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公开(公告)号：JPH06329737A
公开(公告)日：1994-11-29
申请号：JP12016893
申请日：1993-05-21
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , TAMURA MASANORI , IKEUCHI HIROMICHI , YAMADA SHINICHIRO
IPC: C08F297/08
Abstract: PURPOSE:To provide the title copolymer easily moldable, excellent in mechanical properties such as rigidity and tensile strength, transparency and surface properties and capable of being processed at an increased molding speed. CONSTITUTION:The copolymer comprising a polypropylene component being insoluble in p-xylene at room temperature and having a melt flow index of 30 or above, an Mw/Mn ratio of 8 or greater, a melting point of 165 deg.C or above, a crystallization temperature of 117 deg.C or above and a crystalline melting heat of 107mJ/mg or above and a propylene/alpha-olefin copolymer component being soluble in p-xylene at room temperature and having an intrinsic viscosity of 5 or above and having a melt flow index of 10 or above is provided.
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公开(公告)号：JPH05214034A
公开(公告)日：1993-08-24
申请号：JP6275192
申请日：1992-02-04
Applicant: UBE INDUSTRIES
Inventor： YANO TAKEFUMI , IGAI SHIGERU , YOSHIKIYO MOTOZO
IPC: C08F4/658 , C08F4/60 , C08F210/00 , C08F210/16
Abstract: PURPOSE:To stably obtain an ethylenic copolymer excellent in flowability, handleability, etc., by copolymerizing ethylene and an alpha-olefin in the presence of a catalyst comprising a specific solid catalyst component and an organic Al compound component. CONSTITUTION:A porous inorganic oxide (b) is impregnated with a Grignard compound (c) represented by formula I (wherein R is a 1-8C alkyl and X is a halogen). A product of the reaction of an aluminum halide with an organosilicon compound (d) represented by formula II (wherein R is a 1-8C alkyl or phenyl, R is a 1-8C alkyl, and m is 0 or 1-3) is added to the resulting oxide (b), and the reactants are allowed to react to produce a support (h). This support (h) is brought into contact with a titanium compound (e) represented by formula III (wherein R is a 1-8C alkyl or phenyl, X is a halogen, and n is 0 or 1-4) to produce a solid catalyst component (i). Ethylene is copolymerized with an alpha-olefin (e.g. propylene) in the presence of a catalyst obtained from this solid catalyst component (i) and an organoaluminum compound component (g), thereby giving an ethylene copolymer.
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公开(公告)号：JPH01126257A
公开(公告)日：1989-05-18
申请号：JP28211887
申请日：1987-11-10
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU
Abstract: PURPOSE:To mold high-temp. superconductive ceramics having high strength and high-current density by mixing high-temp. superconductive ceramics powder having a specific particle size with an org. binder and granulating the mixture to the granule of a specific grain size, then press molding such granules at the time of making the title product. CONSTITUTION:The raw material powder of the high-temp. superconductive ceramics consisting of the oxide of rare earth element-alkaline earth element- copper is pulverized by a ball mill, etc., to
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公开(公告)号：JPS646641B2
公开(公告)日：1989-02-06
申请号：JP17903281
申请日：1981-11-10
Applicant: UBE INDUSTRIES
Inventor： UENO HARUO , YANO TAKEFUMI , INOE TOKUJI , IGAI SHIGERU , KAI YOSHUKI , SHIMIZU MICHIMASA , TAMURA MASANORI
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公开(公告)号：JPS62115005A
公开(公告)日：1987-05-26
申请号：JP25469085
申请日：1985-11-15
Applicant: UBE INDUSTRIES
Inventor： YANO TAKEFUMI , IGAI SHIGERU , KAI YOSHIYUKI
Abstract: PURPOSE:To obtain atactic polypropylene in high yields per unit catalyst used in the polymerization reaction, by polymerizing propylene in the presence of a catalyst obtained from a specified solid catalyst component and an organoaluminum compound. CONSTITUTION:A reaction product between an aluminum halide and a silicon compound of formula I (wherein R and R' are each a hydrocarbon group) is reacted with a Grignard compound of formula II (wherein R is a 1-10C alkyl and X is a halogen). A solid reaction product obtained by reacting the above obtained support with a titanium compound of formula III (wherein R is a 1-10C alkyl or phenyl) is reacted with a compound of formula IV (wherein R is a 1-10C alkyl and X is a halogen). Propylene is polymerized in the presence of a catalyst obtained from the obtained solid catalyst component and an organoaluminum compound of formula V (wherein R is H or a 1-8C alkyl) to obtain the purpose atactic polypropylene.
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Patent Agency Ranking
公开(公告)号：JPS61204203A
公开(公告)日：1986-09-10
申请号：JP4457885
申请日：1985-03-08
Applicant: UBE INDUSTRIES
Inventor： YANO TAKEFUMI , IGAI SHIGERU , KAI YOSHIYUKI
Abstract: PURPOSE:To produce polyethylene having low halogen content in high productivity even at a high-temperature and high-pressure condition without preparing ethane as a by-product, by polymerizing ethylene in the presence of a specific catalyst under a specific condition. CONSTITUTION:Ethylene or a mixture of ethylene and >=3C alpha-olefin is polymerized in the presence of a catalyst obtained from (A) a solid component comprising Mg, a halogen, and a transition metal as essential components, and (B) a reaction product of an Al compound (e.g., trimethylaluminum, etc.) shown by the formula AlRn H3-n (R is 1-20C hydrocarbon; n is 2-3) and an organic carboxylic acid (e.g., acetic acid, propionic acid, etc.) shown by the formula R COOH (R is as defined for R ) at >=125 deg.C at 250kg/cm .
