BIOLOGICALLY DECOMPOSABLE AND ABSORBABLE POLYMER AND METHOD FOR PRODUCING THE SAME

• Main Authors: NAKAJIMA NAOKI, GEN JIYOUKIYUU
• Format: Patent
• Language: English
• Published: 18.08.2005
• Edition: 7
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a biologically decomposable and absorbable polymer having fluidity and viscous, and to provide a method for producing the same. SOLUTION: This biologically decomposable and absorbable polymer comprises a copolymer of a lactide and -caprolactone, wherein the polymer has a weight-average molecular weight of 2,000 to 10,000. The method for producing the biologically decomposable and absorbable polymer comprises preparing a mixture of the lactide and the -caprolactone, adding a 2-18C alcohol compound to the mixture in an amount of 5-40(w/w)% based on the mixture, and polymerizing the lactide with the -caprolactone. COPYRIGHT: (C)2005,JPO&NCIPI