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81. 发明专利

JPH06218305A POWDER COATING DEVICE 失效
公开(公告)号：JPH06218305A
公开(公告)日：1994-08-09
申请号：JP2997093
申请日：1993-01-25
申请人： KURIMOTO LTD , KOOTEMU KK
发明人： KITAGAWA MASAYOSHI , OI SHOICHI , SHIBATA MASAICHI , KANOU KIMIYA
IPC分类号： B05B13/06 , B05C19/06
摘要： PURPOSE:To obtain a powder coating device which can apply variably to any capacity instantaneously by arranging an upper pipe, an injector on the upper end of this upper pipe, an inner pipe which is open against the jet aperture of a jet nozzle, a powder fluidization device at the bottom of a powder hopper and an activation air operation part. CONSTITUTION:If a powder fluidization device 6 is activated to fluidize powder paint P in a powder hopper 2, and an activation air is supplied to set a jet nozzle to work, powder around a jet aperture 51 is sucked by ejector action and is induced into an inner pipe 25. Thus the powder is carried from the tip to the upper pipe and reaches a powder nozzle 1 passing through a powder hose 3. A compressed air sent by pressure into the powder hopper 2 fluidizes the powder paint P, and part of the powder paint P is scattered into the powder hopper 2 passing through a clearance C from the lower end 24 of the upper pipe 22. But the remaining equivalent is induced into the inner pipe 25 from the periphery of the jet nozzle 5 together with the fluidized powder paint P, and proceeds to the upper pipe 22. Consequently, an air current energy is activated to induce a strong ejector action.

82. 发明专利

JPH06185681A MANUFACTURE OF CORRUGATED PIPE INCORPORATING SLEEVE 失效
公开(公告)号：JPH06185681A
公开(公告)日：1994-07-08
申请号：JP34020592
申请日：1992-12-21
申请人： MITSUBISHI PETROCHEMICAL CO , KURIMOTO LTD
发明人： NAGASE SADAO , BAN HISAYOSHI , ITO MASAHIDE , KITAGAWA MASAYOSHI , SHIOMI ICHIRO
IPC分类号： F16L11/11 , F16L33/00 , F16L33/28
摘要： PURPOSE:To provide a double wall pipe incorporating a sleeve which can increase the connecting strength of the sleeve to the double wall pipe, which can completely seal the connecting part of the sleeve to the double wall pipe, and which can facilitate the connection of the sleeve to the double wall pipe. CONSTITUTION:A high density polyethylene double wall pipe 1 in which a cylindrical outer wall formed alternately with annular crest and trough parts is fitted on a cylindrical inner wall with the trough parts being thermally welded to the latter, is fitted therein with a high density polyethylene sleeve 2 having an inner diameter substantially equal to the outer diameter of the double wall pipe 1, and molten high density polyethylene is filled in annular gaps defined between the trough parts 1a of the double wall pipe 1 and the sleeve 2 through a filling hole 2a formed in the sleeve 2 so as to fix the pipe 1 and sleeve 2.

83. 发明专利

JPH05220451A LINING METHOD OF METAL PIPE OR METAL VALVE WITH URETHANE ELASTOMER 失效
公开(公告)号：JPH05220451A
公开(公告)日：1993-08-31
申请号：JP2850892
申请日：1992-02-14
申请人： DAINIPPON INK & CHEMICALS , KURIMOTO LTD
发明人： TAMURA YUJI , YAMAMOTO FUMIO , KURODA SHIGEYOSHI , KITAGAWA MASAYOSHI , MATSUNAGA JUNJI , AOKI NOBUO , TAKADA NOBUHIDE
IPC分类号： B05D1/38 , B05D7/22 , B05D7/24 , F16L57/00 , F16L58/10
摘要： PURPOSE:To provide a lining method of a metal pipe or a metal valve with urethane elastomer wherein the metal pipe and the metal valve have high wear resistance, corrosion resistance, water proofness, and excellent initial adhesion property. CONSTITUTION:At first, as a primary primer, a primer containing polyvinyl butyral as a main component is applied to the inner face of a metal pipe or a metal valve and dried. Further as a secondary primer, a polyurethane based primer containing isocyanate group is applied and dried. Then, two liquid hardening-type polyurethane elastomer raw liquid is applied thereon by a pouring method or a spraying method and cured.

