Patent ID: 8486219

Claim:
A process for preparing a laminate, comprising: (a) providing a dried overlay and a base sheet wherein at least one of the dried overlay and the base sheet comprises a resin-impregnated, opaque, cellulose pulp-based sheet; (b) applying a surface treatment to the dried overlay to form a treated overlay, wherein the surface treatment consists of a fluorourethane reaction product of (1) at least one diisocyanate, polyisocyanate, or mixture of polyisocyanates having at least three isocyanate groups per molecule, (2) at least one perfluoroalkyl compound having at least one Zerewitinoff hydrogen in an amount sufficient to react with at least 40% of the isocyanate groups in the diisocyanate or polyisocyanate, (3) at least one polyethylene glycol methyl ether in an amount sufficient to react with at least 30% of the isocyanate groups in the diisocyanate or polyisocyanate, and, (4) water in an amount sufficient to react with at least 5% of the isocyanate groups in the diisocyanate or polyisocyanate; (c) drying the treated overlay from step (b); and (d) laminating the dried treated overlay from step (c) to the base sheet.