公开(公告)号：EP0351189A2

公开(公告)日：1990-01-17

申请号：EP89307029.2

申请日：1989-07-11

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

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

IPC分类号： C08F210/16 ,  C08L23/04

CPC分类号： C08J5/18 ,  C08F110/02 ,  C08F210/02 ,  C08F210/16 ,  C08F297/08 ,  C08J2323/08 ,  C08L23/06 ,  C08L23/0815 ,  Y10T428/31855 ,  Y10T428/31938 ,  C08F4/68 ,  C08L2666/06 ,  C08F2500/07 ,  C08F2500/20 ,  C08F2500/26 ,  C08F210/08 ,  C08F2500/12

摘要： An ethylene-α-olefin copolymer comprising ethyl­ene and one or more α-olefin having from 3 to 10 carbon atoms, the copolymer having an α-olefin content of from 1.0 to 8.0 mol%, a density of from 0.900 to 0.930 g/cm³, and a melt flow rate of from 0.1 to 100 g/10 min., the programmed-temperature thermogram (see the drawings) 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° to 100°C and an endothermic peak (b) in a range of from 120° to 140°C, with the ratio of endotherm at the endothermic peak (b) to endotherm at the endothermic peak (a) being from 0.03 to 2.0.
A mixture is also made of 60 - 99 parts of a random copolymer of ethylene and an α-olefin and 1 - 40 parts of high-density polyethylene.
The copolymer or mixture is extruded or blown to form a film having excellent physical properties required for packaging film.

摘要翻译： 包含乙烯和一种或多种具有3至10个碳原子的α-烯烃的乙烯-α-烯烃共聚物，所述共聚物的α-烯烃含量为1.0至8.0摩尔％，密度为0.900至0.930克/厘米3 3分钟，熔体流动速率为0.1〜100g / 10分钟，用差示扫描量热计测定的所述共聚物的程序温度温谱图（参见附图）在完全熔化后逐渐冷却，显示出 吸热峰（a）在75〜100℃的范围内，吸热峰（b）在120〜140℃的范围内，吸热峰（b）的吸热比与吸热峰 吸热峰（a）为0.03〜2.0。 混合物也由60-99份乙烯和α-烯烃的无规共聚物和1-40份高密度聚乙烯制成。 将共聚物或混合物挤出或吹塑以形成具有优异的包装膜所需物理性能的膜。

公开(公告)号：EP0346098A2

公开(公告)日：1989-12-13

申请号：EP89305752.1

申请日：1989-06-07

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

发明人： Imai, Akio ,  Sugimori, Kiyoyuki ,  Yamamoto, Keisaku ,  Takane, Minoru

IPC分类号： C08F210/02 ,  C08F4/68

CPC分类号： C08F210/00 ,  C08F4/68

摘要： Ethylene (35-60 mols) and a C 3-10 a-olefin (65-40 mols) are copolymerized at a temperature of 40 to 80°C with a catalyst of (a) an oxyvanadium compound, (b) an organoaluminium compound and (c) a halogenated hydrocarbon ester, e.g. a perchlorocrotonic acid ester, in a mol ratio of (b) to (a) of ≧ 2.5 and of (c) to (a) of ≧ 1.5, in a hydrocarbon solvent.
The polymer has a molar ratio of ethylene: a-olefin of 88:12 - 98:2, a number average mol. wt. of 35,000 - 80,000 and a ratio of wt. number average mol wt. of 1.8:1 - 3.0:1 determined by GPC. It has good transparency and is moldable to a film which is heat-sealable at low temperature.

摘要翻译： 乙烯（35-60摩尔）和C 3-10α-烯烃（65-40摩尔）在40至80℃的温度下与（a）氧化钒化合物的催化剂共聚合，（b）有机铝 化合物和（c）卤代烃酯，例如 （b）至（a）的摩尔比为> / = 2.5，（c）至（a）的摩尔比为> / = 1.5的全氯巴豆酸酯。 该聚合物的乙烯：α-烯烃的摩尔比为88:12-98:2，数均分子量。 重量。 为35,000〜80,000，重量比为 数均分子量 为1.8：1 - 3.0：1。 它具有良好的透明度，并且对于在低温下可热封的膜是可模塑的。

