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公开(公告)号：JPH11158190A
公开(公告)日：1999-06-15
申请号：JP32846597
申请日：1997-11-28
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , FUKUNAGA TOSHIFUMI , FUJIMOTO JUNICHI
IPC: C07F7/18
Abstract: PROBLEM TO BE SOLVED: To provide a method for synthesizing a di(polycycloamino) dialkoxysilane such as a di(polycycloperhydroamino)di(hydrocarbonoxy)silane containing two polycycloperhydroamino groups having a sterically very bulky hydrocarbon amino group, etc. SOLUTION: Tetrachlorosilane is reacted with a polycyclic secondary amine such as perhydroindole, etc., and an alkali metal alkoxide or an alkaline earth metal alkoxide in the presence of a hydrogen chloride scavenger such as trimethylamine, etc., to produce a di(polycycloamino)dialkoxysilane.
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公开(公告)号：JPH11130780A
公开(公告)日：1999-05-18
申请号：JP30075697
申请日：1997-10-31
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , FUKUNAGA TOSHIFUMI , ARITOMI TADATOSHI
IPC: C07F7/04
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a di(polynuclear amino) dialkoxysilane having two polynuclear perhydroamino groups, the hydrocarbon amino group of which is sterically very bulky, e.g. di(polynuclear perhydroamino) di(hydrocarbon oxy)silane. SOLUTION: This method for producing a di(polynuclear amino)dialkoxysilane reacts dialkoxydichlorosilane with a secondary polynuclear amine in the presence of a hydrogen chloride scavenger. The particularly preferable hydrogen chloride scavengers include trimethylamine, triethylamine, tripropylamine, tributylamine, trihexylamine and dimethylphenylamine. The dialkoxydichlorosilane, e.g. dimethoxydichlorosilane, is obtained by reacting 1 molar equivalent pt. of tetrachlorosilane with 2 molar equivalent pts. of alcohol or metal alkoxide.
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公开(公告)号：JPH11106390A
公开(公告)日：1999-04-20
申请号：JP27108097
申请日：1997-10-03
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , FUKUNAGA TOSHIFUMI , SAKAGAMI SHUICHI
IPC: C07F7/18
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as a catalytic component for providing a highly stereospecific polyolefin, etc., in a high yield, by reacting a secondary polycyclic amine with an organomagnesium compound and reacting the reaction product with a tetraalkoxysilane. SOLUTION: A secondary polycyclic amine (e.g. perhydroisoquinoline) is reacted with an organomagnesium compound (e.g. n-butylethylmagnesium) or an organoaluminum compound (e.g. diethylaluminum chloride) to produce a di(polycyclic amino)magnesium [e.g. di(perhydroisoquinolino)magnesium] or a polycyclic amino aluminum compound (e.g. perhydroisoquinolinoethylaluminum chloride). Then these compounds are reacted with a tetraalkoxysilane to produce a di(polycyclic amino)dialkoxysilane. Consequently the objective aminosilane useful as a catalytic component for increasing the stereoregularity of a polymer in an α-olefin polymerization.
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公开(公告)号：JPH11106389A
公开(公告)日：1999-04-20
申请号：JP27107997
申请日：1997-10-03
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , FUKUNAGA TOSHIFUMI , FUJIMOTO JUNICHI
IPC: C07F7/18
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a (perhydroquinolino) (perhydroisoquinolino)dialkoxysilane useful as a catalytic component for increasing the stereoregularity of a polymer in an α-olefin polymerization. SOLUTION: Firstly a perhydroquinolino metal compound obtained by reacting an organometallic compound with perhydroquinoline is reacted with a tetraalkoxysilane to form a perhydroquinolinotrialkoxysilane. Secondly a perhydroisoquinolino metal compound obtained by reacting an organometallic compound with perhydroisoquinoline is reacted with the perhydroquinolinotrialkoxysilane to produce a (perhydroquinolino) (perhydroisoquinolino)dialkoxysilane.
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公开(公告)号：JPH10279737A
公开(公告)日：1998-10-20
申请号：JP8635197
申请日：1997-04-04
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , NARISAWA EIKO
Abstract: PROBLEM TO BE SOLVED: To produce a microscopically dispersed composite of a conjugated diene polymer and an olefin polymer and to provide a method for directly producing the composite by polymerization. SOLUTION: This composite of a conjugated diene polymer having about 0.01-2 μm dispersed average particle diameter thereof and an olefin polmer is produced by carrying out the polymerization of the olefin in the presence of the conjugated diene polymer and further a catalyst system comprising a combination of a metallocene compound of a group IV transition metal of the periodic table with at least one cocatalyst selected from an organometallic compound of a group I to III main element metal of the periodic table, an organoaluminumoxy compound, an ionic compound and a Lewis acid compound.
