Patents Assigned to Daiwabo Co., Ltd.
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Publication number: 20090318050Abstract: The present invention is directed to a crimping conjugate fiber, comprising a first component and a second component, wherein the first component comprises a polybutene-1; the second component comprises a polymer having a melting point higher than that of the polybutene-1 by at least 20° C., or a polymer having a melting initiation temperature (extrapolated melting initiation temperature measured using differential scanning calorimetry (DSC) as defined in JIS-K-7121) of at least 120° C.; in a cross section of the fiber, the first component occupies at least 20% of the surface of the conjugate fiber, and the centroid position of the second component is shifted from the centroid position of the conjugate fiber; and the conjugate fiber is an actualized crimping conjugate fiber in which three-dimensional crimps have been developed or a latently crimpable conjugate fiber in which three-dimensional crimps are developed by heating.Type: ApplicationFiled: March 30, 2007Publication date: December 24, 2009Applicants: Daiwabo Co., Ltd., Daiwabo Polytec Co., LtdInventor: Hiroshi Okaya
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Publication number: 20090291934Abstract: An allergen decomposer which contains as an active ingredient a derivative of metal phthalocyanine represented by the following formula (I) (M is a metal selected among iron, cobalt, manganese, titanium, vanadium, nickel, copper, zinc, molybdenum, tungsten, and osmium).Type: ApplicationFiled: May 26, 2009Publication date: November 26, 2009Applicants: Shinshu TLO Co., Ltd., Daiwabo Co., Ltd.Inventors: Hirofusa Shirai, Seigo Higaki, Hisanaga Tsuiki, Yasuji Sugihara
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Publication number: 20090142595Abstract: A heat extensible fiber comprises a conjugate fiber including a first resin component having an orientation index of 30% to 70% and a second resin component having a lower melting point or softening point than the melting point of the first resin component and an orientation index of 40% or more, the second resin component being present on at least part of the surface of the conjugate fiber in a lengthwise continuous configuration. The conjugate fiber is a heat-treated or crimped fiber and being configured to thermally extend when heated at a temperature lower than the melting point of the first resin component. The heat extensible fiber has higher heat self-extensibility than conventional extensible fibers.Type: ApplicationFiled: December 1, 2006Publication date: June 4, 2009Applicants: Daiwabo Co., Ltd., Daiwabo Polytec Co., Ltd.Inventors: Manabu Matsui, Yoshiji Usui, Shigeki Kawakami
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Publication number: 20090030131Abstract: A rayon fiber that does not use a halide-based flame retardant, a phosphorous flame retardant or an organic solvent, has excellent flameproofness and launderability and is biodegradable when buried in the soil at the time of disposal, and a method for manufacturing the same are provided. The flameproof rayon fiber according to the present invention contains components of silicon and magnesium, and a compound containing the components of silicon and magnesium is amorphous.Type: ApplicationFiled: August 22, 2006Publication date: January 29, 2009Applicants: Daiwabo Co., Ltd., Daiwabo Rayon Co., Ltd.Inventors: Shigeo Fushitani, Masaru Nakano
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Publication number: 20080108593Abstract: An allergen decomposer which contains as an active ingredient a derivative of metal phthalocyanine represented by the following formula (I) (M is a metal selected among iron, cobalt, manganese, titanium, vanadium, nickel, copper, zinc, molybdenum, tungsten, and osmium).Type: ApplicationFiled: March 29, 2004Publication date: May 8, 2008Applicants: Shinshu TLO Co., Ltd, Daiwabo Co., Ltd.Inventors: Hirofusa Shirai, Seigo Higaki, Hisanaga Tsuiki, Yasuji Sugihara
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Publication number: 20080069845Abstract: A skin application sheet for being impregnated with a cosmetic preparation is provided which is suitable for a face mask and so on, and causes less irritation to skin, and has good application properties. A splittable conjugate fiber web containing at least 50% by mass of splittable conjugate fibers is placed on one surface or both surfaces of a hydrophilic nonwoven containing at least 50% by mass of hydrophilic fibers and hydroentanglement treatment is conducted to split the splittable conjugate fibers into ultrafine fibers with a fineness of 0.5 dtex and to form a ultrafine fiber layer containing at least 10% by mass of the ultrafine fibers and to integrate the hydrophilic nonwoven and the ultrafine fiber layer so that a sheet is obtained. This sheet is impregnated with the cosmetic preparation and used in such a manner that the ultrafine fiber layer is a skin contact surface.Type: ApplicationFiled: August 10, 2005Publication date: March 20, 2008Applicants: DAIWABO CO., LTD., THE PROCTOR & GAMBLE COMPANY, DAIWABO POLYTEC CO., LTD.Inventors: Hiroko Makihara, Kazuyuki Ohnishi
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Publication number: 20070128434Abstract: The filler-affixed fiber of the present invention is a filler-affixed fiber that includes a fiber (2), a binder resin (1) on the fiber surface, and filler (3) affixed to the binder resin (1). The binder resin (1) is a heat-and-humidity gelling resin that is caused to gel by heating in the presence of moisture, and the filler (3) is affixed by a gel material produced by causing the heat-and-humidity gelling resin to gel. Thus, the fiber (2) preserves the form of the fiber, and exhibits the working function as a binder that causes the filler (3) to be affixed by causing the heat-and-humidity gelling resin to gel.Type: ApplicationFiled: August 2, 2004Publication date: June 7, 2007Applicant: DAIWABO CO.,LTD.Inventors: Hisatoshi Motoda, Kouki Shigeta
