Patents by Inventor Chikako Kouda
Chikako Kouda 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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Publication number: 20260042931Abstract: In a coating agent obtained by water-dispersing a polyurethane resin, the polyurethane resin is a secondary reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer is a primary reaction product of a polyisocyanate component containing a xylylene diisocyanate and/or a hydrogenated xylylene diisocyanate, and an active hydrogen group-containing component containing a short chain diol having 2 to 6 carbon atoms and an active hydrogen compound having a hydrophilic group; and the viscosity at 25° C. of the coating agent is 50 mPa·s or more.Type: ApplicationFiled: October 21, 2025Publication date: February 12, 2026Inventors: Kazuyuki FUKUDA, Tomoharu MIYANAGA, Chikako KOUDA, Takashi UCHIDA, Masaya KUSUMOTO
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Patent number: 12540245Abstract: A water repellent composition includes a polyurethane resin compound, a non-fluorine water repellent compound, a surfactant, and a liquid medium. The polyurethane resin compound includes at least one kind selected from the group consisting of a first polyurethane resin compound, a second polyurethane resin compound, and a third polyurethane resin compound.Type: GrantFiled: December 21, 2020Date of Patent: February 3, 2026Assignees: MITSUI CHEMICALS, INC., DAIKIN INDUSTRIES, LTD.Inventors: Chikako Kouda, Kazuyuki Fukuda, Keisuke Nakamura, Daisuke Noguchi, Masahiro Miyahara, Rumi Kawabe, Shinichi Minami
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Polyurethane resin composition, repellent, water repellent for fibers, and stain-proof coating agent
Patent number: 12351674Abstract: A polyurethane resin composition includes a reaction product of an aliphatic polyisocyanate derivative having an average number of isocyanate groups of 2 or more; a long-chain active hydrogen compound including a hydrocarbon group having 12 or more and 30 or less carbon atoms and an active hydrogen group in combination; a cationic active hydrogen compound including an active hydrogen group and a cationic group in combination; and an acid compound capable of a salt with the cationic group. The concentration of the hydrocarbon group is 30% or more and 85% or less.Type: GrantFiled: December 21, 2020Date of Patent: July 8, 2025Assignees: MITSUI CHEMICALS, INC., DAIKIN INDUSTRIES, LTD.Inventors: Chikako Kouda, Kazuyuki Fukuda, Daisuke Noguchi, Keisuke Nakamura -
Publication number: 20250215140Abstract: A polyurethane dispersion consists of a polyurethane resin dispersed in water. The polyurethane resin is a reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer is a reaction product of a polyisocyanate component and a polyol component containing a macropolyol and a hydrophilic group-containing active hydrogen compound. The macropolyol contains an aromatic ring-containing polyester polyol. The polyurethane resin has an acid value of 7.0 mg KOH/g or more and 14.0 mg KOH/g or less. The total of the urethane group concentration and the urea group concentration of the polyurethane resin is 20.0% by mass or less. The polyurethane resin has an aromatic ring concentration of 5.0% by mass or more and 15.0% by mass or less.Type: ApplicationFiled: March 14, 2023Publication date: July 3, 2025Inventors: Tatsuya YAMASHITA, Chikako KOUDA, Kazuyuki FUKUDA
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Publication number: 20250153469Abstract: A laminate 1 includes a substrate 2, an inorganic vapor deposition layer 3, an adhesive layer 5, and a resin film layer 6 in sequence. A barrier coat layer 4 is interposed between the substrate 2 and the inorganic vapor deposition layer 3 and/or between the inorganic vapor deposition layer 3 and the adhesive layer 5. The adhesive layer 5 has a thermal expansion coefficient of 100.0×10?5K?1 or less.Type: ApplicationFiled: February 21, 2023Publication date: May 15, 2025Inventors: Tomoki SUGIHARA, Kazuyuki FUKUDA, Toshihiko NAKAGAWA, Chikako KOUDA, Yoshiki SHIMOKAWATOKO