84. 发明专利

JPH03277889A CORROSION PROTECTIVE FILM TO BE APPLIED ON EXTERIOR OF BURIED IRON PIPE 失效
公开(公告)号：JPH03277889A
公开(公告)日：1991-12-09
申请号：JP8037690
申请日：1990-03-27
申请人： KURIMOTO LTD , SEKIRIYOU HOUSOU KK
发明人： KITAGAWA MASAYOSHI , TANIGUCHI NOBUO
IPC分类号： F16L9/14 , F16L9/02
摘要： PURPOSE:To obtain the superior tear resistance, shock resistance, and the antihumid transmissivity by forming an inner layer from the compound of polyolefine group resin such as ethylene-vinyl acetate and low density polyethylene and forming an outer layer from a laminated body made of polyamide resin, vinyl chloride resin, etc., besides polyolefine group resin. CONSTITUTION:As for the corrosion protective film which is formed by integrally composing at least two kinds of synthetic resin films having different chemical compositions and externally installed on an embedded iron pipe, the inner layer is made of polyolefine group resin, e.g. a compound selected from ethylene vinyl acetate, low density polyethylene, intermediate density polyethylene, linear low density polyethylene, high density polyethylene, and polypropylene. Further, the outer layer consists of the compound selected from a variety of polyolefine group resin, polyamide resin, and vinyl chloride resin. Accordingly, the covering is provided with the superior breakage strength, breakage depth, and humidity transmissivity.

85. 发明专利

JPS63264676A CEMENT PIPE COATED WITH SOLVENTLESS TWO-COMPONENT URETHANE COATING COMPOSITION 失效
公开(公告)号：JPS63264676A
公开(公告)日：1988-11-01
申请号：JP9803087
申请日：1987-04-21
申请人： KURIMOTO LTD , DAINIPPON INK & CHEMICALS , DAINIPPON TORYO KK
发明人： KITAGAWA MASAYOSHI , MATSUNAGA JUNJI , OGOSHI NOBORU , TAKAHASHI YOSUKE , YAMADA YOSHIO , NISHIJIMA TADAHIKO
IPC分类号： F16L58/10 , B32B13/12 , C08G18/42 , C08G18/48 , C09D175/06
摘要： PURPOSE:To obtain a coated cement pipe excellent in impact resistance, chemical resistance, salt water resistance and corrosion resistance, by coating a cement pipe with a solventless two-component urethane coating composition essentially consisting of a specified polyol and a polyisocyanate. CONSTITUTION:A cement pipe coated with a solventless two-component urethane coating composition essentially consisting of a polyol (A), number-average MW

86. 发明专利

JPS6395216A IRON PIPE COATED WITH SOLVENTLESS TWO-PACK TYPE URETHANE COATING MATERIAL COMPOSITION 失效
公开(公告)号：JPS6395216A
公开(公告)日：1988-04-26
申请号：JP24183586
申请日：1986-10-11
申请人： KURIMOTO LTD , DAINIPPON INK & CHEMICALS , DAINIPPON TORYO KK
发明人： KITAGAWA MASAYOSHI , MATSUNAGA JUNJI , OGOSHI NOBORU , TAKAHASHI YOSUKE , YAMADA YOSHIO , NISHIJIMA TADAHIKO
IPC分类号： C08G18/48 , B32B13/06 , C08G18/42 , C09D175/08 , F16L58/10
摘要： PURPOSE:To obtain iron pipes, having excellent impact, chemical, salt water as well as corrosion resistance and useful for water supply, drainage pipes, etc., by coating with a solventless two-pack type urethane coating material composition prepared by blending a specific polyol with a polyisocyanate in a specific proportion. CONSTITUTION:Iron pipes are coated with a solventless two-pack type urethane coating material composition obtained by reacting 50-95wt% castor oil with 1-30wt% dihydric alcohol, e.g. ethylene glycol, etc., and 3-15wt% tri- or polyhydric alcohol, e.g. glycerol, etc., preferably at 200-250 deg.C, reacting 100pts. wt. resultant polyol with 3-30pts.wt. epsilon-caprolactone, preferably at 200 deg.C and blending the obtained polyol having

