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公开(公告)号：JPS63297419A
公开(公告)日：1988-12-05
申请号：JP13139887
申请日：1987-05-29
Applicant: MITSUI PETROCHEMICAL IND
Inventor： SUGA KOUJIROU , TAKADA TOSHIMASA , TOMOSHIGE TORU
Abstract: PURPOSE:To provide the titled composition containing a specific imide-type prepolymer and a specific trifunctional epoxy compound, having improved adhesivity to glass cloth, metal, etc., without lowering the heat resistance and useful as an advanced composite material, a sealant, a substrate material, etc. CONSTITUTION:The objective composition contains (A) an imide-type prepolymer produced by reacting an unsaturated bisimide compound of formula I (D is bivalent group containing carbon-carbon double bond; A is >=2C bivalent group) with a diamine of formula H2N-B-NH2 (B is
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公开(公告)号：JPS63152613A
公开(公告)日：1988-06-25
申请号：JP29881286
申请日：1986-12-17
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TAKADA TOSHIMASA
IPC: C08G59/06
Abstract: PURPOSE:To obtain the titled trifunctional resin, capable of providing cured articles having excellent heat resistance as well as low modulus of elasticity and useful as molding and powder coating materials without blocking, by using a specific trisphenolic compound and (beta-methyl)epihalohydrin. CONSTITUTION:A trifunctional epoxy resin obtained from (A) a trisphenolic compound expressed by the formula (R1 is H, methyl or tert-butyl; R2 is tert- butyl; R3 and R4 are H or 1-4C alkyl), preferably 1,1,3-tris(2-methyl-4-hydroxy-5- tert-butylphenyl)butane, etc., and (B) a (beta-methyl)epihalohydrin.
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公开(公告)号：JPH10100161A
公开(公告)日：1998-04-21
申请号：JP25787296
申请日：1996-09-30
Applicant: MITSUI PETROCHEMICAL IND
Inventor： NAKAHARA TAKASHI , YAMAMOTO AKIO , TAKADA TOSHIMASA
Abstract: PROBLEM TO BE SOLVED: To prevent release of a surface of a mandrel in the case of removing it from a hose by forming the mandrel of 4-methyl-1-pentene polymer having an orientation coefficient of the surface measured by an X-ray of a specific value or less. SOLUTION: The mandrel is formed of 4-methyl-1-pentene polymer, and its orientation coefficient of the surface is 0.6 or less, preferably 0.2 to 0.58, or more preferably 0.4 to 0.55. In the case of this range, when the mandrel is drawn from a rubber hose after vulcanization, release of the surface of the mandrel in a thin layer state is little. A shape of the mandrel depends on a shape of the hose for its purpose, and is generally a pipe or rod shape. It is preferable from a point of heat resistance that content of copolymer component of the polymer is about 0.1 to less than about 20wt.%.
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公开(公告)号：JP2551626B2
公开(公告)日：1996-11-06
申请号：JP9251288
申请日：1988-04-14
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YASUDA KYOMI , TAKADA TOSHIMASA , SUZUKI TERUFUMI
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公开(公告)号：JPH0693052A
公开(公告)日：1994-04-05
申请号：JP24103892
申请日：1992-09-09
Applicant: MITSUI PETROCHEMICAL IND
Inventor： ABE YOSHIHARU , AINE TOSHIHIRO , TAKADA TOSHIMASA
IPC: C08F4/68 , C08F4/60 , C08F4/639 , C08F4/80 , C08F32/00 , C08F210/00 , C08F232/08
Abstract: PURPOSE:To provide a composition excellent in oil resistance and solvent resistance, containing boiling cyclohexane insolubles at a specified level or higher, useful for optical materials etc., comprising each specific sparingly soluble cyclic olefin copolymer and readily soluble one. CONSTITUTION:The composition >=4wt.% in boiling cyclohexane insolubles, comprising (A) a sparingly soluble cyclic olefin copolymer produced by copolymerization between (1) an alpha-olefin and (2) a cyclic olefin of formula I (n and r are each 0 or 1; m is 0 or positive integer; R -R , R and R are each H, halogen, hydrocarbon, etc.) or formula II (p and q are each 0 or 1; m and n are each 0-2; R -R are each H, halogen, aliphatic hydrocarbon, etc.) at the molar ratio of (47:53) to (60:40) in the presence of a soluble vanadium compound and an organoaluminum compound and (B) a readily soluble cyclic olefin copolymer produced by copolymerization between (3) an alpha-olefin and (4) at least one kind of cyclic olefin of the formula I or formula II at the molar ratio of (40:60) to (95:5).
