Patent ID: 6149970
Filing Date: 2000-11-21
Classification: C08L,C09D

Abstract:
A method for producing a temporary protective coating, comprising:applying an aqueous coating medium to a substrate, wherein the aqueous coating medium comprises as binder vehicle, in the form of an aqueous polymer dispersion,A) 50 to 90% by weight of one or more thermoplastic copolymers of at least one C.sub.2 -C.sub.4 olefin and at least one vinyl ester of a C.sub.2 -C.sub.11 monocarboxylic acid, wherein the at least one olefin and the at least one vinyl ester are present in a ratio by weight of 10:90 to 40:60 and together make up at least 80% by weight of the copolymers,B) 10 to 50% by weight of one or more thermoplastic (meth)acrylic copolymers which are free from comonomers containing nitrile and amide groups, and at least 50% by weight of which consists of (meth)acrylic acid esters of C.sub.1 -C.sub.18 alcohols, andC) 0 to 30% by weight of one or more copolymers which are different from A) and B),wherein the percentages by weight are given with respect to resin solids in each case and add up to 100% by weight, andwherein a stoved outer lacquer coat of a motor vehicle lacquer coating serves as a substrate.