Patent ID: 7931773

Claim:
A bonding agent, comprising: from about 3 to 60% by weight of the total bonding agent weight, of a first polymer, the first polymer comprising the reaction product of: a) from about 15 to 85% by weight, based on the total weight of the first polymer, of a first oligomer, wherein the first oligomer comprises the reaction product of: i. a first component that includes an epoxy functional silane having an epoxy functionality of about 1, and ii. a second component that includes monomer having an amine functionality greater than 1, reacted at a ratio such that the first oligomer contains reactive functional groups selected from primary amine, secondary amine, hydroxyl or any combination thereof; and b) from about 15 to 85% by weight, based on the total weight of the first polymer, of a second oligomer, wherein the second oligomer comprises the reaction product of i. a third component that includes a monomeric isocyanate having functionality of greater than about 1.9, ii. and a fourth component that includes a monomer having an active hydrogen, which can react with the isocyanate, wherein the first oligomer and the second oligomer are reacted in a ratio such that the second oligomer contains reactive isocyanate functionality; and the first polymer is substantially devoid of free isocyanate functionality; wherein the bonding agent is a one-component composition that exhibits an open time of at least 30 seconds.