Patents by Inventor Shigetoshi Sasano
Shigetoshi Sasano has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8735527Abstract: [Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.Type: GrantFiled: March 26, 2012Date of Patent: May 27, 2014Assignee: Mitsui Chemicals, Inc.Inventors: Akihiro Imai, Takeshi Osaki, Shigetoshi Sasano
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Patent number: 8377508Abstract: A solventless laminating adhesive comprising a polyisocyanate component and a polyol component, both of which are free from polyol components exhibiting crystalline properties at ordinary temperatures. The adhesive exhibits an initial viscosity of 500 to 1000 mPa s three minutes after mixing of the polyisocyanate component with the polyol component and a viscosity increase of 100 to 350% based on the initial viscosity 20 minutes after the mixing. In a coater which is provided with a pair of opposed rolls and in which the rolls rotates in the directions contrary to each other at the opposition site, the adhesive is applied to a film passing between the rolls.Type: GrantFiled: May 12, 2008Date of Patent: February 19, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Takashi Uemura, Shigetoshi Sasano, Yasuhiko Kataoka
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Publication number: 20120180952Abstract: [Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.Type: ApplicationFiled: March 26, 2012Publication date: July 19, 2012Inventors: Akihiro IMAI, Takeshi OSAKI, Shigetoshi SASANO
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Patent number: 8097079Abstract: A laminating adhesive includes a polyol; an acid-modified polyol obtained by reaction of a hydrophobic polyol containing a hydrocarbon moiety having 12 to 80 carbon atoms in its molecule in an amount of 30 to 95% by weight or a derivative thereof with an aromatic polycarboxylic acid anhydride and having a carboxyl group at a molecular terminal thereof; an organic polyisocyanate compound; and a silane coupling agent. A laminating adhesive film is excellent even after high-temperature sterilization treatment in adhesion performance between a metal foil or a barrier film and a plastic film serving as an inner layer, and also in adhesion performance between a metal foil or a barrier film and a plastic film serving as an outer layer.Type: GrantFiled: February 14, 2007Date of Patent: January 17, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Hideki Terada, Shigetoshi Sasano
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Publication number: 20100242798Abstract: A laminating adhesive includes a polyol; an acid-modified polyol obtained by reaction of a hydrophobic polyol containing a hydrocarbon moiety having 12 to 80 carbon atoms in its molecule in an amount of 30 to 95% by weight or a derivative thereof with an aromatic polycarboxylic acid anhydride and having a carboxyl group at a molecular terminal thereof; an organic polyisocyanate compound; and a silane coupling agent. A laminating adhesive film is excellent even after high-temperature sterilization treatment in adhesion performance between a metal foil or a barrier film and a plastic film serving as an inner layer, and also in adhesion performance between a metal foil or a barrier film and a plastic film serving as an outer layer.Type: ApplicationFiled: February 14, 2007Publication date: September 30, 2010Inventors: Hideki Terada, Shigetoshi Sasano
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Publication number: 20100249360Abstract: [Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.Type: ApplicationFiled: November 27, 2008Publication date: September 30, 2010Inventors: Akihiro Imai, Takeshi Osaki, Shigetoshi Sasano
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Publication number: 20100119821Abstract: A solventless laminating adhesive comprising a polyisocyanate component and a polyol component, both of which are free from polyol components exhibiting crystalline properties at ordinary temperatures. The adhesive exhibits an initial viscosity of 500 to 1000 mPa s three minutes after mixing of the polyisocyanate component with the polyol component and a viscosity increase of 100 to 350% based on the initial viscosity 20 minutes after the mixing. In a coater which is provided with a pair of opposed rolls and in which the rolls rotates in the directions contrary to each other at the opposition site, the adhesive is applied to a film passing between the rolls.Type: ApplicationFiled: May 12, 2008Publication date: May 13, 2010Inventors: Takashi Uemura, Shigetoshi Sasano, Yasuhiko Kataoka
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Publication number: 20090036630Abstract: Polyurethane resin compositions include a urethane prepolymer with an active hydrogen group and a polyisocyanate, or a urethane prepolymer with an isocyanate group and an active hydrogen compound. The urethane prepolymers having an active hydrogen group or an isocyanate group are obtained by reacting an allophanate group-containing polyisocyanate with a side-chain hydrocarbon group of 5 or more carbon atoms and a bifunctional or polyfunctional active hydrogen compound. Particularly preferably, the allophanate group-containing polyisocyanate is obtained by reacting a C5 or higher carbon number compound having an alcoholic hydroxyl group and an organic diisocyanate, in the presence of an organic bismuth carboxylate and an organic phosphite triester. The polyurethane resin compositions are suited for use as adhesives for bonding low-polarity resin bases such as polyolefin films.Type: ApplicationFiled: December 26, 2006Publication date: February 5, 2009Inventors: Shigetoshi Sasano, Takeshi Oosaki, Mitsuhiro Nishimura, Hiroyuki Washizu
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Patent number: 7364796Abstract: Adhesive composition and a flexible packaging composite film that can produce a reduced amount of low-molecular-weight compounds eluted into contents of a composite film to prevent spoilage of inherent properties or performances of the contents, can produce improved oil resistance to prevent significant reduction in strength even when used for oily contents, and can develop favorable flexibility of the composite film to prevent reduction in peel strength. Polyester polyamide polyol and/or polyurethane polyester polyamide polyol including an amide bond produced by reaction between a dimer acid and polyamine is prepared as a polyol component and also concentration of a cyclic compound formed by the amide bond and/or an ester bond in extracted water which is extracted from a composite film adhesively bonded by the adhesive composition by water of 0.5 mL/cm2 per unit area of the composite film is set to be 0.Type: GrantFiled: July 22, 2003Date of Patent: April 29, 2008Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Shigetoshi Sasano, Sachio Igarashi