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Patent Agency Ranking
公开(公告)号：JPH09194525A
公开(公告)日：1997-07-29
申请号：JP753596
申请日：1996-01-19
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , IMAOKA KOJI , MURAKAMI MASATO , KAI YOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To obtain an olefin polymerization catalyst having high catalytic activity, and capable of giving high-molecular-weight polymers with narrow molecular weight distribution, consisting of a combination of a specific transition metal compound with a cocatalyst such as an organoaluminum oxy compound. SOLUTION: This olefin polymerization catalyst is a combination of (A) a group VIII transition metal compound of formula I or II [M is a group VIII transition metal; X is H, a halogen, 1-20C hydrocarbon, 1-20C hydrocarbon oxy group, etc.; L is a ligand with one or more hydrogen atoms substituted by hydrocarbon group(s), etc., in 2,2-bipyridine, 2,2-biquinoline, 1,10- phenanthroline, etc.; Pz is a (substituted) pyrazoyl; Q is a linkage group] with (B) a cocatalyst selected from (i) organometallic compounds such as methyllithium (the metal being group I-III element), (ii) organoaluminum oxy compounds, and (iii) ionic compounds each capable of forming a cationic transition metal compound by reaction with the component A (e.g. B(C6 F5 )4 ).
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公开(公告)号：JPH09136975A
公开(公告)日：1997-05-27
申请号：JP15522696
申请日：1996-06-17
Applicant: UBE INDUSTRIES
Inventor： YANO KENICHIRO , IGAI SHIGERU , FUJII KAZUHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain a substrate which can exhibit good conductivity even under high-temperature molding conditions or under severe service conditions by using a specified aromatic polyimide satisfying specified requirements as the starting material. SOLUTION: An aromatic polyimide is obtained by the polymerization and subsequent imidization of an aromatic tetracarboxylic acid component selected from 3,3',4,4'-biphenyltetracarboxylic acid, its dianhydride, a mixed system comprising these compounds and pyromellitic acid, its dianhydride, 3,3',4,4'- benzophenonetetracarboxylic acid, its dianhydride or 3,3',4,4'- diphenyltetracarboxylic acid or the like and an aromatic diamine component selected from among mixed systems such as p-phenylenediamine and diaminodiphenyl ether. This polyimide satisfies the following requirements: (i) the weight loss after heating to 550 deg.C for 60min in a helium gas is 5wt.% or below, (ii) the coefficient of linear expansion 30-300 deg.C is 0.4-2.0×10 cm/cm/ deg.C, and (iii) the tensile strength under immersion in liquid nitrogen is 20-60kg/mm .
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公开(公告)号：JPH0940714A
公开(公告)日：1997-02-10
申请号：JP19279395
申请日：1995-07-28
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , IKEUCHI HIROMICHI , YAMASHITA JUN
Abstract: PROBLEM TO BE SOLVED: To provide an aminoalkoxysilane useful as an α-olefin polymerization catalyst component having high activity and high stereoregular polymerization activity by specifying its chemical structure. SOLUTION: This aminoalkoxysilane is represented by formula I or II (R is methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, cyclopentyl or cyclohexyl; R , R and R are each a 1-8C hydrocarbon group; R is a cyclic amino; and n is 0 or 1). This compound can be used effectively as a component of a supported catalyst for polymerizing an α-olefin. Namely, a catalyst system comprising a solid catalyst component essentially consisting of Mg, Ti, a halogen and an electron donor, an organoaluminum compound and a dialkylaminoalkoxysilane of formula I is highly active and is desirable for obtaining a highly stereoregular polymer.
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公开(公告)号：JPH08165254A
公开(公告)日：1996-06-25
申请号：JP30880494
申请日：1994-12-13
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , IMAOKA KOJI , MITANI NOBUHIRO
Abstract: PURPOSE: To dimerize olefin in high activity and high selectivity in the presence of a nickel ylide complex and a halogen-containing Lewis-acidic compound. CONSTITUTION: An olefin is dimerized in the presence of a reaction product of (a) a zero-valued nickel compound [e.g. bis(1,5-cyclooctadiene)nickel], (b) an ylide compound expressed by R 3 P=CR -C(O)R (R is a 1-12C hydrocarbon; R and R are each H or a 1-12C hydrocarbon) and (c) at least one kind of phosphorus compound selected from the compounds expressed by R 3 P, R 3 PO and R 3 P=CR R (R and R are each a 1-12C hydrocarbon; R and R are each H, a 1-12C hydrocarbon or -SiR3 ) and a halogen-containing Lewis-acidic compound (e.g. diethylaluminum chloride) under flowing of an olefin gas in a solvent (e.g., toluene) at 5-110 deg.C and normal pressure-100kg/cm . A mixing molar ratio of the components (a), (b) and (c) is (0.5-1.5:0.5-1.5:0.5-1.5).
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公开(公告)号：JPH083215A
公开(公告)日：1996-01-09
申请号：JP9666495
申请日：1995-04-21
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , TAMURA MASANORI , IKEUCHI HIROMICHI , YAMASHITA JUN , SATO KATSUNORI
Abstract: PURPOSE:To enable the production of an alpha-olefin polymer having high activity, stereoregularity, and melt flowability. CONSTITUTION:An alpha-olefin is polymerized in the presence of a catalyst which comprises a solid catalyst component essentially contg. magnesium, titanium, a halogen, and an electron-donor, an organoaluminum compd., and an organosilicon compd. represented by the general formula: R nSi(OR )3-n, (NR R ) [wherein R is a 1-24C aliph. hydrocarbon group or an arom. hydrocarbon group; R'' is a 1-24C hydrocarbon group provided when R is arom., then R is not ethyl; R and R are each a 1-14C hydrocarbon group; and (n) is 0-2].
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