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公开(公告)号：JPS60147405A
公开(公告)日：1985-08-03
申请号：JP348484
申请日：1984-01-13
Applicant: UBE INDUSTRIES
Inventor： YANO TAKEFUMI , IGAI SHIGERU , KAI YOSHIYUKI
Abstract: PURPOSE:To make it possible to feed a catalyst component in a constant amount in a constant amount to a reactor and obtain odorless ethylenic polymer of uniform quality in remarkably improved yield, by polymerizing ethylene in the presence of a specific liquid catalyst under medium - low pressure conditions. CONSTITUTION:Ethylene or a mixture thereof with a >=3C alpha-olefin is polymerized in the presence of a catalyst obtained from two components of (A) a titanium-containing solution prepared by bringing magnesium 2-ethylhexanoate into contact with a titanium compound of formula I (X is Cl, Br or I; R is 1-20C hydrocarbon; m is 0-4) in the presence of a hydrocarbon solvent and (B) an organoaluminum compound of formula II (X is the same atom as X ; R is 1- 12C alkyl or phenyl; 1 , preferably 10- 100kg/cm pressure.
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公开(公告)号：JPS59230005A
公开(公告)日：1984-12-24
申请号：JP10500683
申请日：1983-06-14
Applicant: UBE INDUSTRIES
Inventor： YANO TAKEFUMI , IGAI SHIGERU , TAMURA MASANORI
Abstract: PURPOSE:To produce the titled compound using a highly active catalyst having short induction period of the polymerization reaction, and obtained by compounding an organo-Al compound with a solid prepared by contacting a Ti compound with a reaction product of a specific aluminosiloxane and a Grignard com pound. CONSTITUTION:Ethylene or a mixture of ethylene and a >=3C alpha-olefine is polymerized in a tubular reactor at >=125 deg.C and >=200kg/cm pressure in the presence of a catalyst composed of (A) a solid catalyst component prepared by contacting (i) a titanium compound of formula II (n is 0-4) with (ii) a solid component obtained by the reaction of (a) an aluminosiloxy compound of formula I (X is halogen) with (b) a Grignard compound of formula RMgX (R is 1-8C hydrocarbon group) and (B) an organo-aluminum compound of formula III (m is 1-3).
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公开(公告)号：JPS59226008A
公开(公告)日：1984-12-19
申请号：JP9958283
申请日：1983-06-06
Applicant: UBE INDUSTRIES
Inventor： YANO TAKEFUMI , INOUE TOKUJI , IGAI SHIGERU
Abstract: PURPOSE:To obtain the titled polymer without causing the precipitation of the Ti component of the polymerization catalyst, by using a catalyst composed of an organic Al compound and a solution obtained by treating a reaction product of a specific Al compound and an Si compound successively with a Grignard reagent, a hydroxyl compound and a Ti compound. CONSTITUTION:Ethylene or a mixture of ethylene and >=3C alpha-olefin is polymmerized under a pressure of >=200kg/cm at >=125 deg.C in the presence of a catalyst composed of (A) a Ti-containing solution prepared by (1) reacting an organic Al compound of formula I (R is 1-8C alkyl; X is halogen; l is 0-3) with an Si compound of formula II (R and R are 1-8C alkyl or phenyl; m is 0-4), and (2) treating the reaction product successively with a Grignard compound of formula R MgX (R is 1-8C alkyl or phenyl; X is halogen), a hydroxyl compound of formula R OH (R is 4-20C alkyl or phenyl) and a Ti compound of formula III (R is 1-20C alkyl or phenyl; X is halogen).
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公开(公告)号：JPS58168604A
公开(公告)日：1983-10-05
申请号：JP5004282
申请日：1982-03-30
Applicant: UBE INDUSTRIES
Inventor： UENO HARUO , YANO TAKEFUMI , INOUE TOKUJI , IGAI SHIGERU , SHIMIZU MICHIMASA , KAI YOSHIYUKI , TAMURA MASANORI
Abstract: PURPOSE:To produce a low Q-value poly-alpha-olefin in high yields, by polymerizing an alpha-olefin in the presence of a catalyst prepared from a specified solid catalytic component, an organoaluminum compound and an aromatic carboxylate ester. CONSTITUTION:A poly-alpha-olefin is produced by polymerizing 3 C or higher alpha- olefin in the presence of a catalyst prepared from (A) a solid catalytic component obtained by contacting a titanium tetrahalide with a contact solid obtained either by contacting a carrier with a Ti compound of formula III (wherein R is a 1-6C alkyl, or phenyl, X is a halogen and m is 1-3) and then with an aromatic carboxylate ester, or by contacting it with both a compound of formula III and an aromatic carboxylate ester, said carrier being prepared by reacting an aluminum halide with a silicon compound of formulaI(wherein R is a 1-8C alkyl or phenyl, R is a 1-8C alkyl and n is 0-3) and reacting the reaction product with a Grignard compound of formula II (wherein R is a 1-8C alkyl and X is a halogen), (B) an organoaluminum compound of formula IV (wherein R is a 2-6C alkyl) and (C) an aromatic carboxylate ester.
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