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Publication number: 20050272898Abstract: Adhesive composition and a flexible packaging composite film that can produce a reduced amount of low-molecular-weight compounds eluted into contents of a composite film to prevent spoilage of inherent properties or performances of the contents, can produce improved oil resistance to prevent significant reduction in strength even when used for oily contents, and can develop favorable flexibility of the composite film to prevent reduction in peel strength. Polyester polyamide polyol and/or polyurethane polyester polyamide polyol including an amide bond produced by reaction between a dimer acid and polyamine is prepared as a polyol component and also concentration of a cyclic compound formed by the amide bond and/or an ester bond in extracted water which is extracted from a composite film adhesively bonded by the adhesive composition by water of 0.5 mL/cm2 per unit area of the composite film is set to be 0.Type: ApplicationFiled: July 22, 2003Publication date: December 8, 2005Applicant: MITSUI TAKEDA CHEMICALS, INC.Inventors: Shigetoshi Sasano, Sachio Igarashi
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Patent number: 6908981Abstract: A laminate adhesive that can suppress elution of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. In the laminate adhesive, the polyester polyol contains naphthalenedicarboxylic acid and/or alkyl ester thereof as an acid component, and concentration of cyclic ester compounds in extracted water, which are extracted from a composite film bonded by the laminate adhesive by water of 0.5 mL/cm2 per unit area of the composite film, is 0.5 ppb or less in terms of dibutyl phthalate concentration measured by a gas chromatograph-flame ionization detector.Type: GrantFiled: January 28, 2002Date of Patent: June 21, 2005Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Shigetoshi Sasano, Sachio Igarashi
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Patent number: 6846894Abstract: To provide a laminate adhesive that can keep on having adequate adhesiveness and also can prevent the odor and taste of the inherent properties of the content packed by the packing product from being spoiled even after high temperature sterilization treatment, such as the hot-water spray sterilization treatment, the hot-water rotary sterilization treatment or the steam sterilization treatment, to provide a usage of the laminate adhesive, the laminate adhesive comprises a curing component containing polyisocyanate and a base component containing polyol, wherein a silane coupling agent is contained in at least the curing component. Preferably, the silane coupling agent is mixed with both of the curing component and the base component. Further preferably, epoxysilane is mixed with the curing component and also aminosilane and oxyacid of phosphorus or derivative thereof are mixed with the base component.Type: GrantFiled: July 22, 2002Date of Patent: January 25, 2005Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Hideki Terada, Shigetoshi Sasano, Sachio Igarashi
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Publication number: 20030096110Abstract: To provide a laminate adhesive that can keep on having adequate adhesiveness and also can prevent the odor and taste of the inherent properties of the content packed by the packing product from being spoiled even after high temperature sterilization treatment, such as the hot-water spray sterilization treatment, the hot-water rotary sterilization treatment or the steam sterilization treatment, to provide a usage of the laminate adhesive, the laminate adhesive comprises a curing component containing polyisocyanate and a base component containing polyol, wherein a silane coupling agent is contained in at least the curing component. Preferably, the silane coupling agent is mixed with both of the curing component and the base component. Further preferably, epoxysilane is mixed with the curing component and also aminosilane and oxyacid of phosphorus or derivative thereof are mixed with the base component.Type: ApplicationFiled: July 22, 2002Publication date: May 22, 2003Inventors: Hideki Terada, Shigetoshi Sasano, Sachio Igarashi
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Publication number: 20020143102Abstract: A laminate adhesive that can suppress elution of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. In the laminate adhesive, the polyester polyol contains naphthalenedicarboxylic acid and/or alkyl ester thereof as an acid component, and concentration of cyclic ester compounds in extracted water, which are extracted from a composite film bonded by the laminate adhesive by water of 0.5 mL/cm2 per unit area of the composite film, is 0.5 ppb or less in terms of dibutyl phthalate concentration measured by a gas chromatograph-flame ionization detector.Type: ApplicationFiled: January 28, 2002Publication date: October 3, 2002Inventors: Shigetoshi Sasano, Sachio Igarashi
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Patent number: 6288201Abstract: A laminate adhesive that can suppress elusion of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. The laminate adhesive comprises a polyisocyanate component and a polyol component, wherein the polyol component includes polyester polyol and/or polyester polyurethane polyol which is produced by reaction of polyester polyol and polyisocyanate, and wherein concentration of cyclic compounds in extracted water which are extracted from a composite film bonded by the laminate adhesive by water of 0.5 mL/cm2 per unit area of the composite film is 0.5 ppb or less in terms of dibutyl phthalate concentration measured by a gas chromatograph-flame ionization detector.Type: GrantFiled: July 27, 2000Date of Patent: September 11, 2001Assignee: Takeda Cheical Industries, Ltd.Inventors: Shigetoshi Sasano, Sachio Igarashi
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Patent number: 5478897Abstract: A polyurethane adhesive composition prepared by incorporating phosphorus oxy acid or a derivative thereof, an amine compound and an epoxy resin into an organic polyisocyanate and an organic polyol.The polyurethane adhesive composition is employed in the manufacture of composite films by lamination of various plastic films, metal foils and so forth. The composition is excellent in adhesive properties, acid resistance and hot water resistance.Type: GrantFiled: April 18, 1994Date of Patent: December 26, 1995Assignee: Takeda Chemical Industries, Ltd.Inventors: Shigetoshi Sasano, Teruo Hori, Kyuya Yamazaki