POLYMER, IN VIVO DEGRADABLE MATERIAL, AND USE

A polymer having a satisfactory balance between in vivo degradability and satisfactory mechanical properties, which is an A BA type polymer comprising a segment A and a segment A each having a modified amino acid and a segment B consisting of polyethylene glycol with a number-average molecular weigh...

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Main Authors IWASAKI, HIROSHI, OGURA, ATSUHIKO, TANAKA, SHINJI
Format Patent
LanguageEnglish
French
Japanese
Published 30.11.2000
Edition7
Subjects
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Abstract A polymer having a satisfactory balance between in vivo degradability and satisfactory mechanical properties, which is an A BA type polymer comprising a segment A and a segment A each having a modified amino acid and a segment B consisting of polyethylene glycol with a number-average molecular weight of 8,000 or higher bonded at one end to the segment A and at the other end to the segment A , and has a number-average molecular weight of 10,000 to 600,000; an in vivo degradable material which comprises the polymer; and a film for preventing tissue adhesion, an artificial dura mater, a suture, an implant preparation, or a sustained-release drug base each comprising the degradable material. Cette invention concerne un polymère qui présente un équilibre satisfaisant entre sa capacité à se désagréger in vivo et ses propriété mécaniques, et qui consiste en un polymère de type A BA . Ce polymère comprend un segment A et un segment A possédant chacun un acide aminé modifié, ainsi qu'un segment B se composant d'un polyéthylèneglycol qui possède un poids moléculaire moyen en nombre de 8000 ou plus, et qui est connecté au segment A par une extrémité et au segment A par l'autre. Le polymère possède un poids moléculaire moyen en nombre de 10000 à 600000. Cette invention concerne également un matériau dégradable in vivo qui comprend ce polymère, ainsi qu'un film empêchant l'adhésion des tissus, une dure-mère artificielle, une suture, une préparation pour implant et une base médicamenteuse à diffusion prolongée qui contiennent chacun ce matériau dégradable.
AbstractList A polymer having a satisfactory balance between in vivo degradability and satisfactory mechanical properties, which is an A BA type polymer comprising a segment A and a segment A each having a modified amino acid and a segment B consisting of polyethylene glycol with a number-average molecular weight of 8,000 or higher bonded at one end to the segment A and at the other end to the segment A , and has a number-average molecular weight of 10,000 to 600,000; an in vivo degradable material which comprises the polymer; and a film for preventing tissue adhesion, an artificial dura mater, a suture, an implant preparation, or a sustained-release drug base each comprising the degradable material. Cette invention concerne un polymère qui présente un équilibre satisfaisant entre sa capacité à se désagréger in vivo et ses propriété mécaniques, et qui consiste en un polymère de type A BA . Ce polymère comprend un segment A et un segment A possédant chacun un acide aminé modifié, ainsi qu'un segment B se composant d'un polyéthylèneglycol qui possède un poids moléculaire moyen en nombre de 8000 ou plus, et qui est connecté au segment A par une extrémité et au segment A par l'autre. Le polymère possède un poids moléculaire moyen en nombre de 10000 à 600000. Cette invention concerne également un matériau dégradable in vivo qui comprend ce polymère, ainsi qu'un film empêchant l'adhésion des tissus, une dure-mère artificielle, une suture, une préparation pour implant et une base médicamenteuse à diffusion prolongée qui contiennent chacun ce matériau dégradable.
Author OGURA, ATSUHIKO
TANAKA, SHINJI
IWASAKI, HIROSHI
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Snippet A polymer having a satisfactory balance between in vivo degradability and satisfactory mechanical properties, which is an A BA type polymer comprising a...
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SubjectTerms 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
Title POLYMER, IN VIVO DEGRADABLE MATERIAL, AND USE
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