THERMOFORMABLE DUAL NETWORK HYDROGEL COMPOSITIONS

A thermoformable dual network hydrogel composition formed from a cross-linked polymer derived from one or more olefinically unsaturated polymerizable carboxylic monomers and one or more thermoplastic polyurethane compositions is disclosed. The hydrogel exhibits high elastic modulus and Yield Stress...

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Bibliographische Detailangaben
Hauptverfasser:	BAXTER, JAMES R, MARCHANT, NANCY S, STANSBREY, WILLIAM A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	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 PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A thermoformable dual network hydrogel composition formed from a cross-linked polymer derived from one or more olefinically unsaturated polymerizable carboxylic monomers and one or more thermoplastic polyurethane compositions is disclosed. The hydrogel exhibits high elastic modulus and Yield Stress at low shear, and a moderate but significant adhesion force. The hydrogel composition provides useful materials for personal care, health care, medical and pharmaceutical applications, among others. L'invention concerne une composition thermoformable d'hydrogel à double réseau formée à partir d'un polymère réticulé dérivé d'un ou plusieurs monomères carboxyliques polymérisables oléfiniquement insaturés et d'une ou de plusieurs compositions de polyuréthane thermoplastiques. L'hydrogel présente un module d'élasticité élevé et une limite apparente d'élasticité élevée à faible cisaillement, ainsi qu'une force d'adhérence modérée mais significative. La composition d'hydrogel fournit des matériaux utiles pour des applications de soins personnels, de soins de santé, médicales et pharmaceutiques, entre autres.