| http://www.w3.org/ns/prov#value | - A polyester of the present invention is a polyester comprising at least a lactic acid unit, a dibasic acid unit and a glycol unit, wherein the dibasic acid unit contains dimer acid, and the polyester has a glass transition temperature as measured at a temperature rising rate of 20?? C./minute using a differential scanning calorimeter, of ???70 to ???20?? C., a weight average molecular weight of 20
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