Ashland, Inc.

Ashland Chemical Company

Ashland Chemical, Inc.

David E Day

Gang-Fung Chen

Thomas M Moy

Vincent J Pascarella

David K Jones

David Jones

The invention is a pressure sensitive adhesive (PSA) composition, which is the ultraviolet radiation (UV) cured reaction product of a polyester-polyether-based urethane acrylate, one or more acrylate monomers, and a UV photosensitizer. The polyester-polyether-based urethane acrylate is the reaction product of between about 50 and 90 wt-% of a polyester diol having a molecular weight ranging from about 500 to 3200; between about 10 and 50 wt-% of a polyether polyol having a molecular weight ranging from about 1000 to 6000; between about 1 and 5 wt-% of a hydroxy-functional acrylate; and a polyisocyanate.

Polyester-polyether hybrid urethane acrylate oligomer for UV curing pressure sensitive adhesives

An adhesive suitable for bonding wood is both heat curable and radio frequency (RF) curable. This adhesive is composed of an isocyanate-terminated prepolymer and hydrolyzed soy protein having a pH of at least about 9 and advantageously from about 9 to 11.5. The weight ratio of prepolymer to soy protein hydrolyzate ranges from about 70:30 to 90:10.

Heat and radio frequency-curable two-pack soy protein-based polyurethane adhesive compositions

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Columbus, OH, United States of America

David E Day