Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Xia Zhao0
Date of Patent
July 20, 2010
0Patent Application Number
115085530
Date Filed
August 23, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides a method sterilizing butyl rubber/styrene butadiene rubber (SBR) articles used in syringes or medical containers, comprising irradiating the butyl rubber/SBR elastomeric copolymer rubber article with gamma irradiation, wherein the SBR elastomeric copolymer comprises about 5% to about 50% of the rubber composition on a basis of total weight of the composition; and then exposing the irradiated rubber composition to a sterilizing gas for a time period sufficient to sterilize the rubber composition. The irradiated, sterilized rubber composition of the present invention is capable of maintaining superior performance standards with respect to sealability, recoverability from stress and elasticity.
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