| 摘要 |
Composition used, in particular, for coating exterior surfaces comprises in successive or simultaneous addition an aqueous phase comprising solution or dispersion of polyol(s) with glass transition temperature (Tg) no greater than 100 deg C, advantageously no greater than 50 deg C; and an isocyanate sub-composition already or to be emulsified in the same aqueous phase. Also claimed are use of said composition for coating of variable porosity; and method for preparation of said coating. |
