively low temperatures. The adhesives have reduced tendency toward foaming and exhibit excellent gap filling characteristics. The adhesive compositions are suitable for use as wood adhesives, and are especially suitable for engineered composite lumber applications.

L'invention concerne des adhésifs de polyisocyanate activés par l'humidité comprenant des prépolymères à terminaison isocyanate permettant d'obtenir un durcissement rapide à des températures relativement faibles. Ces adhésifs présentent une tendance au moussage réduite et d'excellentes caractéristiques de remplissage. Ces compositions adhésives peuvent servir d'adhésifs pour bois et conviennent particulièrement à des applications utilisant du bois composite de haute technologie.

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