Patent ID: 6403756
Filing Date: 2002-06-11
Classification: C08G

Abstract:
A biodegradable high molecular weight aliphatic polyester comprising an ester section A represented by the following formula (1):(â€”COâ€”Râ€”COâ€”Oâ€”R2â€”Oâ€”)pâ€ƒâ€ƒ(1) wherein R1 represents a divalent aliphatic group having 1-12 carbon atoms, R2 represents a divalent aliphatic group having 2-12 carbon atoms and p is a molar fraction of the polyester fraction of the formula (1) contained in the polyester, and an ester section B represented by the following formula (2): wherein R1 represents a divalent aliphatic group having 1-12 carbon atoms, R3 represents an aliphatic group having 1-18 carbon atoms and r is a molar fraction of the polyester fraction of the formula (2) contained in the polyester, the molar fraction r of said ester fraction B being in the range of 0.001-0.10.