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Patent Agency Ranking
公开(公告)号：JPH05287122A
公开(公告)日：1993-11-02
申请号：JP8399292
申请日：1992-04-06
Applicant: MITSUI PETROCHEMICAL IND
Inventor： MURATA KAZUHIKO , OKADA KEIJI , TOJO TETSUO , KAWASAKI MASAAKI , TAKADA TOSHIMASA
Abstract: PURPOSE:To obtain an electrically conductive rubber, composed of a vulcanizate containing a specific higher alpha-olefinic copolymer rubber and an electric conductivity imparter and excellent in dynamic fatigue resistance and the electric conductivity. CONSTITUTION:The objective electrically conductive rubber is composed of a vulcanizate containing (A) 100 pts.wt. higher alpha-olefinic copolymer rubber which is a copolymer composed of (i) a 6-20C alpha-olefin (preferably hexene-1, etc.), (ii) an alpha,omega-diene of formula I [(n) is 1-3; R and R are H or l-8C alkyl] (e.g. 1,4-pentadiene) and (iii) 0.01-30mol% nonconjugated diene of formula II [(n) is 1-5; R is 1-4C alkyl; R and R are R , with the proviso that R and R are not simultansouly H] (e.g. 4-methyl-1,4-hexadiene) at (95/5) to (50/50) molar ratio of the components (i) to (ii) and (B) 5-200 pts.wt. electric conductivity imparter (preferably carbon black). The intrinsic viscosity [eta] of the hither alpha-olefinic copolymer rubber (A) measured in decalin at 135 deg.C is 1-10dl/g.
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公开(公告)号：JPH04170430A
公开(公告)日：1992-06-18
申请号：JP29836390
申请日：1990-11-02
Applicant: MITSUI PETROCHEMICAL IND
Inventor： ZENITANI YURIMASA , TAKADA TOSHIMASA
Abstract: PURPOSE:To obtain a polyamide resin having a good hue and a high degree of polymn. by copolymerizing a specific dicarboxylic acid component with hexamethylenediamine in the presence of a hypophosphite and melt polymerizing the resulting oligomer in the presence of a specific stabilizer. CONSTITUTION:A dicarboxylic acid component comprising 50-95mol% 4-12C aliph. dicarboxylic acid (e.g. adipic acid) and 50-5mol% terephthalic acid is copolymerized with hexamethylenediamine in the presence of a hypophosphite to give an oligomer, which is melt polymerized in the presence of tetrakis(2,4-di- t-butylphenyl) 4,4'-biphenylenediphosphonite to give a polyamide resin having an increased degree of polymn. without detriment to its good hue.
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公开(公告)号：JPH0331740B2
公开(公告)日：1991-05-08
申请号：JP14224881
申请日：1981-09-11
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TAKADA TOSHIMASA , KANESHIGE NORIO
IPC: F16L9/12 , C08K3/04 , C08L23/00 , C08L23/08 , C08L101/00
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公开(公告)号：JPH0381318A
公开(公告)日：1991-04-05
申请号：JP21787089
申请日：1989-08-24
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YASUDA KIYOMI , SUZUKI TERUFUMI , TAKADA TOSHIMASA , KANEKO ISAO
Abstract: PURPOSE:To prepare an epoxy resin compsn. excellent in the mechanical and electrically insulating properties as well as in the heat resistance by compounding a specific polyfunctional epoxy resin, a highly halogenated bisphenol epoxy resin, and a bisphenol epoxy resin. CONSTITUTION:A heat-resistant, flame-retardant epoxy resin compsn. is prepd. by compounding a polyfunctional epoxy resin obtd. by the reaction of a trisphenol compd. of formula I [wherein R , R , and R are each independently a hydrogen atom or a 4C or lower alkyl group; n is 0 or 1; and Y is a group of formula II or III (wherein R , R , R , and R are each independently a hydrogen atom or a 4C or lower alkyl group)] with an epihalohydrin or beta- methylepihalohydrin; a highly halogenated bisphenol epoxy resin obtd. by the reaction of a halogenated bisphenol with an epihalohydrin or beta- methylepihalohydrin; and a bisphenol epoxy resin obtd. by the reaction of a bisphenol with epichlorohydrin or beta-methylepichlorohydrin.
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公开(公告)号：JPH02311513A
公开(公告)日：1990-12-27
申请号：JP13441389
申请日：1989-05-26
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YASUDA KIYOMI , SUZUKI TERUFUMI , TAKADA TOSHIMASA , KANEKO ISAO
Abstract: PURPOSE:To obtain the subject composition improved in heat resistance and does not decrease in its mechanical properties and electrical insulation properties even at high temperatures by mixing a specified polyepoxy resin with a lowly halogenated bisphenol epoxy resin. CONSTITUTION:A trisphenol compound (a) of formula I (wherein R are each H or 4C or lower alkyl; (n) is 0 or 1; Y is either of formulas II and III; and R are each R ) is condensed with (beta-methyl)epihalohydrin (b) to obtain a normally (semi)solid polyepoxy resin (A) having a softening point
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