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Patent number: 12269930Abstract: In a polyurethane dispersion obtained by water-dispersing a polyurethane resin, the polyurethane resin is a reaction product obtained by reacting at least a polyisocyanate component with an active hydrogen group-containing component containing an active hydrogen compound having an anionic group, a ratio of the total moles of a urethane group and a urea group is 1.5 mol or more with respect to 1 kg of the polyurethane dispersion, and the carbonate ion concentration is 700 ppm or less with respect to the polyurethane dispersion.Type: GrantFiled: June 3, 2020Date of Patent: April 8, 2025Assignee: Mitsui Chemicals, Inc.Inventors: Chikako Kouda, Kazuyuki Fukuda, Takashi Uchida
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POLYURETHANE RESIN COMPOSITION, REPELLENT, WATER REPELLENT FOR FIBERS, AND STAIN-PROOF COATING AGENT
Publication number: 20230053165Abstract: A polyurethane resin composition includes a reaction product of an aliphatic polyisocyanate derivative having an average number of isocyanate groups of 2 or more; a long-chain active hydrogen compound including a hydrocarbon group having 12 or more and 30 or less carbon atoms and an active hydrogen group in combination; a cationic active hydrogen compound including an active hydrogen group and a cationic group in combination; and an acid compound capable of a salt with the cationic group. The concentration of the hydrocarbon group is 30% or more and 85% or less.Type: ApplicationFiled: December 21, 2020Publication date: February 16, 2023Inventors: Chikako KOUDA, Kazuyuki FUKUDA, Daisuke NOGUCHI, Keisuke NAKAMURA -
Publication number: 20230037578Abstract: A water repellent composition includes a polyurethane resin compound, a non-fluorine water repellent compound, a surfactant, and a liquid medium.Type: ApplicationFiled: December 21, 2020Publication date: February 9, 2023Inventors: Chikako KOUDA, Kazuyuki FUKUDA, Keisuke NAKAMURA, Daisuke NOGUCHI, Masahiro MIYAHARA, Rumi KAWABE, Shinichi MINAMI
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Publication number: 20220325059Abstract: In a polyurethane dispersion obtained by water-dispersing a polyurethane resin, the polyurethane resin is a reaction product obtained by reacting at least a polyisocyanate component with an active hydrogen group-containing component containing an active hydrogen compound having an anionic group, a ratio of the total moles of a urethane group and a urea group is 1.5 mol or more with respect to 1 kg of the polyurethane dispersion, and the carbonate ion concentration is 700 ppm or less with respect to the polyurethane dispersion.Type: ApplicationFiled: June 3, 2020Publication date: October 13, 2022Inventors: Chikako KOUDA, Kazuyuki FUKUDA, Takashi UCHIDA
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Publication number: 20220228024Abstract: In a coating agent obtained by water-dispersing a polyurethane resin, the polyurethane resin is a secondary reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer is a primary reaction product of a polyisocyanate component containing a xylylene diisocyanate and/or a hydrogenated xylylene diisocyanate, and an active hydrogen group-containing component containing a short chain diol having 2 to 6 carbon atoms and an active hydrogen compound having a hydrophilic group; and the viscosity at 25° C. of the coating agent is 50 mPa·s or more.Type: ApplicationFiled: June 5, 2020Publication date: July 21, 2022Inventors: Kazuyuki FUKUDA, Tomoharu MIYANAGA, Chikako KOUDA, Takashi UCHIDA, Masaya KUSUMOTO
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Patent number: 11179922Abstract: A barrier laminate film (100) of the present invention includes: a base material layer (101), a stress relaxation layer (102), an inorganic material layer (103), and a barrier resin layer (104) in this order. The barrier resin layer (104) includes an amide cross-linked compound of a polycarboxylic acid and a polyamine, and the stress relaxation layer (102) includes a polyurethane-based resin having an aromatic ring structure in a main chain.Type: GrantFiled: March 28, 2018Date of Patent: November 23, 2021Assignee: MITSUI CHEMICALS TOHCELLO, INC.Inventors: Chikako Kouda, Tatsuya Shibata, Kazuyuki Fukuda, Takashi Uchida, Kenji Odagawa, Shuji Tahara, Shingo Suzuki, Daisuke Matoba, Yasuaki Shinkawa, Eiichi Moriya, Akira Nomoto
