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121. 发明专利

DE68909999D1 未知
公开(公告)号：DE68909999D1
公开(公告)日：1993-11-25
申请号：DE68909999
申请日：1989-04-26
申请人： SUMITOMO CHEMICAL CO
发明人： IMAI AKIO , SEKI TOMOAKI , YAMAMOTO KEISAKU
IPC分类号： B60C1/00 , C08C19/42
摘要： A process for preparing modified diene polymer rubbers having an increased impact resilience, a reduced hardness at low temperatures and an improved processability, and useful as rubber materials for automobile tires and other industries which comprises producing a conjugated diene polymer having alkali metal end or ends, and reacting the alkali metal-containing polymer with (a) a silicon or tin compound of the formula: RaMXb wherein R is an alkyl group, an alkenyl group, a cycloalkenyl group or an aromatic hydrocarbon group, M is silicon atom or tin atom, X is a halogen atom, a is 0, 1 or 2 and b is 2, 3 or 4, and (b) at least one member selected from the group consisting of a nitro compound; a phosphoryl chloride compound of the formula (1): wherein R , R , R and R are an alkyl group; an aminosilane compound of the formula (2): wherein R , R and R are an alkyl group or an alkoxyl group, R and R are an alkyl group, and n is an integer; an acrylamide compound of the formula (3): wherein R is hydrogen atom or methyl group, R and R are an alkyl group, and m is an integer; and an aminovinylsilane compound of the formula (4): where R , R , R , R and R are an alkyl group.

122. 发明专利

CA2039347A1 CATALYST FOR OLEFINIC HYDROCARBON POLYMERIZATION AND PROCESS FOR PRODUCING OLEFINIC HYDROCARBON POLYMER 未知
公开(公告)号：CA2039347A1
公开(公告)日：1991-09-30
申请号：CA2039347
申请日：1991-03-28
申请人： SUMITOMO CHEMICAL CO
发明人： SABA HAYATO , YAMAMOTO KEISAKU , SUGIMORI KIYOYUKI , WAKATSUKI KIZUKU , IMAI AKIO
IPC分类号： C08F4/60 , C08F4/68 , C08F10/00 , C08F2/06
摘要： An inert hydrocarbon solvent-soluble catalyst for polymerization of olefinic hydrocarbons and a process for producing an olefinic polymer using the same are disclosed, the catalyst being composed of (A) a reaction product obtained by reacting (a) at least one vanadium compound represented by formula: VO(OR)mX3-m wherein R represents a hydrocarbon group; X represents a halogen atom; and m represents a real number of from 0 to 3 t and (b) a dihydroxy hydrocarbon compound constituted of a straight chain hydrocarbon skeleton containing from 2 to 12 carbon atoms and having a hydroxyl group at each of both terminals thereof and at least one hydrocarbon branch bonded to said hydrocarbon skeleton in an inert hydrocarbon solvent at an (a) to (b) molar ratio of from 1:0.5 to 1:1.4 and (B) at least one organoaluminum compound represented by formula: R'nA?X'3-n wherein R' represents a hydrocarbon group; X' represents a halogen atom; and n represents a real number more than 0 and less than 3. Olefinic hydrocarbon polymers having narrow distributions of molecular weight and composition can be produced with high efficiency and high polymerization activity without being accompanied by obstruction or contamination of equipment due to precipitation of a catalyst.

123. 发明专利

CA1268281A PROCESS FOR PRODUCING THERMOPLASTIC ELASTOMERS 未知
公开(公告)号：CA1268281A
公开(公告)日：1990-04-24
申请号：CA501613
申请日：1986-02-11
申请人： SUMITOMO CHEMICAL CO
发明人： YOSHIDA NOBUYUKI , IMAI AKIO , SEKI TOMOAKI
IPC分类号： C08F297/00 , C08F297/04
摘要： A process for producing a thermoplastic elastomer comprising a block copolymer of the A-B-A' type, wherein A is a monovinyl aromatic hydrocarbon polymer block, B is a conjugated diolefin polymer block, and A' is either the same as A or a polymer block derived from a dialkenyl aromatic hydrocarbon or a dihalogenated hydrocarbon, which process comprises polymerizing a monovinyl aromatic hydrocarbon in a polymerization medium in the presence of an organomonolithium compound as a polymerization initiator, adding a conjugated diolefin to perform block copolymerization, and further adding a monovinyl aromatic hydrocarbon to perform polymerization or in the alternative, adding a dialkenyl aromatic hydrocarbon or a dihalogenated hydrocarbon to perform coupling, wherein the monomer components are used in such amounts that the weight ratio of (A + A') to B ranges from 10/90 to 65/35, and a chained aliphatic hydrocarbon solvent containing from 0.0001 to 0.1 wt% of a Lewis basic compound is used as the polymerization medium, is disclosed. According to the process of the invention, the desired thermoplastic elastomer having good physical properties is readily obtainable with high reproducibility.

