Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber. The surface modification method comprises the step of forming hydroxyl group on surface of to-be-modified object such as rubber so that water contact angle of the surface becomes 8 to 50 degrees smaller than original water contact angle in unmodified condition, the step of forming polymerization initiation site by subjecting the hydroxyl group to action of secondary or tertiary organic halide, and the step of growing polymer brush on the surface of to-be-modified object by subjecting monomer to radical polymerization at the polymerization initiation site acting as a point of initiation.
SURFACE MODIFICATION METHOD, SURFACE-MODIFIED ELASTIC BODY, SYRINGE GASKET, SYRINGE, AND TIRE
VERFAHREN ZUR MODIFIZIERUNG DER OBERFLÄCHE, OBERFLÄCHENMODIFIZIERTER ELASTISCHER KÖRPER, SPRITZENDICHTUNG, SPRITZE UND REIFEN
PROCÉDÉ DE MODIFICATION DE SURFACE, CORPS ÉLASTIQUE MODIFIÉ EN SURFACE, JOINT DE SERINGUE, SERINGUE ET PNEU
2017-02-15
Patent
Electronic Resource
English
IPC: | C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / A61M DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY , Vorrichtungen zum Einführen oder Aufbringen von Substanzen in oder auf den Körper / B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP / F16J Kolben , PISTONS |
Surface modification method, surface-modified elastic body, gasket for injector, injector, and tire
European Patent Office | 2016
|SURFACE MODIFICATION METHOD, SURFACE-MODIFIED ELASTIC BODY, GASKET FOR INJECTOR, INJECTOR, AND TIRE
European Patent Office | 2015
|