Patent ID: 8287974

Claim:
A laminate comprising: a first layer comprising a release substrate having an adhesion-resistant portion formed by contacting at least a portion of an absorbent substrate with a borate cross-linking agent and then contacting the cross-linking agent-contacted portion of the absorbent substrate with a polyol polymer that is cross-linked by the cross-linking agent, in an amount sufficient to provide adhesion resistance to the contacted portion of the absorbent substrate, wherein a mass ratio of polyol to borate is in the range of about 1:10 to about 10:1, and the adhesion-resistant portion consists of a cross-linked polyol polymer in an amount of about 1 to about 200 pounds per ton of substrate having a cross-link density gradient wherein a percentage of polymer cross-linking is higher at the absorbent substrate than at a polymer surface furthest from the absorbent substrate; and a second layer comprising an adjacent article having an adhesive in contact with the adhesion-resistant portion of the release substrate.