124. 发明专利

BR8903393A 未知
公开(公告)号：BR8903393A
公开(公告)日：1990-02-13
申请号：BR8903393
申请日：1989-07-11
申请人： SUMITOMO CHEMICAL CO
发明人： NAITO YUKIO , MIYAZAKI KOHZOH , GOTOH YUJI , HAMBA MASASHI , IMAI AKIO , SUGIMORI KIYOYUKI
IPC分类号： B32B27/32 , C08F10/00 , C08F110/02 , C08F210/02 , C08F210/16 , C08F297/08 , C08J5/18 , C08L23/00 , C08L23/06 , C08L23/08 , C08L23/04
摘要： A polyethylene mixture has a density of from 0.900 to 0.930 g/cm and a melt flow rate of from 0.1 to 100 g/10 min., and comprises by weight (I) 60 to 99 parts of a random copolymer comprising ethylene and 2-10 mol% of a C3-10 alpha -olefin and having a density of 0.895 to 0.915 g/cm , the programmed-temperature thermogram of said copolymer (determined with a differential scanning calorimeter after being completely melted and then gradually cooled) showing an endothermic peak in a range of 75 DEG to 100 DEG C, preferably 80-95 DEG C, with the ratio of an endotherm at said peak to the total endotherm being at least 0.8, and (II) 1 to 40 parts of a high-density polyethylene having a density of at least 0.945 g/cm , the programmed-temperature thermogram of the high-density polyethylene (determined as aforesaid) showing an endothermic peak at 125 DEG C or higher, preferably 130 DEG C or higher, the sum of components (I) and (II) amounting to 100 parts. Films are formed from the mixture or composite films including such a film, and these are useful for packaging. Preparation of copolymer (I) by use of a V catalyst system is described.

125. 发明专利

CA1258549A DIENE ELASTOMER COMPOSITIONS 未知
公开(公告)号：CA1258549A
公开(公告)日：1989-08-15
申请号：CA497072
申请日：1985-12-06
申请人： SUMITOMO CHEMICAL CO
发明人： TAKAO HIROYOSHI , YOSHIDA NOBUYUKI , IMAI AKIO
IPC分类号： C08L7/00 , B60C1/00 , C08L9/00 , C08L9/06 , C08L21/00
摘要： DIENE ELASTOMER COMPOSITIONS Disclosed is a diene elastomer composition especially suitable as tread rubber of tires which has low rolling resistance and high wet grip in combination. This elastomer composition contains a rubber material comprising an elastomeric polymer component of a butadiene polymer and/or a styrene-butadiene copolymer and a rubbery component. The elastomeric polymer is produced by using an organolithium compound as a polymerization initiator, and has a long chain end concentration (LCEC) of 1.5 or less as defined by the following formula: LCEC = ?.beta.i x (.alpha. x 105) / (MW)i wherein .alpha.: total number of terminal groups in long chain molecules per polymer, MW: a value obtained from intrinsic viscosity of the polymer as measured in toluene at 30.degree.C by the following formulas: MW = 70 660 x ¢n!1.232 for styrene-butadiene copolymer, MW = 79,167 x ¢n!1.443 for butadiene polymer, .beta.i: weight fraction of component i when MW = (MW)i.

