Patent ID: 6991851

Claim:
A process comprising the step of: providing a composite article comprising 1) a nonporous substrate having on at least one surface thereof 2) a dry-strippable protective dried water-borne polyurethane coating composition, said polyurethane composition being free of foam and free of polymerizable acrylate functionality, said composition comprising a release additive including one or both of (a) a releasing co-solvent having a boiling point greater than 100° C., and (b) a dispersion of a metal salt of stearic acid or a dispersion of a wax, said polyurethane coating composition being a film, and wherein said polyurethane comprises one or more of a silyl-terminated polyurethane, a sulfopoly(ester-urethane) which optionally is terminated by one or more silyl groups, and a sulfonate functional polyurethane urea, and 3) removing said protective film by stripping it from said substrate in the absence of a stripping agent.