摘要:
The invention relates to a coating composition comprising a) a polyacrylate polyol obtainable by polymerization of olefinically unsaturated monomers wherein at least 40 weight-% of the monomers comprises linear or branched alk(en)yl or alk(en)ylene groups having at least 4 carbon atoms; b) a polyester polyol obtainable by esterification of building blocks having ester-forming functional groups wherein at least 30 weight-% of the building blocks comprises linear or branched alk(en)yl or alk(en)ylene groups with at least 4 carbon atoms per ester-forming functional group, the polyester polyol having a hydroxy value above 280 mg KOH/g and a hydroxy functionality of at least 2, and c) an isocyanate-functional crosslinker.
摘要:
The invention relates to a coating composition comprising a) a polyacrylate polyol obtainable by polymerization of olefinically unsaturated monomers wherein at least 40 weight-% of the monomers comprises linear or branched alk(en)yl or alk(en)ylene groups having at least 4 carbon atoms; b) a polyester polyol obtainable by esterification of building blocks having ester-forming functional groups wherein at least 30 weight-% of the building blocks comprises linear or branched alk(en)yl or alk(en)ylene groups with at least 4 carbon atoms per ester-forming functional group, the polyester polyol having a hydroxy value above 280 mg KOH/g and a hydroxy functionality of at least 2, and c) an isocyanate-functional crosslinker.
摘要:
Disclosed is a composition containing (i) 1-50 wt. % of a water-soluble, branched polyesteramide, (ii) 1-50 wt. % of a solvent selected from the group of alcohols, ethers, and ether alcohols having a boiling point in the range of 130° to 250° C., and (iii) 0-98 wt. % of water, and its use as an additive to water borne base coat compositions to reduce or eliminate problems of underspray/overspray.
摘要:
The current invention provides a film forming binder comprising 45 to 99 wt. % of a polyester polyol comprising cycloaliphatic moieties, and 55 to 1 wt. % of a polyurethane polyol comprising cyclic moieties, where the Tg of the polyurethane polyol is higher than the Tg of the polyester polyol. Also disclosed are coating compositions comprising such film forming binders and a crosslinker, a process for the curing of such coating compositions, and the use of such coating compositions on substrates.