Patents Assigned to The Nippon Synthetic Chemical Industry Co., Ltd.
  • ACETOACETYL GROUP-CONTAINING POLYVINYL ALCOHOL RESIN POWDER COMPOSITION, AND PRODUCTION METHOD THEREFOR
    Publication number: 20160237183
    Abstract: Acetoacetyl group-containing polyvinyl alcohol resin powder composition containing a C1 to C3 alcohol in an amount of 0.5 to 4 wt % is produced by allowing a powdery polyvinyl alcohol resin to react with diketene, washing the resulting acetoacetyl group-containing polyvinyl alcohol resin particles with the C1 to C3 alcohol to remove an unreacted portion of the diketene, and drying the intermediate acetoacetyl group-containing polyvinyl alcohol resin particles composition at a temperature of 40° C. to 120° C. at a pressure of not higher than 20 kPa after the washing. The acetoacetyl group-containing polyvinyl alcohol resin powder composition thus produced is highly soluble in water.
    Type: Application
    Filed: October 10, 2014
    Publication date: August 18, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Yoshihito YAMAUCHI
  • CROSSLINKING AGENT, CROSSLINKED POLYMER, AND COMPOUND
    Publication number: 20160237245
    Abstract: An object of the invention is to provide a crosslinking agent with which a crosslinked polymer that suffers little coloring with the lapse of time and shows excellent viscosity stability is obtained. The crosslinking agent of the invention includes a compound which contains two or more alkylhydrazide groups represented by the following general formula (1). (In formula (1), R1 represents an alkyl group having 1-10 carbon atoms, and symbol * is a linking bond.
    Type: Application
    Filed: October 8, 2014
    Publication date: August 18, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chizuko FURO, Taiji KANDA, Shusaku MANDAI, Takeshi KURODA
  • SAPONIFIED ETHYLENE-VINYL ESTER COPOLYMER COMPOSITION AND MULTILAYERED STRUCTURE USING SAID COMPOSITION
    Publication number: 20160215116
    Abstract: Provided are: an EVOH resin composition which can exhibit excellent gas-barrier performance after being subjected to a hot water treatment and rarely generates blisters even when being placed under a high-temperature and high-humidity condition; and a multilayered structure including a layer of the resin composition as a gas-barrier layer. A hydrate-formable alkaline earth metal salt having a specific water absorption property, particularly completely or partially dehydrated alkaline earth metal salt of acid, or a mixture thereof. The acid is selected from the group consisting of lactic acid, silicic acid, phosphoric acid, and citric acid. The partially dehydrated alkaline earth metal salt of the salt has a water content of 50 wt % or less.
    Type: Application
    Filed: April 1, 2016
    Publication date: July 28, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Shouichi KANI
  • Resin composition, melt-formed article, multilayer structure, and process for producing resin composition
    Patent number: 9376545
    Abstract: The present invention provides a resin composition which is excellent in gas-barrier properties after a hot-water treatment and excellent in handling properties without increasing viscosity of the resin composition in a melt-kneading step at forming. The invention provides a resin composition containing a thermoplastic resin (A) and a partially dehydrated product or completely dehydrated product (B) of hydrated carboxylic acid salt.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: June 28, 2016
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Shinji Okamoto, Hiroki Masumoto, Kouji Yamada, Tomonori Yoshida
  • BINDER FOR LITHIUM ION SECONDARY BATTERY ELECTRODE, PRODUCTION METHOD FOR LITHIUM ION SECONDARY BATTERY ELECTRODE, LITHIUM ION SECONDARY BATTERY ELECTRODE, AND LITHIUM ION SECONDARY BATTERY
    Publication number: 20160181617
    Abstract: The present invention provides a binder for a lithium ion secondary battery electrode that has good adhesive properties and a low degree of swelling with respect to an electrolytic solution. There is used a binder for a lithium ion secondary battery electrode, which comprises a polyvinyl acetal-based resin (A) containing structural units represented by chemical formulae (1) to (3): (R1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms), and (R2 is a functional group containing an ethylenically unsaturated bond).
    Type: Application
    Filed: March 2, 2016
    Publication date: June 23, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masato AOYAMA, Yasuhiro AOKI, Mitsuo SHIBUTANI
  • ETHYLENE-VINYL ALCOHOL COPOLYMER COMPOSITION, MULTILAYERED SHEET AND SECONDARY MOLDED ARTICLE THEREOF USING SAME
    Publication number: 20160177080
    Abstract: Disclosed is an EVOH resin composition comprising 2 types of EVOH resins having a different ethylene content and saponification degree from each other. The EVOH resin composition can reduce the occurrence of streaks with retaining gas-barrier property even when applying to vacuum-pressure forming. The use of the resin composition also make it possible to provide a method for producing a container such as cup having excellent gas-barrier property and appearance by vacuum-pressure forming and the like.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 23, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Kota INOUE
  • METHOD OF TRANSPORTING SAPONIFIED ETHYLENE-VINYL ESTER-BASED COPOLYMER PELLETS
    Publication number: 20160176558
    Abstract: There is provided a method of transporting saponified ethylene-vinyl ester-based copolymer pellets comprising maintaining an interior of a hermetic container in a state of higher pressure than ambient atmosphere during a transport of the saponified ethylene-vinyl ester-based copolymer pellets encased in the hermetic container. The method is capable of transporting dry saponified ethylene-vinyl ester-based copolymer pellets in large quantities at one time without the moisture absorption of the pellets in the course of the transport of the pellets.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Yasufumi BENIYA, Shinta MIYAZUMI
  • METHOD OF TRANSPORTING SAPONIFIED ETHYLENE-VINYL ESTER-BASED COPOLYMER PELLETS
    Publication number: 20160176557
    Abstract: A method of transporting saponified ethylene-vinyl ester-based copolymer pellets by using a hermetic container including a pressurizing means for applying pressure to the interior of the container, and a transport means for transporting the hermetic container. The method comprises the steps of: inserting the saponified ethylene-vinyl ester-based copolymer pellets into the hermetic container to close the hermetic container; and maintaining the interior of the hermetic container in a state of higher pressure than the ambient atmosphere by using the pressurizing means while the hermetic container is transported to a destination by using the transport means.
