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公开(公告)号：JPH05179116A
公开(公告)日：1993-07-20
申请号：JP36046291
申请日：1991-12-27
Applicant: KANEBO LTD
Inventor： TOMITA HITOSHI , HONMA TOSHIO , KISHIDA YASUO
IPC: C08G63/183 , C08G63/181 , C08L67/00 , C08L67/02 , C08L69/00
Abstract: PURPOSE:To provide a thermoplastic resin composition excellent in heat resistance, impact resistance and moldability. CONSTITUTION:The title composition comprises 5-95wt.% polycarbonate resin and 95-5wt.% thermoplastic copolyester resin having a relative viscosity of 1.8-3.2, the thermoplastic copolyester resin being a polymer obtained from terephthalic acid or an ester-forming derivative thereof and a hydrogenated dimer acid or an ester-forming derivative thereof as the acid component and 1,4-butanediol as the glycol component.
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公开(公告)号：JPH05171018A
公开(公告)日：1993-07-09
申请号：JP35755691
申请日：1991-12-25
Applicant: KANEBO LTD
Inventor： TOMITA HITOSHI , HONMA TOSHIO , KISHIDA YASUO
Abstract: PURPOSE:To prepare the title compsn. excellent in toughness. CONSTITUTION:The title compsn. is prepd. by compounding 10-70 pts.wt. rubber- reinforced resin prepd. from 30-80wt.% rubber component mainly comprising a conjugated diolefin and 20-70wt.% resin component contg. acrylonitrile, an arom. vinyl, and, if necessary, a methacrylic ester in an amt. not higher than that of the arom. vinyl, 30-90 pts.wt. thermoplastic copolyester resin having a relative viscosity of 1.8-3.2 and prepd. by reacting a glycol component consisting of 1.4-butanediol with an acid component consisting of terephthalic acid or its ester-forming deriv. and a hydrogenated dimer acid or its ester- forming deriv., and a graft copolymer consisting of an ethylene-glycidyl methacrylate copolymer and an acrylonitrile-styrene copolymer in an amt. of 3-40 pts.wt. based on 100 pts.wt. the sum of the foregoing two resins.
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公开(公告)号：JPH05169370A
公开(公告)日：1993-07-09
申请号：JP35465891
申请日：1991-12-18
Applicant: KANEBO LTD
Inventor： KISHIDA YASUO , NISHIKAWA TETSUO
Abstract: PURPOSE:To provide a projection material for wet abrasive blasting superb in abrasive capacity and excellent in stability in the case where it is turned to water slurry. CONSTITUTION:This is a projection material consisting of a 100wt. part of copolymer polyester (A) and an alumine powder (B) 20-250wt. part, where (A) is composed of a diol ingredient 90-99.7mol% of which is ethylene glycol or its ester forming derivative, 0.3-10mol% of which is polyalkylene grycol and a dicarboxylic acid ingredient which is a terephthalic acid or its ester forming derivative.
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公开(公告)号：JPH05117512A
公开(公告)日：1993-05-14
申请号：JP31354891
申请日：1991-10-31
Applicant: KANEBO LTD
Inventor： TOMITA HITOSHI , HONMA TOSHIO , KISHIDA YASUO
Abstract: PURPOSE:To provide a thermoplastic polybutylene terephthalate resin composition having excellent toughness and rigidity and suitable for various kinds of electric parts, automotive parts, etc. CONSTITUTION:The resin composition comprises (A) 5-95wt.% of polybutylene terephthalate resin having a relative viscosity of 1.7-3, and (B) 5-95wt.% of a thermoplastic copolyester resin containing terephthalic acid or its ester-forming derivative and a hydrogenated dimer acid or its ester-forming derivative as acid components and 1,4-butanediol as a glycol component and having a relative viscosity of 1.8-3.2.
