Provided are articles such as packaging materials and medical devices having enhanced tolerance to radiation and heat, produced from a blend of from about 99% to about 50% by weight homo or copolymerized polypropylene and about 1% to about 50% by weight polyethylene produced by single-site catalysis,...http://www.google.es/patents/US6231936?utm_source=gb-gplus-sharePatente US6231936 - Radiation tolerant polypropylene and its useful articles
Radiation tolerant polypropylene and its useful articles