Molded rubber article

Abstract

A molded rubber article for sealing a container for storing medicinal chemicals comprising a fluorine resin film solidly covering the surface of the molded article which may contact with the chemicals. At least the surface of the bare rubber surface 300 which may contact with chemicals comprises a fluorine resin film layer 100, and a polyolefin film layer 200 is interposed between the fluorine resin film layer and the bare rubber surface. It can be preferably used as a rubber plug, a syringe gasket, a nozzle cap or an inside plug.

1 . A molded rubber article for sealing a container or an instrument used in medication or medical care application, comprising a fluorine resin film layer covering at least a surface of the molded rubber article which may contact with chemicals and a polyolefin film layer being interposed between the fluorine resin film layer and a bare rubber surface. 
     
     
         2 . A molded rubber article according to  claim 1 , wherein the rubber comprises a thermoplastic elastomer. 
     
     
         3 . A molded rubber article according to  claim 2 , wherein the thermoplastic elastomer is at least one selected from an olefin elastomer, a styrene elastomer, a vinyl chloride elastomer, an urethane eleastomer, a polyester elastomer, a polyamide elastomer, a fluorine elastomer, a polybutadiene elastomer, a polyisobutylene elestomer, a silicone elestomer and an ethylene-vinyl acetate elestomer. 
     
     
         4 . A molded rubber article according to  claim 1 , wherein the fluorine resin comprises a polytetrafluoroethylene, and the polyolefin comprises a ultrahigh molecular weight polyethylene.