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51. 发明专利

JPH093325A POLYPHENYLENE SULFIDE RESIN COMPOSITION 失效
公开(公告)号：JPH093325A
公开(公告)日：1997-01-07
申请号：JP15009695
申请日：1995-06-16
申请人： MITSUBISHI CHEM CORP
发明人： TANAKA TOMOHIKO , OMURA HARUO
IPC分类号： C08K3/10 , C08L81/00 , C08L81/02 , C08L81/06
摘要： PURPOSE: To markedly improve the compatibility between polyphenylene sulfide and a polysulfone, otherwise incompatible with each other, to thereby give a thermoplastic resin compsn. in which the sizes of dispersed particles are fine and which gives a molded item excellent in stiffness, appearance, and impact strength by using an alkali metal salt. CONSTITUTION: This compsn. contains 10-90 pts.wt. polyphenylene sulfide, 90-10 pts.wt. polysulfone, and an alkali metal salt in an amt. of 0.01-10wt.% of the sum of the foregoing two resins.

52. 发明专利

JPH07145309A THERMOPLASTIC RESIN COMPOSITION 失效
公开(公告)号：JPH07145309A
公开(公告)日：1995-06-06
申请号：JP27436893
申请日：1993-11-02
申请人： MITSUBISHI CHEM CORP
发明人： OMURA HARUO , TANAKA TOMOHIKO
IPC分类号： C08K3/18 , C08K5/49 , C08L71/12 , C08L81/02
摘要： PURPOSE:To obtain the subject composition having excellent compatibility and giving a molding excellent in mechanical strength, high-temp. rigidity, and appearance by mixing a specific poly(phenylene sulfide) resin with a poly(phenylene ether), a phosphite compound, and a base in a given proportion. CONSTITUTION:This composition comprises 100 pts.wt. resin (a), 0.1-10 pts.wt. phosphite or phosphonite compound [e.g. bis(2,6-di-t-butyl-4-methylphenyl) pentaerythritol diphosphite], and 0.05-10 pts.wt. base (e.g. sodium ethoxide), the resin (a) comprising 90-10wt.% poly(phenylene ether) and 10-90wt.% carboxylated poly(phenylene sulfide) resin obtained by reacting poly(phenylene sulfide) with a compound having at least one COOH group and at least one SH or disulfide group in the molecule (e.g. thiomalic acid).

53. 发明专利

JPH0733976A THERMOPLASTIC RESIN COMPOSITION 失效
公开(公告)号：JPH0733976A
公开(公告)日：1995-02-03
申请号：JP17827893
申请日：1993-07-19
申请人： MITSUBISHI CHEM CORP
发明人： OMURA HARUO , TANAKA TOMOHIKO
IPC分类号： C08L71/12 , C08L81/02
摘要： PURPOSE:To obtain the title composition which gives a molding excellent in mechanical strength, high-temp. rigidity, solvent resistance, and appearance by blending a specific poly(phenylene ether) and a specific poly(phenylene sulfide) in a given proportion. CONSTITUTION:The composition comprises 10-90wt.% functional poly(phenylene ether) having a hydroxyalkyl group as a substituent and obtained by reacting 100 pts.wt. poly(phenylene ether) represented by formula I [wherein Q is a halogen, a primary or secondary alkyl, an aryl, an aminoalkyl, a halohydrocarbon, or a (halo)hydrocarbonoxy; Q is H, a halogen, a primary or secondary alkyl, or a halohydrocarbon(oxy); and m is 20-450] with 0.1-10 pts.wt. poly(propylene glycol) represented by formula II wherein n is 3-100 and 90-10wt.% carboxylated poly(phenylene sulfide) obtained by modifying poly(phenylene sulfide) with a modifier selected from compounds each having both a COOH group and an SH or disulfide group in the molecule.

