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公开(公告)号：US5039748A
公开(公告)日：1991-08-13
申请号：US524526
申请日：1990-05-17
CPC分类号： C08L23/10 , C08L23/12 , D01F6/06 , C08L2203/12 , C08L23/20 , C08L2314/02
摘要： High-Strength polypropylene fiber is obtained from polypropylene having incorporated therein from 0.05 to 10,000 ppm by weight of a vinylcycloalkane polymer. The disclosed fiber polypropylene has an intrinsic viscosity of from 0.5 to 2.5 dl/g as measured in a tetralin solution at 135.degree. C. and a ratio of weight average molecular weight to number average molecular weight of not more than 3.5/1.
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公开(公告)号：US4603174A
公开(公告)日：1986-07-29
申请号：US686865
申请日：1984-12-27
申请人： Tadayuki Okada , Masahiro Kakugo , Yoshiharu Fukui , Kizuku Wakatsuki , Seiichiro Ima , Junichi Kimura
发明人： Tadayuki Okada , Masahiro Kakugo , Yoshiharu Fukui , Kizuku Wakatsuki , Seiichiro Ima , Junichi Kimura
IPC分类号： B29C55/00 , B29C55/02 , B29K23/00 , B29L7/00 , C08J5/18 , C08L23/12 , C08L23/14 , C08L23/20 , C08L23/04
CPC分类号： C08J5/18 , C08L23/12 , C08L23/142 , C08J2323/10 , C08L23/20 , C08L2314/02 , Y10S428/91 , Y10T428/31913
摘要： A stretched polypropylene film having excellent see-through characteristics, which is prepared by stretching in at least one direction a polypropylene resin sheet containing 0.05 ppm to 10,000 ppm by weight of a 3-position branched .alpha.-olefin unit and/or a vinyl cycloalkane unit, each having at least 6 carbon atoms.
摘要翻译： 一种拉伸聚丙烯薄膜，具有优异的透视特性，其通过至少一个方向拉伸含有0.05ppm至10,000ppm重量的3-位支链α-烯烃单元和/或乙烯基环烷烃单元的聚丙烯树脂板 各自具有至少6个碳原子。
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公开(公告)号：US4696979A
公开(公告)日：1987-09-29
申请号：US686864
申请日：1984-12-27
摘要： A process for producing a propylene copolymer having improved transparency and rigidity, which comprises carrying out (A) the polymerization of a vinyl cycloalkane having at least 6 carbon atoms and (B) the polymerization of propylene either alone or with ethylene in a multiplicity of steps in the presence of a catalyst system composed of a titanium compound and an organoaluminum compound. The content of the vinyl cycloalkane unit in the resulting copolymer is 0.05 to 10,000 weight ppm.
摘要翻译： 一种制备具有改善的透明度和刚性的丙烯共聚物的方法，其包括进行（A）聚合具有至少6个碳原子的乙烯基环烷烃和（B）单独或与乙烯在多个步骤中聚合丙烯 在由钛化合物和有机铝化合物组成的催化剂体系的存在下。 所得共聚物中乙烯基环烷烃单元的含量为0.05至10,000重量ppm。
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公开(公告)号：US4584239A
公开(公告)日：1986-04-22
申请号：US753846
申请日：1985-07-11
IPC分类号： B32B27/00 , B32B27/32 , C09J7/02 , C09J123/08 , C09J123/14
CPC分类号： C09J7/0242 , B32B27/32 , C09J123/0815 , C09J123/142 , Y10S428/91 , Y10T428/2826
摘要： A stretched multilayer polypropylene film is described, comprising a stretched crystalline polypropylene layer and a layer of a composition (Composition B) laminated on at least one side of said polypropylene layer, wherein the composition B comprises a homo- or copolymer composed mainly of ethylene, propylene or butene-1 and having a melting point of 150.degree. C. or less, and a vinylcycloalkane polymer in an amount of 0.05 wt ppm to 10 wt % calculated as a vinylcycloalkane unit. This multilayer film is greatly improved in optical properties such as excellent see-through properties without deteriorating its good heat sealability. Thus it is very useful for wrapping.
