Patent Number: 6,169,140

Title: Moisture-curable compositions containing polyisocyanates and polyacrylates having alkoxysilane groups

Abstract: The present invention relates to moisture-curable compositions containing a mixture of a) a polyisocyanate and b) a polyacrylate resin which has an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight, based on the weight of the polyacrylate resin, and contains less than 0.2% by weight of hydroxy groups, based on the weight of the polyacrylate resin, wherein components a) and b) are present in amounts sufficient to provide an equivalent ratio of isocyanate groups to alkoxy groups, which are bound to Si, of 1.0:0.05 to 1.0:2.5. The present invention also relates to coatings, sealants and adhesives prepared from these compositions.

Inventors: Roesler; Richard R. (Wexford, PA), Shaffer; Myron W. (New Cumberland, WV)

Assignee: Bayer Corporation

International Classification: C08G 18/28 (20060101); C08G 18/62 (20060101); C08G 18/00 (20060101); C08G 18/30 (20060101); C08G 18/79 (20060101); C08G 18/71 (20060101); C08J 003/00 (); C08K 003/20 (); C08L 083/00 (); C08L 083/04 (); C08G 077/04 ()

Expiration Date: 01/02/2018