Patent ID: 7144975

Claim:
An unsaturated, amorphous polyesters, comprising: at least one α,β-unsaturated dicarboxylic acid component; and one alcohol component, wherein the alcohol component comprises a dicidol mixture of isomeric compounds 3,8-bis(hydroxymethyl)-tricyclo[5.2.1.0 2,6 ]decane, 4,8-bis(hydroxymethyl)-tricyclo [5.2.1.0 2,6 ]decane, and 5,8-bis-hydroxymethyl)tricyclo[5.2.1.0 2,6 ]decane, wherein each isomeric compound is present in the dicidol mixture in a proportion of from 20 to 40% and a sum of the three isomeric compounds is from 90 to 100%, and wherein at least 5% of the dicidol mixture is present in the alcohol component of the polyester.