摘要翻译： 描述了拉伸的多层聚丙烯薄膜，其包含拉伸的结晶聚丙烯层和层压在所述聚丙烯层的至少一侧上的组合物层（组合物B），其中组合物B包含主要由乙烯组成的均聚物或共聚物， 丙烯或丁烯-1，熔点为150℃以下，乙烯基环烷烃聚合物的量为0.05重量％〜10重量％，以乙烯基环烷烃单元计算。 这种多层膜在透光性方面优异的光学特性大大提高，而不会使其良好的热封性劣化。 因此，它是非常有用的包装。
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公开(公告)号：US4551501A
公开(公告)日：1985-11-05
申请号：US686866
申请日：1984-12-27
IPC分类号： C08L23/12 , C08F297/08 , C08L7/00 , C08L21/00 , C08L23/00 , C08L23/10 , C08L23/18 , C08L23/20 , C08L23/24 , C08L53/00 , C08L101/00 , C08L23/14
CPC分类号： C08L53/00 , C08F297/08 , C08F297/083 , C08L23/10 , C08L23/20
摘要： A crystalline propylene polymer composition having excellent transparency and rigidity comprising a blend of a crystalline polypropylene with a polymer of a vinyl cycloalkane having at least 6 carbon atoms. The composition contains 0.05 weight ppm to 10,000 weight ppm of the vinyl cycloalkane unit.
摘要翻译： 一种结晶丙烯聚合物组合物，其具有优异的透明度和刚度，包括结晶聚丙烯与具有至少6个碳原子的乙烯基环烷烃聚合物的共混物。 该组合物含有0.05重量ppm至10,000重量ppm的乙烯基环烷烃单元。
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公开(公告)号：US4748207A
公开(公告)日：1988-05-31
申请号：US753082
申请日：1985-07-09
IPC分类号： C08L23/00 , C08F210/06 , C08L7/00 , C08L21/00 , C08L23/12 , C08L23/14 , C08L23/18 , C08L23/20 , C08L77/00 , C08L101/00 , C08J5/18 , C08L53/00
CPC分类号： C08L23/12 , C08L23/142 , C08F210/06 , C08L23/20 , C08L2314/02
摘要： A crystalline polypropylene sheet is described, characterized by containing a polymer of a vinylcycloalkane having at least 6 carbon atoms in an amount of 0.05 wt ppm to 1 wt % (calculated as a vinylcycloalkane unit). This sheet is excellent in stiffness and transparency and is suitable for use in the production of various articles such as containers and trays.
摘要翻译： 描述了结晶聚丙烯片材，其特征在于含有0.05重量％至1重量％（以乙烯基环烷烃单元计算）的具有至少6个碳原子的乙烯基环烷烃的聚合物。 该片材的刚度和透明度优异，适用于各种制品如容器和托盘的生产。
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公开(公告)号：US4663394A
公开(公告)日：1987-05-05
申请号：US746690
申请日：1985-06-20
申请人： Masahiro Kakugo , Kizuku Wakatsuki
发明人： Masahiro Kakugo , Kizuku Wakatsuki
IPC分类号： C08F10/08 , C08F210/00 , C08F210/08 , C08L23/18 , C08L23/20 , C08F297/08
CPC分类号： C08L23/20
摘要： A crystalline polybutene-1 composition containing from 1.times.10.sup.-6 to 10% byweight of a vinylcycloalkane unit having a melting point of 180.degree. C. or higher in terms of its homopolymer, is disclosed. The composition has a markedly improved rate of crystal conversion of polybutene-1.
摘要翻译： 公开了一种结晶聚丁烯-1组合物，其含有1×10 -6至10重量％的其均聚物的熔点为180℃或更高的乙烯基环烷烃单元。 该组合物的聚丁烯-1的晶体转化率显着提高。
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公开(公告)号：US4254237A
公开(公告)日：1981-03-03
申请号：US30523
申请日：1979-04-16
IPC分类号： C08F297/00 , C08F297/08
CPC分类号： C08F297/086
摘要： A process for producing propylene-ethylene block copolymers by a three-step polymerization technique using a stereoregular catalyst, characterized in that the first-step polymerization is carried out by supplying propylene alone or a propylene/ethylene mixture so that the ethylene/propylene reaction ratio is 6/94 or less, thereby polymerizing 60 to 95% by weight of the total polymerization amount, the second-step polymerization is carried out by supplying a propylene/ethylene mixture so that the ethylene/propylene reaction ratio is 15/85 to 79/21, thereby polymerizing 1 to 20% by weight of the total polymerization amount, and the third-step polymerization is carried out by supplying a propylene/ethylene mixture so that the ethylene/propylene reaction ratio is 50/50 to 89/11, thereby polymerizing 4 to 35% by weight of the total polymerization amount, with the ethylene/propylene reaction ratio in the third step made larger than that in the second step. Said process can give propylene-ethylene block copolymers markedly well balanced in impact strength, stiffness, transparency and impact blushing.
