-
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.
-
公开(公告)号：US4883842A
公开(公告)日：1989-11-28
申请号：US172786
申请日：1988-03-28
摘要： There is disclosed resin composition comprising 1 to 99% by weight of a polymer A and 1 to 99% by weight of a polymer B, the polymer A and B having refractive indexes which permit satisfaction of the relation:a.ltoreq.0.015 and b-a.gtoreq.0.005wherein a and b are the minimum and the maximum, respectively, of absolute value of the difference between the refractive indexes of the polymers A and B in the temperature range of 20.degree. to 100.degree. C.; said composition being useful as a functional resin for buildings, etc.
-
3.发明授权Process for producing 4-methylpentene-1 copolymer and resin composition containing the same 失效制备4-甲基戊烯-1共聚物的方法和含有它们的树脂组合物
公开(公告)号：US4801650A
公开(公告)日：1989-01-31
申请号：US93286
申请日：1987-09-04
申请人： Kizuku Wakatsuki , Kazuki Wakamatsu
发明人： Kizuku Wakatsuki , Kazuki Wakamatsu
IPC分类号： C08F2/00 , C08F2/04 , C08F2/06 , C08F8/50 , C08F10/00 , C08F210/14 , C08F255/00 , C08F255/08 , C08F297/08 , C08L23/18
CPC分类号： C08F210/14
摘要： A process for producing a 4-methylpentene-1 copolymer comprising copolymerizing 4-methylpentene-1 with other .alpha.-olefin in a hydrocarbon solvent in the presence of a Ziegler-Natta catalyst and a resin composition containing the 4-methylpentene-1 copolymer are disclosed. The copolymerization comprises a first stage in which (A) a homopolymer or random copolymer of 4-methylpentene-1 having an .alpha.-olefin content of not more than 3 mol % and an intrinsic viscosity of at least 2.5 dl/g is prepared and a second stage in which (B) a random copolymer having an .alpha.-olefin content higher than that of the polymer (A) and no higher than 9 mol % and an intrinsic viscosity of at least 2.5 dl/g is prepared, and the produced copolymer insoluble in the solvent is separated to recover a 4-methylpentene-1 copolymer containing from 5 to 80% by weight of the polymer (A). The process produces a solvent-insoluble copolymer in an increased yield without impairing transparency of the copolymer.
-
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。
-
公开(公告)号：US5141994A
公开(公告)日：1992-08-25
申请号：US432443
申请日：1989-11-06
申请人： Masahiro Kakugo , Hajime Sadatoshi , Jiro Sakai , Kazuki Wakamatsu , Kazuhiro Chikaishi , Toshiro Kojima , Hideo Nomura , Tomohisa Fukao
发明人： Masahiro Kakugo , Hajime Sadatoshi , Jiro Sakai , Kazuki Wakamatsu , Kazuhiro Chikaishi , Toshiro Kojima , Hideo Nomura , Tomohisa Fukao
IPC分类号： C08F297/08 , C08L23/10 , C08L23/14
CPC分类号： C08L23/142 , C08F297/08 , C08F297/086 , C08L23/10 , C08L2205/02 , C08L2308/00
摘要： Crystalline polypropylene excellent in rigidity, heat resistance and surface hardness is disclosed, having a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) (Mw/Mn) of 10 or more, an intrinsic viscosity [.eta.] of from 0.8 to 5.0 dl/g as measured in tetralin at 135.degree. C., a cold xylene-soluble content (CXS) of not more than 4% by weight, a density (d) of 0.910 g/cm.sup.3 or more as measured at 23.degree. C., and a long period (L) (.ANG.) as measured at 25.degree. C. by a small-angle X-ray scattering method satisfying relationship:L.ltoreq.LC=6667d-5894wherein d is a density at 23.degree. C.; and Lc is a value (.ANG.) obrained by equation:Lc=6667d-5894.A crystalline polypropylene composition containing the foregoing crystalline polypropylene, which is excellent in rigidity and heat resistance, is also disclosed.
-
6.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。
-
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。
-
公开(公告)号：US4259461A
公开(公告)日：1981-03-31
申请号：US041462
申请日：1979-05-22
申请人： Akinobu Shiga , Masahiro Kakugo , Yoshiharu Fukui , Koji Yamada , Hajime Sadatoshi , Kazuki Wakamatsu , Hiroshi Yoshioka
发明人： Akinobu Shiga , Masahiro Kakugo , Yoshiharu Fukui , Koji Yamada , Hajime Sadatoshi , Kazuki Wakamatsu , Hiroshi Yoshioka
IPC分类号： C08F297/08
CPC分类号： C08F297/083
摘要： An improved process for producing propylene-ethylene block copolymer is disclosed utilizing a catalyst system comprising (A) a titanium trichloride solid catalyst obtained by reducing titanium tetrachloride with an organoaluminum compound and activating, (B) an organoaluminum compound, and optionally, (C) an electron donor.
