Patent ID: 7094357
Filing Date: 2006-08-22
Classification: C08G

Abstract:
1. A polyester polyol mixture which comprises (1) from 10 to 90 parts by weight of a polyester polyol comprising units derived from at least one aliphatic dicarboxylic acid (A) having n carbon atoms wherein n is from 10 to 20 and at least one aliphatic diol having k carbon atoms wherein k is from 2 to 12, (2) from 90 to 10 parts by weight of a polyester polyol comprising units derived from at least one aliphatic dicarboxylic acid (B) having m carbon atoms wherein m is from 2 to 9 and at least one aliphatic diol having k carbon atoms wherein k is from 2 to 12, (3) from 5 to 100 parts by weight of a compatibilizing agent comprising a polyester polyol which comprises units derived from: at least one aliphatic dicarboxylic acid (A) having n carbon atoms wherein n is from 10 to 20, at least one aliphatic dicarboxylic acid (B) having m carbon atoms wherein m is from 2 to 9, and at least one aliphatic diol having k carbon atoms wherein k is from 2 to 12; in which n-m ≧4 and the molar ratio of ingredient (A) to ingredient (B) in the compatibilizing agent is from 90:10 to 10:90 and (4) from 0 to 50 parts by weight of a polyalkylene glycol, provided that the sum of ingredients (1) and (2) is 100 parts by weight and n-m ≧4.