COPOLYMER OF LACTONE AND CARBONATE AND PROCESS FOR THE PREPARATION OF SUCH A COPOLYMER

PCT No. PCT/NL92/00234 Sec. 371 Date Jun. 17, 1994 Sec. 102(e) Date Jun. 17, 1994 PCT Filed Dec. 21, 1992 PCT Pub. No. WO93/13154 PCT Pub. Date Jul. 8, 1993.A copolymer of a lactone and a polycyclic carbonate is prepared by heating a monomer of a lactone with a polycyclic carbonate having two cyclic...

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Hauptverfasser:	PENNINGS, ALBERTUS, JOHANNES, GRIJPMA, DIRK, WYBE, NIJENHUIS, ATZE, JAN, KROEZE, ERIK
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HETEROCYCLIC COMPOUNDS 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 CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	PCT No. PCT/NL92/00234 Sec. 371 Date Jun. 17, 1994 Sec. 102(e) Date Jun. 17, 1994 PCT Filed Dec. 21, 1992 PCT Pub. No. WO93/13154 PCT Pub. Date Jul. 8, 1993.A copolymer of a lactone and a polycyclic carbonate is prepared by heating a monomer of a lactone with a polycyclic carbonate having two cyclic structures including a carbonate group at elevated temperatures less than 200 degrees Centigrade in the presence of a catalyst. The described copolymers evidence excellent mechanical properties, good resorption velocity and do not disintegrate upon degradation into materials of high crystallinity.