54. 发明专利

JP2001118224A TRAY FOR CONVEYING MAGNETIC HEAD FOR MAGNETIC DISK 失效
公开(公告)号：JP2001118224A
公开(公告)日：2001-04-27
申请号：JP2000067486
申请日：2000-03-10
申请人： ALPS ELECTRIC CO LTD , MITSUBISHI CHEM CORP , YUKA DENSHI KK
发明人： TANAKA SHIGERU , ASANO ETSUJI , TANAKA TOMOHIKO , SAGISAKA KOICHI
IPC分类号： C08J5/00 , C08K3/00 , C08K7/06 , C08L23/12 , C08L67/02 , C08L69/00 , C08L101/00 , G11B5/39 , G11B5/40
摘要： PROBLEM TO BE SOLVED: To provide a tray for conveying a magnetic head for a magnetic disk such as a tray for conveying a magnetic head, wherein electric damage by electrostatic discharge, conduction of an excess contact current or the like and physicochemical damage by falling of particles, ion contamination or the like are reduced. SOLUTION: The tray for conveying a magnetic head for a magnetic disk is formed by molding a conductive thermoplastic resin composition. The surface resistivity of the tray is 103-1012 Ω and when the tray having a surface area of 100-1,000 cm2 is immersed in pure water of 500 ml and impressed with the ultrasonic wave having a wavelength of 40 kHz for 60 s, the number of the particles which fall from the surface and have particle sizes of >=1 μm respectively is

55. 发明专利

JP2001118222A TRAY FOR CONVEYING MAGNETIC HEAD FOR MAGNETIC DISK 失效
公开(公告)号：JP2001118222A
公开(公告)日：2001-04-27
申请号：JP2000067484
申请日：2000-03-10
申请人： ALPS ELECTRIC CO LTD , MITSUBISHI CHEM CORP , YUKA DENSHI KK
发明人： TANAKA SHIGERU , ASANO ETSUJI , TANAKA TOMOHIKO , SAGISAKA KOICHI
IPC分类号： B65D85/86 , B65G1/00 , C08J5/00 , C08K3/04 , C08K7/06 , C08L69/00 , G11B5/39 , G11B5/40
摘要： PROBLEM TO BE SOLVED: To provide a tray for conveying a magnetic head for magnetic disk, which hardly damages the magnetic head by corrosion. SOLUTION: This tray for conveying the magnetic head for magnetic disk is formed by molding a polycarbonate resin composition containing 0.25-50 wt.% conductive filler and has

56. 发明专利

JP2000192432A COLLISION CUSHIONING BODY FOR VEHICLE 失效
公开(公告)号：JP2000192432A
公开(公告)日：2000-07-11
申请号：JP36938198
申请日：1998-12-25
申请人： MITSUBISHI CHEM CORP
发明人： TANAKA TOMOHIKO , NAKAMARU MASAFUMI , URASHU IBRAHIM
IPC分类号： E01F13/00 , F16F7/12
摘要： PROBLEM TO BE SOLVED: To obtain an excellent cushioning effect, and to simplify installation and attain temporary reuse by forming a collision cushioning body of a shell body composed of a thermoplastic synthetic resin formed in a hollow body having a large diameter and a plurality of expansion pipes housed in the shell body and made of the thermoplastic synthetic resin. SOLUTION: A plurality of expansion pipes 3 made of a thermoplastic synthetic resin are housed into a shell body 2 and used as a cushioning material, recoverability to deformation is improved, and the cushioning body has properties being difficult to be broken even by deformation. Since the cushioning body abounds in lightweight properties at that time, the cushioning body can be reinstalled even when the shell body 2 is to some extent broken. Consequently, the shell body 2 is also composed of the expansion pipe molded by the same method as the expansion pipes 3 and made of the thermoplastic synthetic resin on strength. A blow molded form comprising a resin such as polyethylene, polypropylene or the like, an extrusion molded form or the like is employed normally on molding. Accordingly, reinstallation is carried out, and the same effect as an effect before a collision cannot be displayed, but temporary use is enabled and the safety of a road can be maintained continuously.

57. 发明专利

JP2000168560A CROSSING GATE BAR 失效
公开(公告)号：JP2000168560A
公开(公告)日：2000-06-20
申请号：JP34376598
申请日：1998-12-03
申请人： MITSUBISHI CHEM CORP
发明人： TANAKA TOMOHIKO , NAKAMARU MASAFUMI , URASHU IBRAHIM
IPC分类号： B29C55/22 , B29K23/00 , B29L23/00 , B61L29/04
摘要： PROBLEM TO BE SOLVED: To bent a crossing gate bar and let an automobile go past when the automobile contacts the rod and subsequently recover the rod at an almost fixed location, by constituting the crossing gate bar by a hollow state drawing molding made of a polypropylene resin. SOLUTION: In a crossing gate, an interrupting rod 1 is mounted on a rotatable holding part 5 of a crossing gate main body 3 and a weight 4 is provided on an opposite side. This crossing gate bar 1 is made of drawing molding of a polypropylene resin. By making this drawing molding of the polypropylene resin into an hollow state, the molding shows specific durability for bending. Namely, when an automobile contacts the gate bar 1 for avoiding a danger in a state that the gate bar 1 of the crossing gate is lowered, the gate bar 1 is bent without being destroyed if the automobile is not unreasonably speeded up and the automobile is capable of pushing away the gate bar 1 and passing the bar 1. The gate bar 1 is bent from the vicinity of a root part 2 to be a connecting part with a holding part 5 (normally, is made of metal with rigidity) of the crossing gate.

