H.b. Fuller Company

Dorian P Nelson

Wayne G Eklund

Brian W Carlson

Anthony J Ostlund

Marlen A Valverde

Disclosed is a one-part, atmospheric curing, polyurethane adhesive composition that includes a polyurethane prepolymer that includes a reaction product of a polyol component and an isocyanate component, the polyol component comprising an unsaturated fatty acid esterified polyol comprising a reaction product of a first polyol and at least one of an ethylenically unsaturated oil and an ethylenically unsaturated fatty acid, the first polyol comprising at least three hydroxyl groups, and a % NCO of from at least 4% by weight to no greater than 7% by weight based on the weight of the prepolymer, the adhesive composition exhibiting a viscosity of no greater than 15,000 centipoise at 60&#xb0; C., and a T-peel value of greater than 40 grams per 25 millimeter in no greater than 4 hours, a method of making a laminate, and a laminate that includes a one-part, atmospheric curing, polyurethane adhesive composition.

One-part polyurethane adhesive composition, method of making a laminate, and laminate

Adhesive compositions using modified diphenylmethane diisocyanate are disclosed along with methods and articles using the adhesive compositions. The adhesive compositions are especially suited for making flexible laminates for use in food packaging.

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Saint Paul, MN, United States of America

Dorian P Nelson