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公开(公告)号：EP0153415B1
公开(公告)日：1989-09-13
申请号：EP84903091.1
申请日：1984-08-17
IPC分类号： C08L53/00
CPC分类号： C08L53/00 , C08K3/013 , C08L2666/04
摘要： PCT No. PCT/JP84/00403 Sec. 371 Date Mar. 29, 1985 Sec. 102(e) Date Mar. 29, 1985 PCT Filed Aug. 17, 1984.Disclosed herein is a preparation process for polypropylene-base resin compositions, which process comprises heating at a temperature of 170 DEG -280 DEG C. a mixture containing a crystalline ethylenepropylene block copolymer having a specific composition, an ethylene-propylene copolymer rubber having a specific composition and viscosity, an inorganic filler having a specific particle size, and an organic peroxide, all in specified amounts. The thus-obtained polypropylene-base resin compositions are suitable for use in the production of large moldings such as automobile bumpers, fenders and body sidemembers because of their excellent low-temperature impact resistance, high molding fluidity, good paintability and high stiffness as well as their low preparation cost.
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公开(公告)号：EP0446358B1
公开(公告)日：1995-10-18
申请号：EP90910929.0
申请日：1990-07-11
发明人： YOKOTE, Sachio , KAWAI, Yoichi , MISUMI, Masaki
摘要： A polypropylene resin composition which is excellent in transparency and scarcely causes lowering of the pH of an extract in an accelerated hot water extraction test of a polypropylene resin irradiated with a radiation for the purpose of sterilization. The composition comprises 100 parts by weight of polypropylene resin, 0.01 to 1.0 part by weight of metal diaryl phosphate of general formula; and 0.001 to 1.0 part by weight of a hydroxide of an alkali metal, an alkaline earth metal or an aluminum group metal (I), wherein R1 and R2 each represent hydrogen or alkyl; M represents alkali metal or alkaline earth metal; n is an integer of 1 or 2; and A represents alkylidene. This composition is suitable for medical appliances, food containers, and so forth.
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公开(公告)号：EP0446358A1
公开(公告)日：1991-09-18
申请号：EP90910929.0
申请日：1990-07-11
发明人： YOKOTE, Sachio , KAWAI, Yoichi , MISUMI, Masaki
摘要： A polypropylene resin composition which is excellent in transparency and scarcely causes lowering of the pH of an extract in an accelerated hot water extraction test of a polypropylene resin irradiated with a radiation for the purpose of sterilization. The composition comprises 100 parts by weight of polypropylene resin, 0.01 to 1.0 part by weight of metal diaryl phosphate of general formula; and 0.001 to 1.0 part by weight of a hydroxide of an alkali metal, an alkaline earth metal or an aluminum group metal (I), wherein R₁ and R₂ each represent hydrogen or alkyl; M represents alkali metal or alkaline earth metal; n is an integer of 1 or 2; and A represents alkylidene. This composition is suitable for medical appliances, food containers, and so forth.
摘要翻译： 聚丙烯树脂组成。 包括（I）100个点。 重量。 聚丙烯树脂，（II）0.01-1.0份。 重量。 的式（A）的金属二芳基磷酸酯，和（III）0.001-1.0份。 重量。 的碱金属（ne earth metal）或Al gp的氢氧化物。 金属。 在（A）中，R，R 2 = H或烷基; M =碱（地球）金属; n = 1或2; 和A =亚烷基。 还声称是来自compsn。，医疗器具和注射器的成型制品。 树脂（I）是优选的。 丙烯均聚物，丙烯 - 乙烯共聚物和/或丙烯 - 丁烯共聚物。 （I）含有乙烯含量为2-6重量％的丙烯 - 乙烯无规共聚物。 （II）以0.05-0.5重量％存在。 每100点 重量。 的（I）和（III）存在于0.01-0.5wt。
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公开(公告)号：EP0153415A1
公开(公告)日：1985-09-04
申请号：EP84903091.1
申请日：1984-08-17
IPC分类号： C08L53/00
CPC分类号： C08L53/00 , C08K3/013 , C08L2666/04
摘要： A process for producing polypropylene resin composition, which comprises heating at 170 to 280°C a composition containing specific amounts of a crystalline ethylene/propylene block copolymer of a specific formulation, an ethylene/ propylene copolymer rubber of a specific formulation and a specific viscosity, an inorganic filler of a specific particle size, and an organic peroxide. The obtained polypropylene resin composition is excellent in low-temperature impact strength and mold flowability, has good coatability and high rigidity, and is inexpensive, thus being suited for use as large-sized moldings such as bumpers, fenders, side molds, etc. of automobiles.
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