Patent ID: 6395866
Filing Date: 2002-05-28
Classification: C08G,C09D

Abstract:
A polyester resin for an antifouling paint, which comprises a structural unit of the formula (I) wherein R1 is H or alkyl having 1 to 3 carbon atoms, R2 is H or methyl and n is an integer of 0-4, in a proportion of not less than 90 mol % and a metal in the main chain at a concentration of 10-300 eq/106 g, and which has an acid value of 20-1000 eq/106 g, wherein the structural unit of the formula (I) comprises a lactic acid residue in a proportion of not less than 80 mol %, and the lactic acid residue has a molar ration of an L-lactic acid residue to a D-lactic acid residue (L-lactic acid residue/D-lactic acid residue) of 1 to 9.