Patents Assigned to Sekisui Kagaku Kogyo Kabushiki Kaisha
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Patent number: 6984445Abstract: A multi-layer sheet of the present invention comprises a thermoplastic resin foam sheet, a reinforcing sheet layered on integrated with at least one side of the thermoplastic resin foam sheet; the reinforcing sheet being formed by a non-woven fabric which comprises non-meltable fibers which are interwound with one another and which are bound together with a thermoplastic resin, the thermoplastic resin foam sheet having an aspect ratio Dz/Dxy of bubbles of 1.2 or more, and an expansion ratio of 5˜50 cc/g, and therefore the sheet is excellent in bending strength, compressive strength, thermo-forming property and dimensional stability as well as lightweight property, and so can ideally be used for an upholstery material for vehicles, a heat-insulation material, a buffer material and the like.Type: GrantFiled: February 28, 2000Date of Patent: January 10, 2006Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Kazuo Yamagata, Isao Higuchi, Takamasa Fukuoka, Michitaka Tsujimoto, Masashi Okabe, Yoshihiro Inui
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Patent number: 6790310Abstract: A sheet-form, curable pressure-sensitive adhesive is disclosed which includes a high molecular weight polymer (A) such as an acrylic polymer for constituting a pressure-sensitive adhesive component, a compound (B) containing an epoxy group, and a polymerization initiator (C) which is activated upon application of an activation energy such as a light to cause the compound (B) having an epoxy group to undergo a ring-opening polymerization.Type: GrantFiled: January 31, 2002Date of Patent: September 14, 2004Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Akira Nakasuga, Hiroji Fukui
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Patent number: 6613172Abstract: An object of the present invention is to provide a composite foam having a high compressive strength. A polyolefin resin is melted and kneaded with a modifying monomer to react them. A thermally decomposable chemical foaming agent is added to the obtained modified resin, and the mixture is kneaded. The obtained foamable resin composition is shaped into a sheet. A sheet-like facing material (3) having a strength sufficient to inhibit the foamable sheet from expanding in in-plane directions during thermal foaming is laminated on at least one side of the foamable sheet. The obtained foamable composite sheet is thermally foamed to produce a composite foam (1) having rugby-ball-shaped cells (2) oriented in the direction of the sheet thickness.Type: GrantFiled: February 10, 2000Date of Patent: September 2, 2003Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Michitaka Tsujimoto, Takamasa Fukuoka, Hiroyuki Kurio, Masashi Okabe
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Publication number: 20030026979Abstract: A sheet-form, curable pressure-sensitive adhesive is disclosed which includes a high molecular weight polymer (A) such as an acrylic polymer for constituting a pressure-sensitive adhesive component, a compound (B) containing an epoxy group, and a polymerization initiator (C) which is activated upon application of an activation energy such as a light to cause the compound (B) having an epoxy group to undergo a ring-opening polymerization.Type: ApplicationFiled: January 31, 2002Publication date: February 6, 2003Applicant: SEKISUI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Akira Nakasuga, Hiroji Fukui
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Patent number: 6495367Abstract: A blood component deposition-preventing agent and a blood coagulation accelerator are provided, which are substantially indifferent to blood coagulation activity and serum chemistry parameters. Also provided is plastic blood test ware and a blood test matrix which do not confound measured values. A blood component deposition-preventing agent comprising a random copolymer of a monomer component (a) giving a water-soluble homopolymer and a monomer component (b) giving a water-insoluble homopolymer, a blood coagulation accelerator comprising a substantially blood-insoluble antimicrobial composition comprising a carrier and, as supported thereon, an antimicrobial metal, and a blood test ware or matrix carrying them on its inside wall or surface are provided.Type: GrantFiled: December 3, 1998Date of Patent: December 17, 2002Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Hironobu Isogawa, Hideo Anraku
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Patent number: 6468734Abstract: An object is to obtain a container for measurement of cell functions which is simplified in operation, less risky and capable of measuring the cell functions very accurately. A container for measurement of cell functions, for use in the determination of a physiologically active substance produced by blood cells, is constituted such that an amount of material capable of inducing production of the physiologically active substance, when extracted by collecting water of a volume equal to a liquid volume to be subjected to measurement, is controlled at a level insufficient to induce production of the physiologically active substance from the blood cells.Type: GrantFiled: January 4, 2001Date of Patent: October 22, 2002Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Koji Kobayashi, Yuji Setoguchi, Kiyoshi Kuriyama
