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公开(公告)号：JPH10237131A
公开(公告)日：1998-09-08
申请号：JP4604297
申请日：1997-02-28
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , NARISAWA EIKO
IPC: C08F210/02 , C08F236/06
Abstract: PROBLEM TO BE SOLVED: To obtain a new compound containing specific five kinds of units in specific relationships and usable as a thermoplastic resin or an elastomer and also usable as a composite material and physical property-improving material for various kinds of thermoplastic resin, etc. SOLUTION: This compound contains Xc % cis-unsaturated bond unit constituting a polymer main chain, XT% trans-unsaturated bond unit, Y% side chain vinyl bond unit, Zc % cis-cyclopentyl unit and ZT% trans-cyclopentyl unit so as to satisfy the relationship of the formula 5
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公开(公告)号：JPH1030088A
公开(公告)日：1998-02-03
申请号：JP18601496
申请日：1996-07-16
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , NARISAWA EIKO
Abstract: PROBLEM TO BE SOLVED: To obtain a heat regenerative medium capable of storing heat in a high efficiency by dispersing a heat regenerative substance utilizing a latent heat of crystal transition in solid state into a dispersing medium to form a slurry. SOLUTION: This heat regenerative medium is obtained by dispersing (A) a heat regenerative substance utilizing a latent heat of crystal transition in a solid state [e.g. trans-1,4-polybutadiene (A1 ) having >=95mol% trans-1,4 bond, 10,000-1,000,000 weight average molecular weight, 50-80 deg.C transition temperature from a low temperature crystalline structure to a high temperature crystalline structure and >=70J/g enthalpy of the crystalline transition] into (B) a dispersing medium (e.g. water, a silicone oil, ethylene glycol or a liquid paraffin when the component A is the A1 ) to form a slurry. A heat transport system having a good heat transporting efficiency can be formed by using the heat regenerative medium.
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公开(公告)号：JPH09324009A
公开(公告)日：1997-12-16
申请号：JP8635297
申请日：1997-04-04
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , IMAOKA KOJI , KAI YOSHIYUKI , YAMASHITA JUN , TSUJIMOTO NOBUHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain a conjugated diene having a controlled microstructure in high activity by using a catalyst prepared by combining a specified compound of a group V transition metal in the periodic table with an ionic compound and/or an aluminoxane. SOLUTION: This catalyst comprises a group V transition metal compound represented by the general formula: MR(O)X2 (wherein M is a group V transition metal in the periodic table; R is cyclopentadienyl, a substituted cyclopentadienyl, indenyl, a substituted indenyl, fluorenyl or a substituted fluorenyl; X is hydrogen, a halogen, a 1-20C hydrocarbon group, an alkoxyl or amino) and an ionic compound of a non-coordinative anion with a cation and/or an aluminoxane. Monomers which can be polymerized by using this catalyst are exemplified by α-olefins, cycloolefins and conjugated olefins. Among them, conjugated diene compound monomers are particularly desirable.
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公开(公告)号：JPH09316118A
公开(公告)日：1997-12-09
申请号：JP13854996
申请日：1996-05-31
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , MITANI NOBUHIRO , IMAOKA KOJI
IPC: C08F4/64 , C08F4/60 , C08F4/659 , C08F4/6592 , C08F236/04
Abstract: PROBLEM TO BE SOLVED: To copolymerize an olefin with a conjugated diene in high catalytic activity and in a freely controllable manner by using a catalyst obtained from a specified transition metal compound and a specified promoter. SOLUTION: An olefin is copolymerized with a conjugated diene in the presence of a catalyst comprising a transition metal compound represented by the formula: (L-Y-Z)MXa [wherein M is a group IV transition metal; X is H, a halogen, a 1-12C hydrocarbon (oxy or amino) group; L is a (substituted) pentadienyl group which forms a π bond with M; Z is a hetero atom ligand such as O, S, N or P; Y is a group through which L and Z are bridged; and n is 1 or 2] and at least one promoter selected among organometallic compounds of main metals of group I to III in the periodic table, organoaluminumoxy compounds, ionic compounds which react with transition metal compounds to form cationic transition metal compounds, and Lewis acid compounds which react with transition metal compounds to form cationic transition metal compounds.
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公开(公告)号：JPH09268208A
公开(公告)日：1997-10-14
申请号：JP16954796
申请日：1996-06-28
Applicant: UBE INDUSTRIES
Inventor： TSUJIMOTO NOBUHIRO , SUZUKI MICHINORI , IGAI SHIGERU , NARISAWA EIKO
IPC: F28D20/00 , C08F36/00 , C08F36/06 , C08F136/06
Abstract: PROBLEM TO BE SOLVED: To provide a new regenerative material capable of readily molding and processing, keeping the shape during use and enabling heat storage at a definite temperature under low temperature and having large calorie. SOLUTION: This trans-1,4-polybutadiene has (1) >=95mol.% content of trans-1,4-bond, (2) =70/g change >=Hf in enthalpy of fusion measured by a differential scanning calorimeter and (4) >=70J/g transition enthalpy change >=H of crystal measured by the differential scanning calorimeter. This heat storage material is obtained by using the material.
