Patent ID: 7790782
Filing Date: 2010-09-07
Classification: C08K

Abstract:
1. A highly crystallized resin composition comprising a cyclic compound which is any one of 1,4-diketo-2,5-dihydro-3,6-diphenylpyrrolo[3,4-c]pyrrole, 1,4-diketo-2,5-dihydro-3,6-di-(p-chlorophenyl)pyrrolo[3,4-c]pyrrole, 1,4-diketo-2,5-dihydro-3,6-di-(p-methylphenyl)pyrrolo[3,4-c]pyrrole, 1,4-d-iketo-2,5-dihydro-3,6-di-(m-methylphenyl) pyrrolo[3,4-c] pyrrole and 1,4-diketo-2,5-dihydro-3-(p-methylphenyl)-6-(m-methylphenyl)pyrrolo[3,4-c-]pyrrole, together with a polyester capable of having a crystal structure, wherein said polyester is a biodegradable polyester, which is polylactic acid, and wherein a blending ratio of said cyclic compound falls in a range from 0.001 to 0.1 parts by weight per 100 parts by weight of said polyester.