58. 发明专利

JP2000141479A STRETCHED POLYETHYLENE PIPE EXCELLENT IN ENVIRONMENTAL STRESS CRACKING RESISTANCE 失效
公开(公告)号：JP2000141479A
公开(公告)日：2000-05-23
申请号：JP31382598
申请日：1998-11-05
申请人： MITSUBISHI CHEM CORP
发明人： TANAKA TOMOHIKO , NAKAMARU MASAFUMI , URASHU IBRAHIM
IPC分类号： B29C47/00 , B29C55/22 , B29K23/00 , B29L23/00 , F16L9/12
摘要： PROBLEM TO BE SOLVED: To enhance environmental stress cracking resistance by using a precursor containing polyethylene as a raw material. SOLUTION: A stretched polyethylene pipe is produced by using a Ziegler- Natta catalyst consisting of a solid catalyst component containing Mg, Ti and halogen as essential components and an organoaluminum compd. and satisfies respective conditions of (A) a ratio (Mw/Mn) of a wt. average mol.wt. (Mw) and a number average mol.wt. (Mn) of 8 or more, (B) a melt flow rate(MFR) of 0.01-1 g/10 min, (C) a density (ρ) of 0.940 g/cm3 or more and (D) ρ

59. 发明专利

JPH07157611A THERMOPLASTIC RESIN COMPOSITION 失效
公开(公告)号：JPH07157611A
公开(公告)日：1995-06-20
申请号：JP30920793
申请日：1993-12-09
申请人： MITSUBISHI CHEM CORP
发明人： NAKANO HIROSHI , TANAKA TOMOHIKO , OMURA HARUO , GOTO SHIRO
IPC分类号： C08L23/26 , C08L81/02
摘要： PURPOSE:To obtain the subject composition which gives a molding excellent in impact strength and tensile break strength. CONSTITUTION:This resin composition contains 90-10wt.% polyphenylene sulfide (A) containing a functional group selected from carboxyl, acid anhydride, alkoxysilyl, hydroxyl and amino groups and 10-90wt.% functional crystalline olefin resin (B) produced by introducing a functional group capable of reacting with the functional group of component A into a crystalline olefin resin having a melting point of 200 deg.C or higher and obtained by copolymerizing 70-99.99wt.% 5-12C a-olefin with 0.01-30wt.% 4-20C diene compound.

60. 发明专利

JPH0733975A THERMOPLASTIC RESIN COMPOSITION 失效
公开(公告)号：JPH0733975A
公开(公告)日：1995-02-03
申请号：JP17827793
申请日：1993-07-19
申请人： MITSUBISHI CHEM CORP
发明人： OMURA HARUO , TANAKA TOMOHIKO
IPC分类号： C08L71/12 , C08L81/02
摘要： PURPOSE:To obtain the title composition which gives a molding excellent in mechanical strength, high-temp. rigidity, solvent resistance, and appearance by blending a specific poly(phenylene ether) and a specific poly(phenylene sulfide) in a given proportion. CONSTITUTION:The composition comprises 10-90wt.% functional poly(phenylene ether) obtained by reacting 100 pts.wt. poly(phenylene ether) represented by formula I [wherein Q is a halogen, a primary or secondary alkyl, an aryl, an aminoalkyl, a halohydrocarbon, or a (halo)hydrocarbonoxy; Q is H, a halogen, a primary or secondary alkyl, or a halohydrocarbon(oxy); and m is 20-450] with 0.1-10 pts.wt. modifier represented by formula II or III wherein R is a 1-10C aliphatic or alicyclic residue optionally containing a functional group, e.g. OH or SH) and 90-10wt.% carboxylated poly(phenylene sulfide) obtained by modifying poly(phenylene sulfide) with a modifier selected from compounds each having both a COOH group and an SH or disulfide group in the molecule.

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