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Patent Agency Ranking
公开(公告)号：JPH09143215A
公开(公告)日：1997-06-03
申请号：JP30125795
申请日：1995-11-20
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , IMAOKA KOJI , MURAKAMI MASATO , KAI YOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a new single-site catalyst system for the polymerization of an olefin using an alkaline earth metal compound. SOLUTION: This olefin polymerization catalyst consists of a combination of (A) a compound of an alkaline earth metal of the group II of the periodic table and expressed by the formula L2-m MXm (M is an alkaline earth metal of the group II of the periodic table; X is H, a halogen, a 1-12C hydrocarbon group or a 1-12C hydrocarbonoxy group; L is cyclopentadienyl, a substituted cyclopentadienyl, pyrazoylborate group or carborane group; (m) is 0-1) with (B) an organometallic compound of the principal element of the groups I to III of the periodic table.
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公开(公告)号：JPH08301920A
公开(公告)日：1996-11-19
申请号：JP10843395
申请日：1995-05-02
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , IKEUCHI HIROMICHI , YAMASHITA JUN
Abstract: PURPOSE: To obtain an α-olefin polymer having a high activity and being capable of giving an α-olefin polymer having a high stereoregularity and a broad molecular weight distribution. CONSTITUTION: A process for polymerizing an α-olefin in the presence of a catalyst comprising a solid catalyst component [A] essentially consisting of magnesium, titanium, halogen and an electron donor, an organoaluminum compound component [B], an organosilicon compound component [C] represented by the general formula: Si(OR )2 (NR R )2 (wherein R , R and R are each a 1-10C hydrocarbon group), and another organosilicon compound component [D].
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公开(公告)号：JPH07278226A
公开(公告)日：1995-10-24
申请号：JP11301194
申请日：1994-05-26
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , TAMURA MASANORI , IKEUCHI HIROMICHI , SHIMOMURA YASUSHI , ISHII MASAYOSHI
Abstract: PURPOSE:To obtain the title composition which has a high melting point and a high crystallization temperature, can be used as a structural material excellent in heat resistance and mechanical strengths, and can be molded into a film in which the nucleator serves to make the crystals finer and improve the transparency. CONSTITUTION:The title composition is prepared by adding 10wt.ppm. nucleator polymer to a crystalline polypropylene and has an Mw/Mn ratio (Mw is the average molecular weight of the crystalline polypropylene, and Mn is the number-average molecular weight) of 3 or below.
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公开(公告)号：JPH07258325A
公开(公告)日：1995-10-09
申请号：JP5072294
申请日：1994-03-22
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , TAMURA MASANORI , IKEUCHI HIROMICHI , SATO KATSUNORI
Abstract: PURPOSE:To provide a process for manufacturing a highly stereoregular and a highly melt-flowable alpha-olefin polymer. CONSTITUTION:An alpha-olefin is polymerized by using a catalyst comprising (A) a solid catalytic component composed essentially of magnesium, titanium, a halogen atom and an aromatic ester, (B) an organoaluminum compound, and (C) cyclopentylethyldimethoxy-silane.
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公开(公告)号：JPH06136073A
公开(公告)日：1994-05-17
申请号：JP28885892
申请日：1992-10-27
Applicant: UBE INDUSTRIES
Inventor： IGAI SHIGERU , TAMURA MASANORI , SUZUKI KAZUTAKA , YAMADA SHINICHIRO
IPC: C08F4/626 , C08F4/60 , C08F4/80 , C08F297/08
Abstract: PURPOSE:To obtain in high activity a high-molecular weight rubbery propylene block copolymer with high rigidity, excellent in impact strength by two-step polymerization between propylene and another alpha-olefin using each specific catalyst. CONSTITUTION:Firstly, in the presence of a catalyst composed of (A) a solid catalytic component essentially comprising Mg, Ti, halogen and electron donor, (B) an organoaluminum compound (pref. trialkylaluminum) and (C) a silicate compound (pref. cyclohexylmethyldimethoxysilane), propylene (and a small amount of another alpha-olefin) is polymerized. Second, in the 2nd step, (D) a piperidine compound (pref. 2,2,6,6-tetramethylpiperidine) is added to the above reaction system without deactivating the above catalyst to conduct a polymerization between the propylene and the rest of the other alpha-olefin. The component A is pref. prepared by reaction of AlCl3 with e.g. tetraethoxysilane, a Grignard compound, o-phthalic diester and e.g. TiCl4, successively.
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