| 摘要 |
<p>The invention concerns an aqueous polymer dispersion composition comprising for 100 parts by weight of (A) + (B) :(A) from 30 to 99 parts by weight of at least one dispersed polymer containing acetoacetoxy-type functional moieties, the said polymer having a glass transition temperature from 0 to 100 DEG C ; and(B) from 1 to 70 parts by weight of a multifunctional acrylate, said aqueous composition further containing a volatile base in an amount sufficient to convert the acetoacetoxy functionalities of (A) to enamine ones. The invention does also concern a process of preparation, a coating composition comprising the said composition as a binder, its uses in industrial coatings and a dual cure process of coating.</p> |
