Abstract
The present invention discloses a polylactide-urethane copolymer obtainable by a process, which comprises the step of contacting: an, dihydroxyl polylactide prepolymer of general formula (I) wherein: X is NH or O, R is an alkyl or an aryl group, n and n' are integer numbers which are substantially 10 the same and which are comprised in the range from 20 to 140, a diisocyanate compound of general formula (II) wherein: R' is an alkyl or an aryl group and an amine or an alcohol of general formula (III) wherein: R'' is an alkyl or an aryl group and X' is NH2 or OH 20 with the proviso that at least one of R or R'' is an aryl group.
Original language | English |
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Patent number | CN101547954 |
IPC | C08G 18/ 42 A I |
Priority date | 29/09/06 |
Publication status | Published - 30 Sept 2009 |
Externally published | Yes |