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Patent number: 6458548Abstract: A container for measurement of cell functions, for use in the determination of a physiologically active substance produced by blood cells, is constituted such that an amount of material capable of inducing production of the physiologically active substance, when extracted by collecting water of a volume equal to a liquid volume to be subjected to measurement, is controlled at a level insufficient to induce production of the physiologically active substance from the blood cells. A container for measurement of cell functions in which a material capable of inducing production of a physiologically active substance in blood when contacted with the blood is accommodated in such a condition as being contactable with blood, and in which an amount of the material capable of inducing production of the physiologically active substance in the container before use is limited to a level insufficient to influence a measured value of the physiologically active substance.Type: GrantFiled: April 1, 1998Date of Patent: October 1, 2002Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Koji Kobayashi, Yuji Setoguchi, Kiyoshi Kuriyama
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Patent number: 6419778Abstract: A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.Type: GrantFiled: May 26, 1999Date of Patent: July 16, 2002Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Akitaka Miyake, Tomoko Uematsu, Toshimitsu Tsuji
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Patent number: 6376070Abstract: A sheet-form, curable pressure-sensitive adhesive is disclosed which includes a high molecular weight polymer (A) such as an acrylic polymer for constituting a pressure-sensitive adhesive component, a compound (B) containing an epoxy group, and a polymerization initiator (C) which is activated upon application of an activation energy such as a light to cause the compound (B) having an epoxy group to undergo a ring-opening polymerization.Type: GrantFiled: May 21, 1997Date of Patent: April 23, 2002Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Akira Nakasuga, Hiroji Fukui
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Patent number: 6300135Abstract: This invention has for its object to provide a blood component deposition-preventing agent and a blood coagulation accelerator, which are substantially indifferent to blood coagulation activity and serum chemistry parameters and a plastic blood test ware and a blood test matrix which do not confound measured values. The invention relates to a blood component deposition-preventing agent comprising a random copolymer of a monomer component (a) giving a water-soluble homopolymer and a monomer component (b) giving a water-insoluble homopolymer, a blood coagulation accelerator comprising a substantially blood-insoluble antimicrobial composition comprising a carrier and, as supported thereon, an antimicrobial metal, and a blood test ware or matrix carrying them on its inside wall or surface.Type: GrantFiled: December 3, 1998Date of Patent: October 9, 2001Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Hironobu Isogawa, Hideo Anraku
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Publication number: 20010014443Abstract: An object is to obtain a container for measurement of cell functions which is simplified in operation, less risky and capable of measuring the cell functions very accurately.Type: ApplicationFiled: January 4, 2001Publication date: August 16, 2001Applicant: SEKISUI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Koji Kobayashi, Yuji Setoguchi, Kiyoshi Kuriyama
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Patent number: 6248779Abstract: The first invention provides an external preparation for treating dermatoses comprising vitamin E and squalane, which has an efficacy at least equivalent to that of external preparations containing adrenocortical hormones as the active ingredient. The second invention provides an external preparation for treating dermatoses comprising an adrenocortical hormone, vitamin E and squalane, which is reduced in adrenocortical hormone content as compared with conventional preparations, is also reduced in side effects, and has high clinical efficacy. The third invention provides an external preparation for treating dermatoses comprising a nonsteroidal antiinflammatory agent, vitamin E and squalane and/or squalene, which is reduced in side effects and is highly efficacious. The fourth invention provides an external preparation for treating dermatoses comprising an antihistaminic agent, vitamin E and squalane and/or squalene, which is reduced in side effects and is highly efficacious like the above preparation.Type: GrantFiled: April 1, 1997Date of Patent: June 19, 2001Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Tatsuo Shimizu, Tomoko Horiguchi, Kiyoshi Kuriyama, Mitsuo Watabe
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Patent number: 6234226Abstract: lining apparatus deals with tubular culverts having various cross sections which are not limited to a general cross section of a circular shape but may be constituted by an oval shape, a rectangular shape or another polygonal shape and the like. The lining apparatus inserts a tubular body (lining pipe) formed by spirally winding a strip member having a long sheet-like body at an inner face of an existing tubular culvert such as a sewage pipe, a water supply pipe, a gas pipe or the like. The lining apparatus is constituted mainly by a forming frame in a closed loop shape made flexible by a link mechanism having a series of links. A joint mechanism unit is attached to the forming frame and a peripheral length adjusting mechanism adjusts the peripheral length. An interval maintaining mechanism fixes the peripheral length. Rotary guides are mounted to the forming frame and a rigid regulating frame is brought into contact with the rotary guides and is arranged on the inner side of the forming frame.Type: GrantFiled: December 22, 1998Date of Patent: May 22, 2001Assignees: Sekisui Kagaku Kogyo Kabushiki Kaisha, Adachi Construction Industry Co. Ltd.Inventors: Naoki Kitahashi, Yasushi Kitayama, Eiki Akimoto, Hamao Yamashiro
