| abstract |
FIELD: chemistry. n SUBSTANCE: linked branched polyester polymer is described, obtained by the free-radical polymerization of the double bond of the first unsaturated polyester prepolymer and the double bond of the second unsaturated polyester prepolymer, wherein each prepolymer independently includes: a) a segment of polyol and b) an unsaturated polycarboxylic acid, and/or its anhydride, and/or ester; and Tg of the branched polyester polymer is 25°C or less. A coating including the above polyester and its crosslinking agent are also described. A substrate coated with the at least partially above-mentioned coating is described. n EFFECT: producing a soft-touch coating that has an improved hardness, a friction coefficient, an abrasion resistance, and a surface roughness. n 21 cl, 6 ex |