公开(公告)号：EP0265923A2

公开(公告)日：1988-05-04

申请号：EP87115816.8

申请日：1987-10-28

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED ,  SUMITOMO RUBBER INDUSTRIES, CO. LTD

发明人： Takao, Hiroyoshi ,  Yoshida, Nobuyuki ,  Imai, Akio ,  Tsuji, Mitsuji ,  Saito, Yuichi

IPC分类号： C08F297/04 ,  B60C1/00

CPC分类号： C08F297/044 ,  B60C1/0016 ,  Y10S152/905

摘要： A rubber composition suitable for tire treads having well-balanced excellent wet skid characteristic, ice skid characteristic and rolling characteristic, and an excellent processability, which comprises a rubber component containing at least 20 % by weight of a block copolymer consisting essentially of a block A and a block B, obtained by conducting polymerization of an aromatic vinyl compound and a conjugated diene compound in a hydrocarbon solvent in the presence of an organolithium initiator and modifying with a coupling agent, and satisfying the following conditions (A) to (E);

(A) the block A having a content of an aromatic vinyl compound of at most 5 % by weight and a content of 1,2-bonds in the conjugated diene component of at least 10 % by weight,
(B) the block B having a content of an aromatic vinyl compound of 25 to 50 % by weight and a content of 1,2-bonds in the conjugated diene component of at least 10 % by weight,
(C) a content of the block A in the block copolymer being from 20 to 80 % by weight,
(D) a content of the aromatic vinyl compound in the block copolymer being from 5 to 30 % by weight and a content of 1,2-bonds in the conjugated diene component of the block copolymer being from 20 to 60 % by weight, and
(E) at least 40 % by weight of the polymer chains of the block copolymer being a branched polymer formed by modification with a dicarboxylic acid diester.

摘要翻译： 适用于轮胎胎面的橡胶组合物具有平衡优异的防滑特性，防滑特性和滚动特性，以及优异的加工性能，其包括含有至少20重量％的基本上由块A组成的嵌段共聚物的橡胶组分 和通过在有机锂引发剂的存在下在烃溶剂中进行芳族乙烯基化合物和共轭二烯化合物的聚合而获得的嵌段B，并且用偶联剂进行改性，并满足下列条件（A）至（E）; （A）具有至多5重量％的芳族乙烯基化合物含量和共轭二烯组分中的1,2-键含量为至少10重量％的嵌段A，（B）嵌段B具有 芳香族乙烯基化合物的含量为25〜50重量％，共轭二烯成分中的1,2-键含量为10重量％以上，（C）嵌段共聚物中嵌段A的含量为 20〜80重量％，（D）嵌段共聚物中芳香族乙烯基化合物的含量为5〜30重量％，嵌段共聚物的共轭二烯成分中的1,2-键的含量为 20〜60重量％，（E）嵌段共聚物的聚合物链的至少40重量％为通过用二羧酸二酯改性形成的支链聚合物。 升

公开(公告)号：EP0153732A2

公开(公告)日：1985-09-04

申请号：EP85102103.0

申请日：1985-02-26

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

发明人： Imai, Akio ,  Okamoto, Yasushi ,  Saito, Masatoshi

IPC分类号： C08F136/06 ,  C08F4/48

CPC分类号： C08F136/06 ,  C08F4/48

摘要： A polybutadiene having an average 1,2-bond content of 18 to 32% by mole, a branched polymer chain content of 60% by weight or more and a Mooney viscosity at 100°C of 40 to 90, the viscosity of a 5% by weight concentration solution of this polybutadiene in styrene at 25°C being 60 to 90 cps, and a process for preparing the polybutadiene comprising starting the polymerization of 1,3-butadiene in an inert hydrocarbon solvent in the presence of a Lewis basic compound and an organolithium compound, the latter compound being in an amount of 0.5 to 3 millimoles per 100 g of 1,3-butadiene, at a temperature selected from the range of 30 to 80°C, carrying out the polymerization by controlling the temperature so that the temperature at the end of polymerization may be 5 to 40°C higher than the temperature at the start of polymerization, and adding to the resulting polymer solution a polyfunctional halogen compound in an amount of 0.6 to 1 equivalent per equivalent of the organolithium compound to further react the polymer with the polyfunctional halogen compound.