| 摘要 |
<p>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.</p> |
