公开(公告)号：US06300415B1

公开(公告)日：2001-10-09

申请号：US09068949

申请日：1998-08-14

申请人： Chikashi Okayama ,  Takanori Nakashima ,  Masami Kimura ,  Mayumi Wakata ,  Kazuhiro Kimura ,  Toshiki Yamamoto ,  Hirohisa Ishii ,  Masataka Sugimoto ,  Kunio Gouda ,  Yasuhiro Mochizuki ,  Noriaki Saito ,  Junichiro Yokota ,  Shouji Kawano ,  Yasuhiko Nakagawa

发明人： Chikashi Okayama ,  Takanori Nakashima ,  Masami Kimura ,  Mayumi Wakata ,  Kazuhiro Kimura ,  Toshiki Yamamoto ,  Hirohisa Ishii ,  Masataka Sugimoto ,  Kunio Gouda ,  Yasuhiro Mochizuki ,  Noriaki Saito ,  Junichiro Yokota ,  Shouji Kawano ,  Yasuhiko Nakagawa

IPC分类号： C08L2312

CPC分类号： C08J5/18 ,  B32B27/32 ,  C08F110/06 ,  C08F210/06 ,  C08F255/02 ,  C08F297/083 ,  C08J2323/10 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/16 ,  C08L51/06 ,  C08L53/00 ,  C08L2666/04 ,  C08L2666/02 ,  C08F2500/15 ,  C08F2500/12 ,  C08F2500/26 ,  C08F210/16 ,  C08F2500/17

摘要： A polypropylene composition for the production of various molded articles which are excellent in moldability, mold shrinkage factor on molding, rigidity, flexibility, impact resistance, in particular low-temperature impact resistance, transparency, gloss, stress-whitening resistance, and the balance thereof; various molded articles having the above properties; a propylene composition which is suitable for a base resin for the polypropylene composition; and a process for the production thereof. The propylene composition comprises a propylene homopolymer and a propylene-ethylene copolymer, the intrinsic viscosity of the copolymer ([&eegr;]RC) is in the range of 1.7 to 2.8 dl/g, the intrinsic viscosity ratio of the homopolymer to the copolymer ([&eegr;]RC/[&eegr;]pp) is in the range of 0.7 to 1.2 and a product [(WPP/WRC)×([&eegr;]RC/[&eegr;]pp)] of the weight ratio (WPP/WRC) of the homopolymer to the copolymer and the intrinsic viscosity ratio thereof is in the range of 1.0 to 3.0.

摘要翻译： 用于生产成型性，成型时的成型收缩率，刚性，柔软性，耐冲击性，特别是低温耐冲击性，透明性，光泽，耐应力增白性及其余量的各种成型品的聚丙烯组合物 ; 具有上述特性的各种成型品; 适用于聚丙烯组合物的基础树脂的丙烯组合物; 及其生产方法。 丙烯组合物包含丙烯均聚物和丙烯 - 乙烯共聚物，共聚物的特性粘度（ηRC）在1.7至2.8dl / g的范围内，均聚物与共聚物的特性粘度比（[ ηWP /ηpp）在0.7至1.2的范围内，并且产物[（WPP / WRC）x（ηRC /ηpp）]的重量比（WPP / WRC） 共聚物的均聚物和其特性粘度比在1.0〜3.0的范围内。

公开(公告)号：US5658628A

公开(公告)日：1997-08-19

申请号：US544283

申请日：1995-10-17

申请人： Hirohisa Ishii ,  Toshihiko Nishida ,  Kunio Gouda

发明人： Hirohisa Ishii ,  Toshihiko Nishida ,  Kunio Gouda

IPC分类号： B29C49/02 ,  B29C49/00 ,  B29C49/04 ,  B29D23/00 ,  B29K23/00 ,  B29L22/00 ,  B65D1/02 ,  C08L23/06 ,  C08L23/08 ,  C08L23/10 ,  C08L23/16

CPC分类号： B29C49/0005 ,  B65D1/0207 ,  C08L23/10 ,  B29C49/04 ,  B29K2023/12 ,  B29K2105/0088 ,  B29K2995/0025 ,  B29K2995/0026 ,  B29L2031/7158 ,  C08L23/06 ,  C08L23/0815 ,  Y10T428/1352 ,  Y10T428/1397 ,  Y10T428/31913

摘要： The present invention provides blow bottles of a polyolefin resin having excellent transparency by the utilization of characteristics of the polypropylene. That is, they are the blow bottles of a polyolefin resin obtained by subjecting, to an extrusion blow molding method, a composition having a melt flow rate at 230.degree. C. of 0.5 to 10 g/10 minutes prepared by blending (A) 70 to 99.99% by weight of a propylene random copolymer of multi-component system having a crystalline melting point of 110.degree. to 145.degree. C. and containing 3 to 10% by weight of ethylene units with (B) a certain amount of two or three kinds of polyethylenes selected from 15 to 0.01% by weight of a straight-chain low-density polyethylene, 4 to 0.01% by weight of a low-density polyethylene and 4 to 0.01% by weight of a high-density polyethylene.

摘要翻译： 本发明提供通过利用聚丙烯的特性具有优异的透明性的聚烯烃树脂吹塑瓶。 也就是说，它们是通过挤出吹塑法将熔融流动速率为230℃的组合物通过混合（A）70制备的0.5至10g / 10分钟而获得的聚烯烃树脂的吹塑瓶 至99.99重量％的具有结晶熔点为110-145℃的多组分体系的丙烯无规共聚物，并含有3至10重量％的乙烯单元，（B）一定量的两个或三个 各种选自15至0.01重量％的直链低密度聚乙烯，4至0.01重量％的低密度聚乙烯和4至0.01重量％的高密度聚乙烯的聚乙烯。