126. 发明专利

FI893348A0 未知
公开(公告)号：FI893348A0
公开(公告)日：1989-07-10
申请号：FI893348
申请日：1989-07-10
申请人： SUMITOMO CHEMICAL CO
发明人： NAITO YUKIO , MIYAZAKI KOHZOH , GOTOH YUJI , HAMBA MASASHI , IMAI AKIO , SUGIMORI KIYOYUKI
IPC分类号： B32B27/32 , C08F10/00 , C08F110/02 , C08F210/02 , C08F210/16 , C08F297/08 , C08J5/18 , C08L23/00 , C08L23/06 , C08L23/08 , C08F
摘要： A polyethylene mixture has a density of from 0.900 to 0.930 g/cm and a melt flow rate of from 0.1 to 100 g/10 min., and comprises by weight (I) 60 to 99 parts of a random copolymer comprising ethylene and 2-10 mol% of a C3-10 alpha -olefin and having a density of 0.895 to 0.915 g/cm , the programmed-temperature thermogram of said copolymer (determined with a differential scanning calorimeter after being completely melted and then gradually cooled) showing an endothermic peak in a range of 75 DEG to 100 DEG C, preferably 80-95 DEG C, with the ratio of an endotherm at said peak to the total endotherm being at least 0.8, and (II) 1 to 40 parts of a high-density polyethylene having a density of at least 0.945 g/cm , the programmed-temperature thermogram of the high-density polyethylene (determined as aforesaid) showing an endothermic peak at 125 DEG C or higher, preferably 130 DEG C or higher, the sum of components (I) and (II) amounting to 100 parts. Films are formed from the mixture or composite films including such a film, and these are useful for packaging. Preparation of copolymer (I) by use of a V catalyst system is described.

127. 发明专利

DE2458931A1 未知
公开(公告)号：DE2458931A1
公开(公告)日：1975-11-06
申请号：DE2458931
申请日：1974-12-12
申请人： SUMITOMO CHEMICAL CO
发明人： MIKI TAMOTSU , IMAI AKIO , KOBAYASHI YUJI
IPC分类号： C08F297/04 , C08L53/02 , C08F6/12 , C08J3/02 , C08J3/14

128. 发明专利

JPS594633A Diene type copolymeric composition and tire prepared using said composition in tread 失效
标题翻译：二苯乙烯类共聚物组合物和轮胎在TREAD中使用合成组合物
公开(公告)号：JPS594633A
公开(公告)日：1984-01-11
申请号：JP11473482
申请日：1982-06-30
申请人： Sumitomo Chem Co Ltd , Sumitomo Rubber Ind Ltd
发明人： YAMAMOTO KEISAKU , YOSHIDA MASASHI , OKAMOTO YASUSHI , IMAI AKIO , SEKI TOMOAKI , FURUKAWA HIROSHI , SAITOU YUUICHI
IPC分类号： C08L7/00 , B60C1/00 , B60C11/00 , C08L9/06 , C08L21/00
CPC分类号： Y02T10/862
摘要： PURPOSE: A composition, prepared by incorporating three types of copolymers of a specific vinyl aromatic compound and butadiene, having improved tear strength and tackiness without deteriorating the high wet skid resistance, low rolling resistance and processability, and useful for treads in tires.
CONSTITUTION: A diene type copolymeric composition prepared by incorporating three types of copolymers (A), (B) and (C) of a vinyl aromatic compound, preferably styrene, and butadiene to give 1W15wt% copolymer (C) in the total amount of the three copolymers and 70wt% or more copolymer (B) based on the total amount of the copolymers (A) and (B). The glass transition temperature of the resultant composition is -50°C or above. The copolymer (A) is a linear polymer having 1.0W4.0 intrinsic viscosity, and the copolymer (B) is a branched polymer in which the copolymer (A) is bonded with a trifunctional or tetrafunctional binder. The amount of the bonded vinyl aromatic compound in the copolymers (A) and (B) is 15W35wt%, and the amount 1,2-bonds in the bonded butadiene is 30W60mol%. The copolymer (C) is a linear or branched polymer having 0.1W0.8 intrinsic viscosity.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过结合三种类型的特定乙烯基芳族化合物和丁二烯的共聚物制备的组合物，其具有改善的撕裂强度和粘合性，而不会降低耐高湿滑性，低滚动阻力和加工性，并且可用于轮胎中的胎面。构成：通过将乙烯基芳族化合物，优选苯乙烯和丁二烯的三种类型的共聚物（A），（B）和（C）并入，得到1-15重量％的共聚物（C）的总量中制备的二烯型共聚物组合物的共聚物和70重量％以上的共聚物（B），基于共聚物（A）和（B）的总量。所得组合物的玻璃化转变温度为-50℃或更高。共聚物（A）是具有1.0-4.0特性粘度的线性聚合物，共聚物（B）是共聚物（A）与三官能或四官能粘合剂结合的支链聚合物。共聚物（A）和（B）中的键合乙烯基芳族化合物的量为15〜35重量％，结合丁二烯中的1,2-键的量为30〜60摩尔％。共聚物（C）是具有0.1-0.8特性粘度的直链或支链聚合物。