摘要翻译： 公开了一种用于生产丙烯 - 乙烯嵌段共聚物的改进方法，该催化剂体系包含（A）通过用有机铝化合物还原四氯化钛并活化（B）有机铝化合物和任选的（C） 电子供体。
-
9.发明申请公开(公告)号：US20100197865A1
公开(公告)日：2010-08-05
申请号：US12064647
申请日：2006-08-29
申请人： Hideki Oshima , Takashi Sanada , Kazuki Wakamatsu
发明人： Hideki Oshima , Takashi Sanada , Kazuki Wakamatsu
IPC分类号： C08F255/04
CPC分类号： C08F297/08 , C08F297/083 , C08L23/12 , C08L53/00 , C08L2666/06
摘要： A propylene-ethylene-butene block copolymer is provided which includes from 60 to 85% by weight of a polypropylene portion and from 15 to 40% by weight of a propylene-ethylene-butene random copolymer portion, wherein the copolymer satisfies the requirements (1) and (2) given below. In addition, a molded article including such a propylene-ethylene-butene block copolymer is provided. (1) The random copolymer portion includes a propylene-ethylene random copolymer component (EP) and a propylene-ethylene-butene random copolymer component (EPB) and the copolymer component (EP) has an intrinsic viscosity of from 1.5 to 8 dl/g and an ethylene unit content of from 20 to 50% by weight, and the copolymer component (EPB) has an intrinsic viscosity of from 0.5 to 8 dl/g, an ethylene unit content of from 47 to 77% by weight and a butene unit component of from 3 to 33% by weight and the total of the ethylene unit content and the butene unit content is from 50 to 80% by weight. (2): The propylene-ethylene-butene block copolymer has a melt flow rate of from 5 to 120 g/10 min.
摘要翻译： 提供了丙烯 - 乙烯 - 丁烯嵌段共聚物，其包含60至85重量％的聚丙烯部分和15至40重量％的丙烯 - 乙烯 - 丁烯无规共聚物部分，其中所述共聚物满足要求（1 ）和（2）给出。 此外，提供了包含这种丙烯 - 乙烯 - 丁烯嵌段共聚物的模塑制品。 （1）无规共聚物部分包括丙烯 - 乙烯无规共聚物组分（EP）和丙烯 - 乙烯 - 丁烯无规共聚物组分（EPB），共聚物组分（EP）的特性粘度为1.5至8dl / g 乙烯单元含量为20〜50重量％，共聚物成分（EPB）的特性粘度为0.5〜8dl / g，乙烯单元含量为47〜77重量％，丁烯单元 组分为3至33重量％，乙烯单元含量和丁烯单元含量的总和为50至80重量％。 （2）：丙烯 - 乙烯 - 丁烯嵌段共聚物的熔体流动速率为5〜120g / 10分钟。
-
10.发明授权公开(公告)号：US06613850B1
公开(公告)日：2003-09-02
申请号：US09125518
申请日：1998-11-23
申请人： Hideki Sato , Hiroaki Katayama , Kazuki Wakamatsu
发明人： Hideki Sato , Hiroaki Katayama , Kazuki Wakamatsu
IPC分类号： C08F444
CPC分类号： C07F5/027 , B01J21/02 , B01J31/14 , C08F4/65908 , C08F4/65912 , C08F4/6592 , C08F10/00 , C08F210/16 , C08F2420/02 , C08J5/18 , C08J2323/02 , C08F4/603 , C08F4/61908 , C08F210/14 , C08F2500/12 , C08F2500/08 , C08F210/08 , C08F2500/03 , C08F2500/02 , C08F2500/10
摘要： A method for feeding a boron compound, which comprises feeding at least one boron compound selected from (1) to (3) described below in the state suspended or slurried in a solvent continuously to a reactor; a boron compound in the form of fine particles being one or more boron compounds selected from (1) to (3) described below and having a maximum particle diameter of 50 &mgr;m or less; a catalyst component for olefin polymerization consisting of said boron compound in the form of fine particles; a method for producing a boron compound in the form of fine particles which comprises dissolving one or more boron compounds selected from (1) to (3) described below in an aromatic hydrocarbon solvent and then precipitating in an aliphatic hydrocarbon solvent; and a method for producing a boron compound in the form of fine particles which comprises pulverizing one or more boron compounds selected from (1) to (3) described below so that their maximum particle diameter is 50 &mgr;m or less. (1) a boron compound represented by the general formula: BQ1Q2Q3, (2) a boron compound represented by the general formula: G+(BQ1Q2Q3Q4)−, and (3) a boron compound represented by the general formula: (L-H)+(BQ1Q2Q3Q4)−.
摘要翻译： 一种硼化合物的供给方法，其特征在于，将至少一种选自下述（1）〜（3）的硼化合物以在溶剂中悬浮或浆化至反应器的状态; 微粒形式的硼化合物是选自下述（1）至（3）中并且最大粒径为50μm或更小的一种或多种硼化合物; 用于由细颗粒形式的所述硼化合物组成的用于烯烃聚合的催化剂组分; 一种制备细颗粒形式的硼化合物的方法，包括将一种或多种选自下述（1）至（3）的硼化合物溶解在芳烃溶剂中，然后在脂族烃溶剂中沉淀; 以及一种微细颗粒形式的硼化合物的制造方法，其中包括粉碎一种或多种选自下述（1）至（3）的硼化合物，使其最大粒径为50μm以下。 （1）由通式：BQ1Q2Q3表示的硼化合物，（2）由通式G +（BQ1Q2Q3Q4） - 表示的硼化合物，和（3）由通式（LH）+（ BQ1Q2Q3Q4） - 。
-
-
-
-
-
-
-
-
-
搜索结果
41 条记录 (耗时 0.024 秒)