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公开(公告)号：JPH0446442B2
公开(公告)日：1992-07-30
申请号：JP14172384
申请日：1984-07-09
Applicant: KANEBO LTD
Inventor： NISHIKAWA TETSUO , KISHIDA YASUO
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Patent Agency Ranking
公开(公告)号：JPH0433817B2
公开(公告)日：1992-06-04
申请号：JP16968184
申请日：1984-08-14
Applicant: KANEBO LTD
Inventor： IZAWA NOBUO , MURAFUJI YOSHINORI , KISHIDA YASUO , NISHIKAWA TETSUO
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公开(公告)号：JPH04150004A
公开(公告)日：1992-05-22
申请号：JP27482090
申请日：1990-10-12
Applicant: KANEBO LTD
Inventor： KISHIDA YASUO , TOMITA HITOSHI , NISHIKAWA TETSUO
Abstract: PURPOSE:To enhance the magnetic characteristic of a plastic magnet and to enhance the molten fluidity at a molding operation by a method wherein a prescribed magnetic powder is filled into a thermoplastic resin. CONSTITUTION:The surface of a Nd-Fe-B-based magnetic powder is coated with a metal by a dry plating method or an electroless plating method. Then, 90 to 95wt.% of the Nd-Fe-B-based magnetic powder coated with the metal is mixed with 5 to 10wt.% of a thermoplastic resin. In addition, in order to enhance physical properties and fluidity, the magnetic powder is surface-treated in advance with a coupling agent when it is mixed. When it is filled, a lubricant, a thermal stabilizer, a pigment or the like may be used. Thereby, it is possible to enhance the characteristic of a product such as a component or the like for a motor and a magnetic-field generation apparatus.
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公开(公告)号：JPH03294353A
公开(公告)日：1991-12-25
申请号：JP9707290
申请日：1990-04-11
Applicant: KANEBO LTD
Inventor： TOMITA HITOSHI , HONMA TOSHIO , KISHIDA YASUO
Abstract: PURPOSE:To obtain a resin composition suitable for electric or electronic parts, etc., having excellent resistance to hydrolysis and fluidities in heat-melting and molding by mixing a specific amount of bisphenol S diglycidyl ether in a polybutylene terephthalate resin. CONSTITUTION:(A) 100 pts.wt. polybutylene terephthalate resin is mixed with (B) 1-20 pts.wt. bisphenol S diglycidyl ether expressed by the formula derived from reaction of bisphenol S obtained by condensation reaction of, e.g. phenol and sulfuric acid and epichlorohydrin in the presence of sodium hydroxide and an additive such as fibrous reinforcing agent, filler, electroconductive filler or fire retardant is added, as necessary, then blended in melting to an uniform mixture to afford the aimed thermoplastic polyester resin composition.
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公开(公告)号：JPH03251369A
公开(公告)日：1991-11-08
申请号：JP4896190
申请日：1990-02-27
Applicant: KANEBO LTD
Inventor： KISHIDA YASUO , NISHIKAWA TETSUO
IPC: B24C11/00
Abstract: PURPOSE:To improve the antihydrolysis performance, reduce the reduction of strength, and improve polishing faculty by mixing 0.1 - 6 wt. parts epoxy compound and 10 - 200 wt. parts alumina having an average particle diameter of 10 mum or less into 100 wt. parts thermoplastic polyester resin. CONSTITUTION:0.1 - 6 wt. parts epoxy compound and 10 - 200 wt. parts alumina having an average particle diameter of 10 mum or less are mixed into 100 wt. parts thermoplastic polyester resin, and a desired projection member for humid blast is obtained. Accordingly, the projection member for humid blast possesses the superior hydrolysis faculty, and the reduction of strength due to the humid blast work is little, and further, since fine alumina is uniformly dispersed, the superior polishing faculty is obtained, and the outside appearance of the resin molded article can be favorably maintained, and the projection member suitable for fine humid blast work can be obtained.
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公开(公告)号：JPH03215563A
公开(公告)日：1991-09-20
申请号：JP1015590
申请日：1990-01-18
Applicant: KANEBO LTD
Inventor： KISHIDA YASUO , NISHIKAWA TETSUO , HARUTA KAZUO
IPC: C08K3/08 , C08K3/02 , C08K5/09 , C08K5/10 , C08L101/00
Abstract: PURPOSE:To obtain the title composition having a high specific gravity, excellent melt flow and good moldability by mixing a thermoplastic resin with a large amount of a tungsten powder and a small amount of a saturated aliphatic carboxylic acid compound. CONSTITUTION:A thermoplastic resin (e.g. polyamide, polyester or polyphenylene sulfide) is mixed with 90-98wt.% tungsten powder (desirably of a mean particle diameter of 50mum) and 0.01-0.5wt.% saturated aliphatic carboxylic acid compound of the formula (wherein m is 20-32; n is 1 or 2; and R is an alkali metal, an alkaline earth metal or an aliphatic hydrocarbon group) to obtain a thermoplastic resin composition. This composition has a very high specific gravity, excellent moldability and excellent properties, so that it is desirable as a molding material for electrical components and machine parts where high specific gravity and dimensional accuracy are required.
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