Coating film having a low surface energy which are prepared therefrom and the aqueous polyurethane dispersion, a stable including a silicone and / or fluorine, with a silane that can be cured at room temperature at the end

摘要

(57) very low coating film on the surface energy is provided by the introduction of silicone portion and [summary] / or fluorine. Emulsifying group or dispersing groups include carboxyl groups, among others, an aqueous dispersion of a polyurethane composition which molecular chains extending from the outside and having a terminal silyl groups that undergo hydrolysis and / or silyl groups hydrolyzable is provided. In addition, containing no organic solvents, substantially comprising water resistance and solvent resistance by curing, the tough, abrasion with less, polyurethane dispersion to form a stable polyurethane film to light is preferably provided . Such films are useful in marine antifouling paints. Compound R _f R _'f CFCOOCH ₂ C (R) (CH ₂ OH) ₂ is provided.