Moisture curable, plasticized polyurethane adhesives

Details Moisture curable, plasticized polyurethane adhesives Moisture curable, plasticized polyurethane adhesives

C - Chemistry, Metallurgy

09

J

C09J 175/06 (2006.01) C08G 18/10 (2006.01) C08G 18/40 (2006.01) C08G 18/42 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2122563

ABSTRACT OF THE DISCLOSURE MOISTURE CURABLE, PLASTICIZED POLYURETHANE ADHESIVES A moisture curable polyurethane adhesive composition comprises an aromatic polyisocyanate, a polyester polyol, a functionally effective amount of a plasticizer, and an optional polyether polyol. The aromatic polyisocyanate has an isocyanate functionality that does not exceed about 2.3. The polyester polyol may be derived from the reaction of adipic acid and a diol (e.g., neopentyl glycol, diethylene glycol, 2- methyl-1,3-propane diol, 2,3-methylbutane diol, or 1,2- propylene diol) or it may be provided by a polycaprolactone diol. The adhesive compositions are particularly useful in bonding vinyl to wood.

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