URETHANE PREPOLYMER, ADHESIVE, PATCH, ADHESIVE TAPE, WEARABLE DEVICE AND WEARABLE DEVICE KIT

To provide a urethane prepolymer capable of obtaining an adhesive having excellent moisture permeability and achieving both low adhesion to the skin and high adhesion to a substrate, an adhesive, a patch, an adhesive tape, a wearable device and a wearable device kit.SOLUTION: There are provided a hy...

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Hauptverfasser:	NAKAMURA MAKIHITO, SUZUKI KAZUTOSHI, KAWASAKI HARU, WADA HIROSHI, SHIMOMA HITOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR DYES FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION 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 MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PAINTS POLISHES PROSTHESES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OR PROTECTION OF EYES OR EARS USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	To provide a urethane prepolymer capable of obtaining an adhesive having excellent moisture permeability and achieving both low adhesion to the skin and high adhesion to a substrate, an adhesive, a patch, an adhesive tape, a wearable device and a wearable device kit.SOLUTION: There are provided a hydroxyl group terminal urethane prepolymer obtained by reacting an oxyalkylene polymer A having an average number of hydroxyl groups per molecule of 2.1 to 3, an oxyalkylene polymer B having a number of hydroxyl groups per molecule of 1 and a diisocyanate compound, wherein the oxyalkylene polymer A has a number average molecular weight of 1000 to 50000, the oxyalkylene polymer B has a number average molecular weight of 5000 or more, the ethylene oxide unit content in the hydroxyl group terminal urethane prepolymer is more than 10 mass%, an adhesive, a patch, an adhesive tape, a wearable device and a wearable device kit.SELECTED DRAWING: None 【課題】透湿性に優れるとともに、皮膚への低粘着と基材への高粘着を両立した粘着剤を得られるウレタンプレポリマー、粘着剤、貼付材、粘着テープ、ウェアラブルデバイス及びウェアラブルデバイスキットの提供。【解決手段】１分子当たりの平均水酸基数が２．１～３であるオキシアルキレン重合体Ａと、１分子当たりの水酸基数が１であるオキシアルキレン重合体Ｂと、ジイソシアネート化合物とを反応させて得られる水酸基末端ウレタンプレポリマーであって、前記オキシアルキレン重合体Ａの数平均分子量が１０００～５００００であり、オキシアルキレン重合体Ｂの数平均分子量が５０００以上であり、水酸基末端ウレタンプレポリマー中のエチレンオキシド単位含有量が１０質量％超である、水酸基末端ウレタンプレポリマー、粘着剤、貼付材、粘着テープ、ウェアラブルデバイス及びウェアラブルデバイスキット。【選択図】なし