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Patent number: 6090479Abstract: A resin foamed product is formed of a resin, and closed cells dispersed in the resin. The resin with the closed cells therein has a shape-recoverable property at an ambient temperature, a closed cell rate higher than 30% and a compression permanent set lower than 10%. Thus, when contraction takes place in the resin with the closed cells, after a predetermined time has passed without providing an outer stimulation to the resin, a shape of the resin foamed product formed of the resin with the closed cells is automatically recovered at least in one direction without equally expanding in all directions.Type: GrantFiled: March 24, 1998Date of Patent: July 18, 2000Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Hitoshi Shirato, Eiji Okada, Takashi Oguchi, Hiroshi Abe, Masaru Koike, Michitaka Tsujimoto
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Patent number: 6073401Abstract: The present invention provides a building unit 12, wherein floor beams 22 which are structural framing members are connected to the lower end portions of columns 21 which are structural framing members, and ceiling panel 23 which is not a structural framing member is connected to the upper end portions of the columns 21.Type: GrantFiled: February 13, 1998Date of Patent: June 13, 2000Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Chika Iri, Katsunori Ohnishi
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Patent number: 6042765Abstract: A method of the invention can produce a fiber-reinforced thermoplastic resin foamed product having less unevenness in a thickness of a surface layer and excellent mechanical strength. In the method, a fiber-reinforced thermoplastic resin sheet is continuously shaped into a hollow member, and a foaming resin composition containing a thermoplastic resin and a foaming agent is supplied into an interior of the obtained hollow member. The foaming agent is foamed so that the hollow member is shaped into a desired form by the foaming pressure.Type: GrantFiled: December 9, 1996Date of Patent: March 28, 2000Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Hiroshi Sugahara, Koji Yamaguchi, Yoshitaka Nakatani, Koichi Hirao
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Patent number: 6021812Abstract: In a ball plug valve (10 ) which has a main opening (14 ) and an auxiliary opening (14 ) A serving as the inlet openings of a flow through hole (13 ) of a ball (12 ) and which has a sectorial opening (15 ) serving as an outlet opening thereof; it is set so that a tip (15 ) A of the sectorial opening (15 ) is in a first sealing region (17 ) A provided by an outlet sealing member near an outlet passage when the valve is fully closed, while the tip (15 ) A of the sectorial opening (15 ) passes across the outlet passage and enters a second sealing region (17 ) B provided by an outlet sealing member when the valve is fully opened.Type: GrantFiled: June 1, 1998Date of Patent: February 8, 2000Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha & Ichinose Co., Ltd.Inventors: Kunio Iwamoto, Tadashi Ogawa, Hitoshi Ishiyama, Hideki Wakahara
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Patent number: 5997675Abstract: A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.Type: GrantFiled: July 15, 1998Date of Patent: December 7, 1999Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Akitaka Miyake, Tomoko Uematsu, Toshimitsu Tsuji
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Patent number: 5939180Abstract: A foam molding is disclosed which is light, excellent in bending strength, and excellent in balance between compressive strength and compression permanent strain. The foam molding comprises thermoplastic resin high expanded foams whose overall outer surfaces are covered with thermoplastic resin low-expanded-foam thin layers. The foams are thermally fused with each other through the aforementioned low-expanded-foam thin layers.Type: GrantFiled: September 23, 1996Date of Patent: August 17, 1999Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Tomoyuki Kobayashi, Kenji Miyazaki, Michiaki Sasayama
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Patent number: 5888824Abstract: This invention has for its object to provide a blood component deposition-preventing agent and a blood coagulation accelerator, which are substantially indifferent to blood coagulation activity and serum chemistry parameters and a plastic blood test ware and a blood test matrix which do not confound measured values. The invention relates to a blood component deposition-preventing agent comprising a random copolymer of a monomer component (a) giving a water-soluble homopolymer and a monomer component (b) giving a water-insoluble homopolymer, a blood coagulation accelerator comprising a substantially blood-insoluble antimicrobial composition comprising a carrier and, as supported thereon, an antimicrobial metal, and a blood test ware or matrix carrying them on its inside wall or surface.Type: GrantFiled: July 5, 1996Date of Patent: March 30, 1999Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Hironobu Isogawa, Hideo Anraku