Patent ID: 7326804

Claim:
A plasticizer composition comprising: 20-65 wt% of a compound represented by formula 1, 20-65 wt% a compound represented by formula 2, and 1-40 wt% of a compound represented by formula 3: R 1 OCO—(CH 2 ) 2 —O—(CH 2 ) 2 —O—(CH 2 ) 2 —OCOR 2 (1) R 3 OCO—(CH 2 ) 2 —O—(CH 2 ) 2 —O—(CH 2 ) 2 —OCOR 4 (2) R 5 OCO—(CH 2 ) 2 —O—(CH 2 ) 2 —O—(CH 2 ) 2 —OCOR 6 (3) where R 1 is a C3-C12 alkyl group, R 2 is a C6-C10 aryl group, R 3 and R 4 are each independently a C3-C12 alkyl group, and R 5 and R 6 are each independently a C6-C10 aryl group.