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公开(公告)号：EP0273228B1
公开(公告)日：1993-03-24
申请号：EP87117895.0
申请日：1987-12-03
申请人： Chisso Corporation
发明人： Shimomura, Yozo , Mori, Kinya , Kojima, Osamu
CPC分类号： C08L23/12 , C08L23/06 , C08L23/16 , C08L53/02 , C08L2205/03 , C08L2205/035 , C08L2666/02 , C08L2666/24
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公开(公告)号：EP0273228A2
公开(公告)日：1988-07-06
申请号：EP87117895.0
申请日：1987-12-03
申请人： Chisso Corporation
发明人： Shimomura, Yozo , Mori, Kinya , Kojima, Osamu
CPC分类号： C08L23/12 , C08L23/06 , C08L23/16 , C08L53/02 , C08L2205/03 , C08L2205/035 , C08L2666/02 , C08L2666/24
摘要： A polypropylene composition capable of producing molded products having superior stiffness, impact resistance, transparency, resistance to whitening on impact on bending and luster is provided, which composition has (i) a styrene-ethylene·butylene-styrene block copolymer or a styrene-ethylene·propylene block copolymer each in 5 to 30% by weight based on the weight of the composition, blended with a highly crystalline propylene homopolymer (A) having a relationship between its isotactic pentad ratio (P) and melt flow rate (MFR) represented by an expression of
1.00 ≧ P ≧ 0.015 log MFR + 0.955;
(ii) a styrene-ethylene·butylene-styrene block copolymer or a styrene-ethylene·propylene block copolymer each in 5 to 30% by weight based on the weight of the composition and an ethylene-propylene copolymer rubber or a polyethylene each in 15% by weight based thereon, blended with the above (A), the blending proportion of (A) being 60% by weight or more based on the weight of the composition; or (iii) a styrene-ethylene·butylene-styrene block copolymer or a styrene-ethylene·propylene block copolymer, each in 5 to 30% by weight based on the weight of the composition, an ethylene-propylene rubber and polyethylene each in 15% by weight or less based thereon, blended with the above (A), the blending proportion of (A) being 60% by weight or more based thereon.摘要翻译： 提供了能够生产具有优异刚度，耐冲击性，透明性，抗弯曲和光泽冲击时的增白性的模制品的聚丙烯组合物，该组合物具有（ⅰ）苯乙烯 - 乙烯 - 丁烯 - 苯乙烯嵌段共聚物或苯乙烯 - 乙烯 丙烯嵌段共聚物各自以组合物重量计为5〜30重量％，与高度结晶的丙烯均聚物（A）共混，其具有其全同立构五价比（P）与由 表达式为1.00> / = P> / = 0.015log MFR + 0.955; （ii）苯乙烯 - 乙烯 - 丁烯 - 苯乙烯嵌段共聚物或苯乙烯 - 乙烯 - 丙烯嵌段共聚物各自以组合物重量为基准计为5-30％（重量），乙烯 - 丙烯共聚物橡胶或聚乙烯各自为15 基于该组合物的重量计，与上述（A）混合，（A）的配合比例为组合物重量的60重量％以上; 或（iii）苯乙烯 - 乙烯 - 丁烯 - 苯乙烯嵌段共聚物或苯乙烯 - 乙烯 - 丙烯嵌段共聚物，各自为组合物重量的5至30重量％，乙烯 - 丙烯橡胶和聚乙烯各自为15 与上述（A）配合，（A）的配合比例为60重量％以上。
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公开(公告)号：EP0273228A3
公开(公告)日：1990-03-28
申请号：EP87117895.0
申请日：1987-12-03
申请人： Chisso Corporation
发明人： Shimomura, Yozo , Mori, Kinya , Kojima, Osamu
CPC分类号： C08L23/12 , C08L23/06 , C08L23/16 , C08L53/02 , C08L2205/03 , C08L2205/035 , C08L2666/02 , C08L2666/24
摘要： A polypropylene composition capable of producing molded products having superior stiffness, impact resistance, transparency, resistance to whitening on impact on bending and luster is provided, which composition has (i) a styrene-ethylene·butylene-styrene block copolymer or a styrene-ethylene·propylene block copolymer each in 5 to 30% by weight based on the weight of the composition, blended with a highly crystalline propylene homopolymer (A) having a relationship between its isotactic pentad ratio (P) and melt flow rate (MFR) represented by an expression of
1.00 ≧ P ≧ 0.015 log MFR + 0.955;
(ii) a styrene-ethylene·butylene-styrene block copolymer or a styrene-ethylene·propylene block copolymer each in 5 to 30% by weight based on the weight of the composition and an ethylene-propylene copolymer rubber or a polyethylene each in 15% by weight based thereon, blended with the above (A), the blending proportion of (A) being 60% by weight or more based on the weight of the composition; or (iii) a styrene-ethylene·butylene-styrene block copolymer or a styrene-ethylene·propylene block copolymer, each in 5 to 30% by weight based on the weight of the composition, an ethylene-propylene rubber and polyethylene each in 15% by weight or less based thereon, blended with the above (A), the blending proportion of (A) being 60% by weight or more based thereon.
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