129. 发明专利

JPS57123237A Butadiene-isoprene copolymer composition 失效
标题翻译：丁二烯共聚物组合物
公开(公告)号：JPS57123237A
公开(公告)日：1982-07-31
申请号：JP1053781
申请日：1981-01-26
申请人： Sumitomo Rubber Ind Ltd
发明人： FURUKAWA HIROSHI , SAITOU YUUICHI , IMAI AKIO , YAMAMOTO KEISAKU , SEKI TOMOAKI , YOSHIDA MASASHI
IPC分类号： C08L7/00 , C08F36/00 , C08F236/08 , C08L9/00 , C08L21/00
摘要： PURPOSE: The titled composition with improved wet skid resistance and a dynamical heat evolving property, obtd. by use of a butadiene-isoprene copolymer of a specified or higher glass transition temp. and Mooney viscosity in a specified range as a rubber component.
CONSTITUTION: In the preparation of a butadiene-isoprene copolymer by the copolymn. of a butadiene monomer with an isoprene monomer in a non-polar hydrocarbon solvent, a catalyst system consisting of a combination of Li with a Lewis base is used as a polymn. catalyst. A copolymer of glass transition temp. ≥-50°C and molecular wt. such that the copolymer has Mooney viscosity of 20W120 at 121°C, is prepd. by adjusting a ratio of the added Lewis base to the Li and the polymn. temp. and a ratio of the added butadiene monomer to the added isoprene monomer, and the titled composition is prepd. by incorporating said copolymer as a rubber component.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：具有改进的抗湿滑性和动力演变性能的标题组合物。通过使用规定的或更高的玻璃化转变温度的丁二烯 - 异戊二烯共聚物。和作为橡胶组分的指定范围内的门尼粘度。构成：在共聚物中制备丁二烯 - 异戊二烯共聚物。的丁二烯单体与异戊二烯单体在非极性烃溶剂中的混合物，将由Li与路易斯碱的组合组成的催化剂体系用作聚合物。催化剂。玻璃化转变温度共聚物 > = -50℃，分子量使共聚物在121℃下的门尼粘度为20-120℃，制备。通过调节添加的路易斯碱与Li和聚合物的比例。温度和添加的丁二烯单体与所添加的异戊二烯单体的比例，并且标题化合物是制备的。通过引入所述共聚物作为橡胶组分。

130. 发明专利

JPS5790030A TIRE TREAD RUBBER COMPOSITION 失效
公开(公告)号：JPS5790030A
公开(公告)日：1982-06-04
申请号：JP16783480
申请日：1980-11-27
申请人： SUMITOMO RUBBER IND
发明人： FURUKAWA HIROSHI , SAITOU YUUICHI , IMAI AKIO , YAMAMOTO KEISAKU , TAKAO HIROMI , YOSHIDA MASASHI
IPC分类号： C08L7/00 , B60C1/00 , B60C11/00 , C08L9/00 , C08L21/00
摘要： PURPOSE:A tire tread rubber composition excellent both in rolling resistance and wet grip, prepared by blending butadiene rubbers having different 1,2-addition contents and prepared by at least two types of solution polymerization. CONSTITUTION:The titled composition is obtained by blending at least two types of butadiene rubbers containing different 1,2-addition contents, prepared by the living polymerization using an organic alkali metal salt compound as an initiator and a Lewis base as a 1,2-addition content regulator so that the weighted arithmetic mean of the 1,2-addition content is not less than 40wt% and the difference in 1,2-addition content between (I) a butadiene rubber having the lowest 1,2- addition content and (II) a butadiene rubber having the highest 1,2-addition content is at least 20wt%. It is preferred that rubbers (I) and (II) both have a limiting viscosity >=2.0, as measured in a toluene solution at 30 deg.C, and the mixig ratio, rubber (I)/rubber (II), is 0.1-10 by weight.

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