Patent ID: 8318893
Filing Date: 2012-11-27
Classification: B01J,C08G

Abstract:
1. An aliphatic polyester resin comprising at least an aliphatic dicarboxylic acid unit represented by the following formula (1); an aliphatic diol unit represented by the following formula (2); at least one aliphatic hydroxycarboxylic acid unit selected from the group consisting of an aliphatic hydroxycarboxylic acid unit represented by the following formula (3) and an aliphatic hydroxycarboxylic acid unit represented by the following formula (4); and at least one aliphatic unsaturated di-and/or tri-carboxylic acid unit selected from the group consisting of an aliphatic unsaturated dicarboxylic acid unit represented by the following formula (5), an aliphatic unsaturated tricarboxylic acid unit represented by the following formula (6) and an aliphatic unsaturated tricarboxylic acid unit represented by the following formula (7), wherein the total amount of units represented by the formula (3), the formula (4), the formula (5), the formula (6) and the formula (7) is from 0.0010 to 0.50 mol % to 100 mol % of the total amount of all units in the aliphatic polyester resin, and the total of the units represented by the formula (3) and the formula (4) is from 1.0 to 7.0 in terms of molar ratio to the total of the units represented by the formula (5), the formula (6) and the formula (7) wherein R 1 represents an aliphatic saturated hydrocarbon group having from 0 to 40 carbon atoms, wherein R 2 represents an aliphatic hydrocarbon group having from 2 to 10 carbon atoms, wherein R 3 represents an aliphatic hydrocarbon group having from 1 to 20 carbon atoms, wherein R 4 represents an aliphatic hydrocarbon group having from 1 to 20 carbon atoms, wherein R 5 represents an aliphatic hydrocarbon group having from 2 to 20 carbon atoms, having at least one double bond, wherein the formula (6) and the formula (7) are geometric isomers regarding double bond, the formula (6) represents a trans form and the formula (7) represents a cis form, r and s each independently are an integer of from 0 to 17 R 8 represents hydrogen or an aliphatic hydrocarbon group having from 1 to 17 carbon atoms.