发明名称 Electrodepositable coating compositions exhibiting resistance to cratering
摘要 The present invention relates to electrodepositable coating compositions that produce cured coatings that exhibit resistance to cratering. The coating compositions include an active hydrogen-containing cationic salt group-containing polymer; and 0.1 to 20 percent by weight, based on the total weight of resin solids in the coating composition, of an ungelled acrylic polymer.
申请公布号 US8945365(B2) 申请公布日期 2015.02.03
申请号 US201213548499 申请日期 2012.07.13
申请人 PPG Industries Ohio, Inc. 发明人 VanBuskirk Ellor J.;Swanger Joseph;Wilson Craig
分类号 C09D163/00;C25D9/02 主分类号 C09D163/00
代理机构 代理人 Passerin, Esq. Alicia
主权项 1. An electrodepositable coating composition comprising: (a) an active hydrogen-containing cationic salt group-containing polymer; and (b) 0.1 to 20 percent by weight, based on the total weight of resin solids in the coating composition, of a cationic salt group-containing ungelled acrylic polymer, different from (a), that comprises a reaction product of an ethylenically unsaturated monomer composition comprising: (i) a hydroxy-functional ethylenically unsaturated monomer;(ii) at least 10 percent by weight, based on the total weight of the ethylenically unsaturated monomer composition, of an amine-functional ethylenically unsaturated monomer;(iii) 10 to 40 percent by weight, based on the total weight of the ethylenically unsaturated monomer composition, of an alkyl(meth)acrylate having at least 8 carbon atoms in the alkyl group; and at least one of:(iv) 1 to 20 percent by weight, based on the total weight of the ethylenically unsaturated monomer composition, of an alkyl(meth)acrylate having less than 8 carbon atoms in the alkyl group, and(v) 1 to 30 percent by weight, based on the total weight of the ethylenically unsaturated monomer composition, of a vinyl aromatic monomer.
地址 Cleveland OH US