Patent ID: 8969489
Filing Date: 2015-03-03
Classification: C08G,C08K,C09D,H01S

Abstract:
1. A liquid thermosetting coating composition comprising an aliphatic polycarbonate resin and a cross linking compound, said aliphatic polycarbonate resin derived from aliphatic hydroxyl containing compounds in the presence of a catalyst, said aliphatic hydroxyl compounds comprising: A. 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD); and B. 1,4-cyclohexane dimethanol (CHDM); and wherein the catalyst used to obtain the aliphatic polycarbonate is present in an amount ranging from 0.0001 wt % to 0.03 wt % based on the total weight of the aliphatic hydroxyl compounds; and wherein molar ratio of TMCD to CHDM residues present in the polycarbonate resin is: (i) in the range of 8:2 to 3:7 if the only aliphatic hydroxyl compounds used are TMCD and CHDM or (ii) otherwise is in the range of 9:1 to 1:9.