SYNTHETIC COPOLYMER SURGICAL ARTICLES AND METHOD OF MANUFACTURING THE SAME

SYNTHETIC COPOLYMER SURGICAL ARTICLES AND METHOD OF MANUFACTURING THE SAME A triblock copolymer having a proportion of units having the formula: < IMG > (I) as the end blocks, said formula I as an end block having a hydrogen atom attached to the terminal oxygen atom, and the formula (I) random...

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Bibliographische Detailangaben
Hauptverfasser:	CASEY, DONALD J, ROBY, MARK S
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON 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 PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	SYNTHETIC COPOLYMER SURGICAL ARTICLES AND METHOD OF MANUFACTURING THE SAME A triblock copolymer having a proportion of units having the formula: < IMG > (I) as the end blocks, said formula I as an end block having a hydrogen atom attached to the terminal oxygen atom, and the formula (I) randomly combined with a proportion of units having the formula: < IMG > (II) as the middle block finds particular advantageous use in manufacturing absorbable monofilament sutures and other surgical articles. A surgical article is manufactured from a synthetic absorbable copolymer formed by copolymerizing glycolide with 1,3- dioxan-2-one (trimethylene carbonate) wherein a combination of the monomers is substantially completely polymerized before the addition of the other monomer in the presence of a difunctional initiator at or below about 180.degree.C; glycolide is added and the temperature increased up to about the melting point of poly glycolide to form a triblock copolymer with a proportion of units having the formula: < IMG > as the end blocks, and the formula (I) randomly combined with a proportion of units having the formula: < IMG > (II) as the middle block.