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Publication number: 20210107264Abstract: A barrier laminate film (100) of the present invention includes: a base material layer (101), a stress relaxation layer (102), an inorganic material layer (103), and a barrier resin layer (104) in this order. The barrier resin layer (104) includes an amide cross-linked compound of a polycarboxylic acid and a polyamine, and the stress relaxation layer (102) includes a polyurethane-based resin having an aromatic ring structure in a main chain.Type: ApplicationFiled: March 28, 2018Publication date: April 15, 2021Applicant: MITSUI CHEMICALS TOHCELLO, INC.Inventors: Chikako KOUDA, Tatsuya SHIBATA, Kazuyuki FUKUDA, Takashi UCHIDA, Kenji ODAGAWA, Shuji TAHARA, Shingo SUZUKI, Daisuke MATOBA, Yasuaki SHINKAWA, Eiichi MORIYA, Akira NOMOTO
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Patent number: 10434751Abstract: In a laminate film 1 including a substrate 2, a polyurethane layer 3 formed on the substrate 2, and a metal vapor deposition layer 4 formed on the polyurethane layer 3, a coating liquid is applied on the substrate 2 and dried to produce the polyurethane layer 3. The coating liquid contains a water dispersible polyisocyanate and a polyurethane dispersion containing polyurethane resin produced by reaction of an isocyanate group-terminated prepolymer with a chain extender. The isocyanate group-terminated prepolymer is produced by reaction of a polyisocyanate component including xylylene diisocyanate and/or hydrogenated xylylene diisocyanate and a polyol component including diol having 2 to 6 carbon atoms and an active hydrogen group-containing compound containing a hydrophilic group.Type: GrantFiled: March 11, 2016Date of Patent: October 8, 2019Assignee: MITSUI CHEMICALS, INC.Inventors: Takashi Uchida, Chikako Kouda, Hoang Yen Dinh
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Patent number: 10125213Abstract: A polyurethane dispersion is a polyurethane dispersion in which polyurethane resin produced by reaction of an isocyanate group-terminated prepolymer with a chain extender is dispersed in water. The isocyanate group-terminated prepolymer is produced by at least allowing a polyisocyanate component containing xylylene diisocyanate and/or hydrogenated xylylene diisocyanate to react with a polyol component containing diol having 2 to 6 carbon atoms, a low-molecular-weight polyol having a functionality of three or more, and an active hydrogen group-containing compound containing a hydrophilic group. The chain extender contains an alkoxysilyl compound having a primary amino group, or a primary amino group and a secondary amino group, and the molar ratio of the hydroxyl group in the low-molecular-weight polyol having a functionality of three or more is less than 25% relative to a total mol 100% of the hydroxyl group in the polyol component.Type: GrantFiled: July 16, 2014Date of Patent: November 13, 2018Assignee: MITSUI CHEMICALS, INC.Inventors: Takashi Uchida, Chikako Kouda, Akihiro Oishi
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Publication number: 20180037005Abstract: In a laminate film 1 including a substrate 2, a polyurethane layer 3 formed on the substrate 2, and a metal vapor deposition layer 4 formed on the polyurethane layer 3, a coating liquid is applied on the substrate 2 and dried to produce the polyurethane layer 3. The coating liquid contains a water dispersible polyisocyanate and a polyurethane dispersion containing polyurethane resin produced by reaction of an isocyanate group-terminated prepolymer with a chain extender. The isocyanate group-terminated prepolymer is produced by reaction of a polyisocyanate component including xylylene diisocyanate and/or hydrogenated xylylene diisocyanate and a polyol component including diol having 2 to 6 carbon atoms and an active hydrogen group-containing compound containing a hydrophilic group.Type: ApplicationFiled: March 11, 2016Publication date: February 8, 2018Inventors: Takashi UCHIDA, Chikako KOUDA, Hoang Yen DINH
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Publication number: 20160159965Abstract: A polyurethane dispersion is a polyurethane dispersion in which polyurethane resin produced by reaction of an isocyanate group-terminated prepolymer with a chain extender is dispersed in water. The isocyanate group-terminated prepolymer is produced by at least allowing a polyisocyanate component containing xylylene diisocyanate and/or hydrogenated xylylene diisocyanate to react with a polyol component containing diol having 2 to 6 carbon atoms, a low-molecular-weight polyol having a functionality of three or more, and an active hydrogen group-containing compound containing a hydrophilic group. The chain extender contains an alkoxysilyl compound having a primary amino group, or a primary amino group and a secondary amino group, and the molar ratio of the hydroxyl group in the low-molecular-weight polyol having a functionality of three or more is less than 25% relative to a total mol 100% of the hydroxyl group in the polyol component.Type: ApplicationFiled: July 16, 2014Publication date: June 9, 2016Applicant: MITSUI CHEMICALS, INC.Inventors: Takashi UCHIDA, Chikako KOUDA, Akihiro OISHI
