Moisture-curing one-part polyurethane adhesive for wood

C - Chemistry – Metallurgy – 09 – J

Patent

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C09J 175/04 (2006.01)

Patent

CA 2279146

A moisture curing one-part polyurethane adhesive of the invention having good bonding to wood comprises an isocyanate-terminated prepolymer having an isocyanate content of from about 10 % to about 20 % by weight, dimorpholinodiethyl ether in an amount of from about 0.1% by weight to about 3.0 % by weight as a catalyst, and from about 0.1 % by weight to about 2.0 % by weight of fumed silica. In another embodiment, a curable polyurethane adhesive is provided that has good bonding to wood and comprises an isocyanate-terminated prepolymer having an isocyanate content of from about 10 % to about 20 % by weight, and dimorpholinodiethyl ether in an amount of from about 0.4 % by weight to about 3.0 % by weight as a catalyst.

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