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METHOD FOR MANUFACTURING MOLDED ARTICLE

外国特許コード F140008031
整理番号 S2013-0041-C0,内0357-2
掲載日 2014年11月19日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2013JP077554
国際公開番号 WO 2014058003
国際出願日 平成25年10月10日(2013.10.10)
国際公開日 平成26年4月17日(2014.4.17)
優先権データ
  • 特願2012-226349 (2012.10.11) JP
発明の名称 (英語) METHOD FOR MANUFACTURING MOLDED ARTICLE
発明の概要(英語) By the present invention, by irradiating a molded article containing ultra-high-molecular-weight polyethylene and vitamin E with radiation at a temperature of 0°C or lower to cross-link the ultra-high-molecular-weight polyethylene, vitamin E radicals included in the molded article immediately after irradiation can be reduced, the generation of tocopherol quinone by subsequent transposition of vitamin E radicals can therefore be suppressed, and the biological safety of the molded article can be enhanced. By also storing the molded article for at least one day at a temperature of 0°C or lower after irradiation, the rate of reduction of vitamin E radicals or alkyl radicals generated by the irradiation can be decreased. The molded article thus obtained has excellent oxidation resistance and biological safety, and is therefore suitable for use as a medical implant.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NATIONAL UNIVERSITY CORPORATION KYOTO INSTITUTE OF TECHNOLOGY
  • 発明者(英語)
  • TAJIMA KUNIHIKO
  • TOMITA NAOHIDE
  • UETSUKI KEITA
  • KAWASAKI TORU
  • IWADE HISASHI
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN TD TG
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