H.b. Fuller Company

Anthony J Ostlund

Wayne G Eklund

Stephen G Rippe

Dorian P Nelson

Sudipto Das

Marlen A Valverde

XiaJi Dai

Henry P Meyer

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

A polyurethane adhesive composition that includes a polyurethane prepolymer that includes the reaction product of a first polyol component that includes glycerol monoester and a polyisocyanate, and a second polyol. A polyurethane prepolymer that includes the reaction product of glycerol monoester, a hydroxy functional triglyceride, and a polyisocyanate.

Reactive polyurethane adhesive composition, polyurethane prepolymer, and flexible laminates including the same

Disclosed is an article that includes a first substrate, a second substrate, and a re-workable adhesive composition, the first substrate being bonded to the second substrate through the adhesive composition. The adhesive composition is derived from a moisture curable polyurethane hot melt adhesive composition that includes a polyurethane prepolymer that includes the reaction product of a first crystalline polyester polyol having a number average molecular weight of from at least 5500 grams per mole (g/mol) to about 20,000 g/mol and a melting point of at least 40&#xb0; C., and a polyisocyanate. The re-workable adhesive composition is cleanly removable from at least one of the first substrate and the second substrate after conditioning the article at a temperature of from at least 60&#xb0; C. to no greater than 100&#xb0; C. for a period of about 30 minutes.

Re-workable moisture curable hot melt adhesive composition, methods of using the same, and articles including the same

Growing community of inventors

Centerville, MN, United States of America

Anthony J Ostlund