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Patent number: 6797770Abstract: A coating composition capable of forming an alkali-soluble lubricating film, which contains as main components an aqueous polyurethane composition (A) and a lubricating functionality-providing agent (B) at 1-30 wt % with respect to the solid content of the aqueous polyurethane composition, having excellent press moldability and scratch resistance, as well as lubricating surface treated metal articles with excellent press moldability and scratch resistance, that are coated with the coating composition to a dry film thickness of 0.5-5 &mgr;m. The coating composition preferably further contains as a main component silica particles (C) in an amount of 1-30 wt % with respect to the solid content of the aqueous polyurethane composition.Type: GrantFiled: October 31, 2001Date of Patent: September 28, 2004Assignees: Nippon Steel Corporation, Mitsui Takeda Chemicals, INCInventors: Yoichiro Mori, Makoto Yamasaki, Masahiro Fuda, Ryosuke Wake, Tsutomu Tawa, Chikako Kouda, Fumiaki Hirata
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Publication number: 20040121162Abstract: In order to provide an alkali-soluble-film surface-lubricated metal product excellent in moldability and long-term stable film-removability independent of the film drying temperature, an alkali-soluble lubricating film mainly comprising an alkali-soluble polyurethane aqueous composition containing a polyether polyol as a skeleton and also containing a carboxyl group within the molecule, and a lubricating function-imparting agent in an amount of 1 to 30 mass % based on the alkali-soluble polyurethane aqueous composition is coated on both surfaces or one surface of a metal to have a film thickness of 0.5 to 10 &mgr;m, thereby constituting an alkali-soluble-film surface-lubricated metal product excellent in moldability and long-term stable film-removability independent of the film drying temperature, wherein the elastic modulus of the film after coating is from 0.5 to 20 GPa at 25° C.Type: ApplicationFiled: September 30, 2003Publication date: June 24, 2004Inventors: Ikuro Yamaoka, Hiroshi Kanai, Akihiro Miyasaka, Yoichiro Mori, Tsutomu Tawa, Mitsuhiro Nishimura, Chikako Kouda
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Patent number: 6730407Abstract: A soluble lubricating surface-treated stainless steel sheet with excellent shapability for fuel tanks, comprising a substrate having on both surfaces or one surface thereof a soluble lubricating resin film. Preferably, the soluble lubricating resin film mainly comprises (A) an alkali-soluble polyurethane resin composition containing a carboxyl group or a sulfonic acid group within the molecule and having a glass transition point of 100° C. or more as a dry film and (B) a lubricating function-imparting agent in an amount of from 1 to 30% by mass based on the polyurethane composition.Type: GrantFiled: August 8, 2001Date of Patent: May 4, 2004Assignees: Nippon Steel Corporation, Mitsui Takeda Chemicals, Inc.Inventors: Yoichiro Mori, Akihiro Miyasaka, Hiroshi Kanai, Ikuro Yamaoka, Tsutomu Tawa, Chikako Kouda, Mitsuhiro Nishimura
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Publication number: 20040033909Abstract: A surface-lubricated metal product, with excellent shapability, comprising a metal having coated on both surfaces, or one surface, thereof an alkali-soluble lubricating film mainly comprising an alkali-soluble polyurethane aqueous composition containing a carboxyl group or a sulfonic acid group within the molecule, and a lubricating function-imparting agent in an amount of 1 to 30 mass % based on the alkali-soluble polyurethane aqueous composition, the film being coated to have a film thickness of 0.5 to 10 &mgr;m and the elastic modulus of the film after coating being 0.5 to 20 GPa at 25° C.Type: ApplicationFiled: May 15, 2003Publication date: February 19, 2004Inventors: Ikuro Yamaoka, Hiroshi Kanai, Akihiro Miyasaka, Yoichiro Mori, Tsutomu Tawa, Mitsuhiro Nishimura, Chikako Kouda