公开(公告)号：US06379807B1

公开(公告)日：2002-04-30

申请号：US09707573

申请日：2000-11-07

Applicant: John D Nordstrom ,  Jun Lin

Inventor： John D Nordstrom ,  Jun Lin

IPC: B32B904

CPC classification number: C08G18/6295 ,  C08G18/4063 ,  C09D175/04 ,  Y10T428/31551 ,  Y10T428/31663 ,  C08L2666/16

Abstract: The present invention is directed to a coating composition particularly useful as a clear coating applied over a pigmented base coating, wherein the clear coating has improved resistance to marring and to acid etching when exposed to natural weathering conditions. The clear coating is particularly useful as an automotive OEM clear coating or as a refinish clear coating. The coating has two components. Component A of the coating composition includes a melamine and an acrylosilane polymer of a polymerized monomers mixture, which includes an alkyl methacrylate, an alkyl acrylate, cycloaliphatic alkyl methacrylate, cycloaliphatic alkyl acrylate, styrene or any mixture of these monomers; hydroxy alkyl methacrylate, hydroxy alkyl acrylate or any mixtures of these monomers; and a mono-ethylenically unsaturated silane monomer. Component B of the composition includes an organic polyisocyanate as a crosslinking agent.

Abstract translation: 本发明涉及一种涂料组合物，其特别可用作涂覆在着色基底涂料上的透明涂层，其中透明涂层在暴露于自然风化条件下时具有改善的耐磨性和酸蚀刻性。 透明涂层特别适用于汽车OEM透明涂层或透明涂层。 涂层有两个部件。 涂料组合物的组分A包括聚合单体混合物的三聚氰胺和丙烯硅烷聚合物，其包括甲基丙烯酸烷基酯，丙烯酸烷基酯，甲基丙烯酸环脂基烷基酯，丙烯酸环脂族烷基酯，苯乙烯或这些单体的任何混合物; 羟基烷基甲基丙烯酸酯，丙烯酸羟基烷基酯或这些单体的任何混合物; 和单烯属不饱和硅烷单体。 组合物的组分B包含作为交联剂的有机多异氰酸酯。