87. 发明专利

JPS605253A POWDER PAINTING APPARATUS APPLIED TO INNER SURFACE OF TUBULAR BODY 失效
公开(公告)号：JPS605253A
公开(公告)日：1985-01-11
申请号：JP11283083
申请日：1983-06-24
申请人： DAINIPPON TORYO KK , KURIMOTO LTD
发明人： KITAGAWA MASAYOSHI , OI SHIYOUICHI , MAEDA HIROMI , NAKAI SUSUMU
IPC分类号： B05C7/02 , B05B13/06
摘要： PURPOSE:To apply a paint film with a constant thickness to the inner surface of a tubular body, in painting the inner surface of the tubular body with a powder paint, by injecting the powder paint from a powder paint spray nozzle while moving a support pipe having said nozzle mounted to the leading end thereof through a heated pipe. CONSTITUTION:A tubular body B, of which the inner surface must be painted, is heated to 220-240 deg.C and moved to a rightward direction while rotated by a roller 21 and a support pipe having a transport pipe 5 of an epoxy resin type or polyester resin type powder paint A and a compressed air passage 8 provided therein is penetrated into the tubular body B to be painted. At the same time, compressed air passing through an air cooler 9 is supplied into the support pipe through a regulator 10. The air motor 3 provided to the leading end of the support pipe is rotated at 1,000-10,000rpm and the nozzle 4 provided to the leading end thereof is also simultaneously rotated while the powder paint is injected to the inner surface of the tubular body B from the nozzle 4 to form a paint film with a uniform thickness fused and adhered to the inner surface thereof.

88. 发明专利

JPS59223260A CEMENT MORTAR LINING PIPE AND CEMENTITIOUS PIPE 失效
公开(公告)号：JPS59223260A
公开(公告)日：1984-12-15
申请号：JP9693683
申请日：1983-06-02
申请人： KURIMOTO LTD , DAINIPPON INK & CHEMICALS
发明人： WATANABE SHIYUNSUKE , KAWASAKI TETSUO , KITAGAWA MASAYOSHI , NAKAMICHI NOBORU
IPC分类号： C04B24/42 , C04B41/48 , C04B41/64 , C04B13/24

89. 发明专利

JPS52148826A STEEL PIPES COATED WITH COPOLYMER SEPARATION 失效
公开(公告)号：JPS52148826A
公开(公告)日：1977-12-10
申请号：JP6524576
申请日：1976-06-03
申请人： DAINIPPON INK & CHEMICALS , KURIMOTO LTD
发明人： YOSHIMURA HIDEO , KITAGAWA MASAYOSHI , WATANABE SHIYUNSUKE , TAKAHASHI SHIYOUICHI
IPC分类号： C08F220/00 , C08F220/10 , C08F222/12 , C09D5/02 , C09D5/08 , C09D121/00 , C09D125/00 , C09D133/04 , F16L58/00 , F16L58/10

90. 发明专利

JP2002283045A SURFACE IMPROVING CASTING METHOD FOR THICK CAST PRODUCT 失效
公开(公告)号：JP2002283045A
公开(公告)日：2002-10-02
申请号：JP2001089286
申请日：2001-03-27
申请人： KURIMOTO LTD , TANABE SHIGENORI
发明人： MICHIURA YOSHISADA , NAKAMURA KIMIO , KITAGAWA MASAYOSHI , TANABE SHIGENORI
IPC分类号： B22D23/06 , B22C3/00 , B22C9/06 , B22D13/02 , B22D27/18 , B22F3/10 , B22F7/06 , C23C24/10 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To solve such problem that the restraint of penetration to a thick cast product is difficult and the formation of a sound coated layer is difficult though a surface improving method using a liquid-phase sintering is an effective means. SOLUTION: In the surface improving casting method in which mixed powder resulting from mixing metallic main powder A for giving a specified property, metallic sintering assistant agent powder B having lower melting point than that of the main powder and an organic base binder C, is stuck to a desired position in a cast product and the powders are mutually unified by the liquid- phase sintering generated among the above three materials to give the cast product the specified property, when the cast product is especially thick, at first, the mixed powder composed of the main powder A and the sintering assistant agent B is coated as a first layer on the surface of the mold and on the first layer used as a substrate, a second layer is overlaid to form a double layer structure. In the second layer, mixing ratio of the main powder A to the sintering assistant agent B is higher than in the first layer, and thus, the penetration of the main powder is restrained in spite of the thick cast product, and the minute improved layer having little pores can be formed.

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