Patent ID: 7498379

Claim:
A carbodiimide containing the following structure: with the following meanings for n, R 1 , R 2 , R 3 R 4 , R 5 , R 6 and R 7 : n: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20, R 1 : aliphatic, cycloaliphatic, araliphatic, or aromatic, if appropriate substituted, if appropriate branched-chain radical, R 2 : aliphatic, cycloaliphatic, araliphatic, or aromatic, if appropriate substituted, if appropriate branched-chain radical, R 3 : aliphatic, cycloaliphatic, araliphatic, or aromatic, if appropriate substituted, if appropriate branched-chain radical, R 4 : aliphatic, cycloaliphatic, araliphatic, or aromatic, if appropriate substituted, if appropriate branched-chain radical, R 5 : methyl-, ethyl, —O—CH 3 , —O—CH 2 —CH 3 , —O—CH(CH 3 ) 2 , —O—C(CH 3 ) 3 , or —O—CH 2 —CH 2 —O—CH 3 R 6 : methyl-, ethyl, —O—CH 3 , —O—CH 2 —CH 3 , —O—CH(CH 3 ) 2 , —O—C(CH 3 ) 3 , or —O—CH 2 —CH 2 —O—CH 3 R 7 : methyl-, ethyl, —O—CH 3 , —O—CH 2 —CH 3 , —O—CH(CH 3 ) 2 , —O—C(CH 3 ) 3 , or —O—CH 2 —CH 2 —O—CH 3 .