Polycarbonate composition having improved resistance to gamma-ray radiation
申请人:TEIJIN LIMITED
公开号:EP0664316A1
公开(公告)日:1995-07-26
A polycarbonate composition having improved resistance to γ-ray radiation, containing 0.01 to 10 parts by weight of a benzyl ether or benzylthioether derivative or the like. This polycarbonate resin composition is almost free from yellowing by γ-ray radiation in air or O2-free atmosphere, and is suitable for use in medical molded articles which are sterilized by γ-ray radiation.
We report herein the possibility to perform the hydrosilylation of carbonyls using actinide complexes as catalysts. While complexes of the uranyl ion [UO2]2+ have been poorly considered in catalysis, we show the potentialities of the Lewis acid [UO2(OTf)2] (1) in the catalytic hydrosilylation of a series of aldehydes. [UO2(OTf)2] proved to be a very active catalyst affording distinct reduction products