公开(公告)号：US4981760A

公开(公告)日：1991-01-01

申请号：US378000

申请日：1989-07-11

申请人： Yukio Naito ,  Kohzoh Miyazaki ,  Yuji Gotoh ,  Masashi Hamba ,  Akio Imai ,  Kiyoyuki Sugimori

发明人： Yukio Naito ,  Kohzoh Miyazaki ,  Yuji Gotoh ,  Masashi Hamba ,  Akio Imai ,  Kiyoyuki Sugimori

IPC分类号： B32B27/32 ,  C08F10/00 ,  C08F110/02 ,  C08F210/02 ,  C08F210/16 ,  C08F297/08 ,  C08J5/18 ,  C08L23/00 ,  C08L23/06 ,  C08L23/08

CPC分类号： C08J5/18 ,  C08F210/02 ,  C08F210/16 ,  C08F297/08 ,  C08L23/0815 ,  C08F110/02 ,  C08J2323/08 ,  C08L23/06 ,  Y10T428/31855 ,  Y10T428/31938

摘要： An ethylene-.alpha.-olefin copolymer comprising ethylene and an .alpha.-olefin having from 3 to 10 carbon atoms, the copolymer having an .alpha.-olefin content of from 1.0 to 8.0 mol %, a density of from 0.900 to 0.930 g/cm.sup.3, and a melt flow rate of from 0.1 to 100 g/10 min., the programed-temperature thermogram of said copolymer as determined with a differential scanning calorimeter after being completely melted and then gradually cooled showing an endothermic peak (a) in a range of from 75.degree. to 100.degree. C. and an endothermic peak (b) in a range of from 120.degree. to 140.degree. C., with the ratio of an endotherm at the endothermic peak (b), .DELTA.Hb, to an endotherm at the endothermic peak (a), .DELTA.Ha, i.e., .DELTA.Hb/.DELTA.Ha, being from 0.03 to 2.0. The copolymer provides a film exhibiting excellent physical properties required for packaging film.

公开(公告)号：US5602223A

公开(公告)日：1997-02-11

申请号：US611018

申请日：1996-03-05

申请人： Toshio Sasaki ,  Kohzoh Miyazaki ,  Hiroyuki Shiraishi ,  Yuji Shigematsu ,  Hirofumi Johoji ,  Akio Uemura ,  Yufu Sato

发明人： Toshio Sasaki ,  Kohzoh Miyazaki ,  Hiroyuki Shiraishi ,  Yuji Shigematsu ,  Hirofumi Johoji ,  Akio Uemura ,  Yufu Sato

IPC分类号： C08F210/16 ,  C08F10/00 ,  C08J5/18 ,  C08L23/08 ,  C08F210/02

CPC分类号： C08F210/16 ,  C08F10/00 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/0815

摘要： An ethylene-.alpha.-olefin copolymer having;(A) a density (.rho.) of from 0.870 to 0.945 g/cm.sup.3,(B) a ratio (TVR) of trans-vinylene type carbon-carbon double bonds to total cabon-carbon double bonds as determined with an infrared absorption spectrum being 35% or more, and(C) a weight average molecular weight (Mw) of from 3.0.times.10.sup.4 to 6.0.times.10.sup.5, and a molded article comprising thereof. The present invention provides an ethylene-.alpha.-olefin copolymer and a molded article comprising thereof having an excellent transparency, high gloss and high melt tension.

摘要翻译： 乙烯-α-烯烃共聚物具有： （A）0.870至0.945g / cm3的密度（rho），（B）反式亚乙烯基型碳 - 碳双键与总红外吸收光谱确定的总碳 - 碳双键的比（TVR）为 35％以上，（C）重均分子量（Mw）为3.0×10 4〜6.0×10 5，以及包含其的成型体。 本发明提供一种乙烯-α-烯烃共聚物及其包含的具有优异的透明度，高光泽和高熔体张力的模制品。

公开(公告)号：US5508364A

公开(公告)日：1996-04-16

申请号：US517856

申请日：1995-08-22

申请人： Toshio Sasaki ,  Hirofumi Johoji ,  Hiroyuki Shiraishi ,  Kohzoh Miyazaki ,  Toshimi Sato ,  Yuji Shigematsu

发明人： Toshio Sasaki ,  Hirofumi Johoji ,  Hiroyuki Shiraishi ,  Kohzoh Miyazaki ,  Toshimi Sato ,  Yuji Shigematsu

IPC分类号： C08F4/64 ,  C08F4/60 ,  C08F4/646 ,  C08F4/655 ,  C08F10/00

CPC分类号： C08F10/00

摘要： A process for polymerizing ethylene at a high temperature under high pressure, which comprises contacting ethylene alone or along with an .alpha.-olefin at a temperature of 120.degree. C. or more at a pressure of 350 kg/cm.sup.2 or more with a catalyst consisting essentially of (A) a reaction product of (A1) a titanium compound having at least one titanium-nitrogen bond with (A2) an organometallic compound of an element of Groups I to III of the Periodic Table and (B) an organoaluminum compound. Said process enables the production of an ethylene polymer or copolymer having a narrow composition distribution and a high molecular weight and being excellent in weather resistance, color development, transparency, corrosiveness and mechanical properties.

摘要翻译： 一种在高压下在高温下聚合乙烯的方法，其包括在150℃或更高的温度下，以350kg / cm 2或更高的压力使乙烯单独或与α-烯烃接触，催化剂基本上与 （A）（A1）具有至少一个钛 - 氮键的钛化合物与（A2）元素周期表第I至III族元素的有机金属化合物和（B）有机铝化合物的反应产物。 所述方法能够制备具有窄组成分布和高分子量并且耐候性，显色性，透明性，腐蚀性和机械性能优异的乙烯聚合物或共聚物。

公开(公告)号：US4808484A

公开(公告)日：1989-02-28

申请号：US89455

申请日：1987-08-26

申请人： Kunio Yamada ,  Kohzoh Miyazaki ,  Yoshitaka Oowatari ,  Yoshio Egami ,  Toshio Honma

发明人： Kunio Yamada ,  Kohzoh Miyazaki ,  Yoshitaka Oowatari ,  Yoshio Egami ,  Toshio Honma

IPC分类号： C08K13/02 ,  B65D65/38 ,  C08J5/18 ,  C08K3/00 ,  C08K3/36 ,  C08K5/07 ,  C08K5/10 ,  C08K5/17 ,  C08K5/20 ,  C08L23/08 ,  B32B27/30

CPC分类号： C08K5/10 ,  C08K3/36 ,  C08K5/20 ,  Y10T428/31935

摘要： A peelable protective film is disclosed, which is processed from a composition comprising 100 parts by weight of an ethylene/methyl methacrylate copolymer, from 0.01 to 0.1 part by weight of an inorganic filler, and from 0.01 to 1.0 part by weight of a slip agent. The protective film of the invention, when wrapped around articles having a tacky surface, exhibits good adhesion to the substrate and has a low peeling strength and, therefore, can be readily peeled away as required.

摘要翻译： 公开了一种可剥离的保护膜，其由包含100重量份的乙烯/甲基丙烯酸甲酯共​​聚物，0.01至0.1重量份的无机填料和0.01至1.0重量份的滑爽剂 。 本发明的保护膜当缠绕在具有粘性表面的物品上时，对基材表现出良好的粘合性，并且剥离强度低，因此根据需要容易剥离。