摘要翻译： 一种通过使用立体规则催化剂的三步聚合技术制备丙烯 - 乙烯嵌段共聚物的方法，其特征在于第一步聚合是通过仅供应丙烯或丙烯/乙烯混合物进行的，以使乙烯/丙烯反应比 为6/94以下，由此聚合60〜95重量％的总聚合量，第二步聚合是通过供给丙烯/乙烯混合物进行的，以使乙烯/丙烯反应比为15/85〜79 / 21，由此聚合1至20重量％的总聚合量，第三步聚合通过供应丙烯/乙烯混合物进行，使得乙烯/丙烯反应比为50/50至89/11， 从而聚合4〜35重量％的总聚合量，第3步骤中的乙烯/丙烯反应比例大于第2步骤。 所述方法可以使丙烯 - 乙烯嵌段共聚物在冲击强度，刚度，透明度和冲击冲刷中显着地平衡。
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9.发明授权
公开(公告)号：US4820775A
公开(公告)日：1989-04-11
申请号：US866369
申请日：1986-05-23
申请人： Akinobu Shiga , Masahiro Kakugo , Hajime Sadatoshi , Hiroyuki Kora , Toshio Sasaki , Junpei Kojima , Kazuki Wakamatsu , Syozo Kawamata
发明人： Akinobu Shiga , Masahiro Kakugo , Hajime Sadatoshi , Hiroyuki Kora , Toshio Sasaki , Junpei Kojima , Kazuki Wakamatsu , Syozo Kawamata
IPC分类号： C08F297/00 , C08F4/16 , C08F4/52 , C08F297/08
CPC分类号： C08F297/083
摘要： A process for the production of .alpha.-olefin block copolymer particles having excellent impact resistance at low temperature and excellent molding and processing characteristics, is disclosed. The process includes a two step gas phase polymerization procedure under specific conditions in the presence of a specific catalyst system.
摘要翻译： 公开了一种在低温下具有优异的耐冲击性和优异的成型加工特性的α-烯烃嵌段共聚物颗粒的制备方法。 该方法包括在特定催化剂体系存在下的特定条件下的两步气相聚合方法。
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公开(公告)号：US4337326A
公开(公告)日：1982-06-29
申请号：US194954
申请日：1980-10-08
IPC分类号： C08F2/00 , C08F297/00 , C08F297/08
CPC分类号： C08F297/086
摘要： A process for producing a propylene-ethylene block copolymer by subjecting propylene and ethylene to three-step polymerization using a stereoregular polymerization catalyst, which comprises in the first step polymerizing propylene alone or a propylene/ethylene mixture so that the average ethylene/propylene reaction ratio is 6/94 or less, thereby polymerizing 60 to 95% by weight of the total polymerization amount, in the second step polymerizing a propylene/ethylene mixture so that the average ethylene/propylene reaction ratio is 25/75 to 67/33, thereby polymerizing 1 to 20% by weight of the total polymerization amount, and in the third step polymerizing a propylene/ethylene mixture so that the average ethylene/propylene reaction ratio is 76/24 to 89/11, thereby polymerizing 4 to 35% by weight of the total polymerization amount, wherein in the second and third steps, ethylene alone is supplied thereby gradually decreasing the amount of propylene in the polymerization system from the first step to the succeeding steps.
摘要翻译： 丙烯 - 乙烯嵌段共聚物的制备方法是使用立体规则聚合催化剂对丙烯和乙烯进行三步聚合，其中包括在第一步中聚合单独的丙烯或丙烯/乙烯混合物，使得平均乙烯/丙烯反应比 为6/94以下，由此聚合60〜95重量％的总聚合量，在丙烯/乙烯混合物的聚合中，平均乙烯/丙烯的反应比为25/75〜67/33， 聚合1至20重量％的总聚合量，并且在第三步中聚合丙烯/乙烯混合物使得平均乙烯/丙烯反应比为76/24至89/11，从而聚合4至35重量％ 的总聚合量，其中在第二和第三步骤中，仅供应乙烯，从而逐渐降低聚合体系中丙烯的量 迈向后续步骤。
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