Radiation-resistant polypropylene resin composition

Details Radiation-resistant polypropylene resin composition Radiation-resistant polypropylene resin composition

C - Chemistry, Metallurgy

08

F

21/2, 402/624, 4

C08F 10/00 (2006.01) A61J 1/00 (2006.01) C08F 10/06 (2006.01) C08K 5/3435 (2006.01) C08K 5/526 (2006.01) C08L 23/10 (2006.01) C08L 23/12 (2006.01)

Patent

CA 2031443

A radiation-resistant polypropylene resin material is disclosed which comprises a polypropylene having a substantially syndiotactic structure, and if desired, a phosphorus-containing anti-oxidant, an amine-containing anti-oxidant and/or a nucleating agent. Molded articles obtained from this resin material can be utilized as containers for foods and medicines, and their physical properties scarcely deteriorate during sterilization by radiation.

Divulgation concernant une résine de polypropylène résistant aux rayonnements; elle renferme un polypropylène à structure essentiellement syndiotactique et, si souhaités, un antioxydant contenant du phosphore, un antioxydant contenant une amine et (ou) un agent de nucléation. Les articles moulés, obtenus à partir de cette résine, peuvent être utilisés comme contenants pour aliments ou médicaments, leurs propriétés physiques étant à peine altérées lors de la stérilisation par rayonnement.

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