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Publication number: 20060154140Abstract: An organic electrolyte battery separator is composed of a nonwoven comprising a heat-and-humidity gelling resin capable of gelling by heating in the presence of moisture and another fiber. The other fiber is fixed with a gel material obtained by causing the heat-and-humidity gelling resin to gel under heat and humidity. The nonwoven has a mean flow pore diameter of 0.3 ?m to 5 ?m and a bubble point pore diameter of 3 ?m to 20 ?m as measured in accordance with ASTM F 316 86. Thereby, the other fiber constituting the nonwoven can be fixed with the heat-and-humidity gelling resin, thereby making it possible to obtain a desired mean flow pore diameter and bubble point pore diameter. As a result, an organic electrolyte battery having a high level of safety, less occurrence of a short circuit, high battery characteristics is provided.Type: ApplicationFiled: October 23, 2003Publication date: July 13, 2006Applicant: DAIWABO CO., LTD.Inventors: Hiroyuki Yamamoto, Hitoshi Tateno, Toshio Kamisasa
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Publication number: 20060147804Abstract: A separator material of the present invention is a sulfonated nonwoven that comprises a polyolefin ultra-fine short fiber having a fineness of less than 0.5 dtex and other polyolefin short fiber(s). The other polyolefin short fibers include a polyolefin thermal bonding short fiber. At least a portion of the polyolefin thermal bonding short fiber is flattened to bond the component fibers together. The nonwoven has a specific surface area in a range of 0.6 m2/g to 1.5 m2/g and satisfies the following ranges. (1) A ratio (S/C)E of the number of sulfur atoms (S) to the number of carbon atoms (C) in the nonwoven, as measured by Electron Spectroscopy for Chemical Analysis (ESCA), is in a range of 5×10?3 to 60×10?3. (2) A ratio (S/C)B of the number of sulfur atoms (S) to the number of carbon atoms (C) in the nonwoven, as measured by a flask combustion technique, is in a range of 2.5×10?3 to 7×10?3. (3) A ratio (S/C)E/(S/C)B (depth of sulfonation) of (S/C)E to (S/C)B is in a range of 1.5 to 12.Type: ApplicationFiled: January 23, 2004Publication date: July 6, 2006Applicant: Daiwabo Co., Ltd.Inventors: Hiroyuki Yamamoto, Tatsunori Kida, Toshio Kamisasa
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Patent number: 6566287Abstract: A non-woven fabric having such a structure that fine fibers having a small fineness are entangled with one another and a sheet obtained by impregnating the non-woven fabric with an elastic polymer satisfy the following requirements: the fine fibers should be obtained by splitting a strippable and splittable composite short fiber comprising at least two components; the fine fibers should have a monofilament size of 0.01 to 0.5 denier; the fine fibers should form a fine non-woven fabric structure that they are entangled with one another at random; the apparent density should be 0.18 to 0.Type: GrantFiled: May 1, 2000Date of Patent: May 20, 2003Assignees: Teijin Limited, Daiwabo Co., Ltd.Inventors: Masahisa Mimura, Hideki Nitta, Nobuo Ohkawa, Kimio Nakamura, Yoshiji Usui, Hiroji Wakisaka, Akihiro Imoto
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Patent number: 6291105Abstract: A battery separator and a method for manufacturing the same and a battery using the same. The battery separator is excellent in alkaline retaining property, initial alkaline absorption and durable alkaline absorption while maintaining tensile strength and air permeability, by forming functional groups or bonds of —CHO or —C+H—O−, —CO—, and —COO— or —COO−on the surface of the non-woven fabric. The battery shows great wettability with an alkaline electrolyte when incorporated into an battery, and thus, improves the battery life.Type: GrantFiled: August 14, 1998Date of Patent: September 18, 2001Assignee: Daiwabo Co., Ltd.Inventors: Hiroyuki Yamamoto, Toyohiko Sano, Shuuji Hori, Tomofumi Tanaka, Tatsunori Kida
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Patent number: 4770925Abstract: There is provided a thermally bonded nonwoven fabric with a unit weight of 10 to 40 g/m.sup.2, comprising 20 to 100% by weight of a composite fiber with a fineness of 0.5 to 8 denier and 80 to 0% by weight of other fibers as the constituent fibers, the composite fiber comprising a first component which is an ethylene-.alpha.-olefin copolymer composition comprising an ethylen-.alpha.-olefin copolymer containing 0.5 to 4% by weight of an .alpha.-olefin having 4 to 12 carbon atoms blended with 0.01 to 0.3% by weight of a phenol type antioxidant and 0.01 to 0.3% by weight of a sulfur type antioxidant, having a Q-value (weight average molecular weight/number average molecular weight) of 4 or less, a density of 0.930 to 0.950 g/cm.sup.3, a melt flow rate of 5 to 50 g/10 min. and an oxidation induction time at 210.degree. C. of 10 min. or longer, and a second component which is a thermoplastic resin having a melting point higher by at least 20.degree. C.Type: GrantFiled: January 15, 1988Date of Patent: September 13, 1988Assignees: Mitsubishi Petrochemical Co., Ltd., Daiwabo Co., Ltd.Inventors: Akihiko Uchikawa, Koji Nishida, Yasuji Hosono, Kazuhisa Tachi, Takesi Okamoto, Yosuke Takai, Hideo Nakashima