Patent ID: 6107391
Filing Date: 2000-08-22
Classification: C08L,C09D,D04H,D06M

Abstract:
A one-component system based on coreactive latexes which is able to lead to coatings which are crosslinkable at room temperature and post-crosslinkable by heat treatment, the said system consisting essentially of the mixture of two separately prepared particle dispersions (A) and (B), each obtained by aqueous emulsion polymerization of a monomer composition A and B, respectively,(a) at least one free-radically polymerizable ethylenically unsaturated monomer comprising a functional group ##STR8## where X represents O or S, which enters into the monomer composition A; and(b) at least one free-radically polymerizable ethylenically unsaturated monomer comprising an aldehyde or masked aldehyde functional group selected from acetal, mercaptal, mercaptol, dioxolane and dithiolane, which enters into the monomer composition B, the proportions and members of (A) and (B) providing said mixture with the capability of yielding a film having a higher degree of cross-linking at 23.degree. C. and a higher breaking stress than either (A) or (B) alone.