    Type: Application
    Filed: February 3, 2015
    Publication date: June 23, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Yasufumi BENIYA, Shinta MIYAZUMI
  • COATING AGENT COMPOSITION FOR BATTERY ELECTRODES OR SEPARATOR
    Publication number: 20160141625
    Abstract: A coating agent composition for battery electrode or separator, comprises a vinyl alcohol copolymer having a structural unit represented by the general formula (1), and an aqueous emulsion of a synthetic resin obtained by polymerizing a copolymerizable monomer having an acrylic monomer as a main component, or an aqueous emulsion of a styrene thermoplastic elastomer.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Applicants: KYORITSU CHEMICAL & CO., LTD., THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Taichi Uemura, Satoshi Yamazaki, Mitsuo Shibutani, Kazuo Aiba
  • COATING COMPOSITION, COATING FILM OBTAINED THEREFROM, MULTILAYER STRUCTURE, AND PROCESS FOR PRODUCING MULTILAYER STRUCTURE
    Publication number: 20160115336
    Abstract: The present invention provides a coating film having a high level of heat resistance and a coating composition from which the coating film can be obtained. The coating composition of the invention includes (A) an emulsion which includes a polyvinyl alcohol-based resin as a dispersing agent, an acrylic resin as a dispersoid, and water as a dispersion medium and (B) fibrous metal oxide microparticles, wherein the fibrous metal oxide microparticles have an average major-axis length of 10 to 2,500 nm and an average aspect ratio of 10 to 450.
    Type: Application
    Filed: May 28, 2014
    Publication date: April 28, 2016
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Mitsuo SHIBUTANI, Misa KUWADA
  • Resin composition and molded product thereof
    Patent number: 9296887
    Abstract: Provided is a resin composition from which a melt molded product which is excellent in transparency, gas barrier property and flexibility and has biodegradability can be obtained. The present invention relates to a resin composition, which comprises a polyvinyl alcohol-based resin (i) comprising a structural unit represented by the following general formula (1) and an aliphatic-aromatic polyester (ii) comprising a specific component, wherein each of R1, R2 and R3 independently represents a hydrogen atom or an organic group, X represents a single bond or a bonding chain, and each of R4, R5 and R6 independently represents a hydrogen atom or an organic group.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: March 29, 2016
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Mitsuo Shibutani, Norihito Sakai, Lars Boerger, Gabriel Skupin
  • AQUEOUS METAL SURFACE TREATMENT AGENT FOR LITHIUM ION SECONDARY BATTERY
    Publication number: 20160083608
    Abstract: This is to provide an aqueous metal surface treatment agent for a lithium ion secondary battery which can improve interlaminar adhesiveness between a metal member and a resin coating layer such as a film or a coated film, and solvent resistance without using trivalent chromium. The aqueous metal surface treatment agent for a lithium ion secondary battery comprises a polyvinyl alcohol resin containing 2 to 15 mol % of a 1,2-diol structural unit represented by the formula (1): Having a degree of saponification of 90 to 99.9 mol % and an average degree of polymerization of 250 to 3000; and a metallic crosslinking agent.
    Type: Application
    Filed: December 3, 2015
    Publication date: March 24, 2016
    Applicants: KYORITSU CHEMICAL & CO., LTD., THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Takahiro Minowa, Hiroyuki Tanaka, Satoshi Yamazaki, Mitsuo Shibutani
  • Process for preparing ethylene-vinyl alcohol copolymer composition, and process for producing ethylene-vinyl alcohol copolymer pellets
    Patent number: 9221194
    Abstract: An ethylene-vinyl alcohol copolymer alcohol solution comprising an ethylene-vinyl alcohol copolymer and an alcohol having a carbon number of not greater than 4 is brought into contact with an aqueous solution of at least one additive selected from a carboxylic compound, a boron compound and a phosphoric compound to replace a part or all of the alcohol with water, whereby an ethylene-vinyl alcohol copolymer composition containing the additive is prepared. This preparation process makes it possible to efficiently replace the alcohol in the ethylene-vinyl alcohol copolymer alcohol solution with water, and homogeneously incorporate the thermal stabilizer in the composition.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: December 29, 2015
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Keisuke Fujimura, Yasufumi Beniya, Akio Harao, Yoshiharu Nagao, Shinji Okamoto
  • SILYL GROUP-CONTAINING POLYVINYL ALCOHOL-BASED RESIN AND USE THEREOF
    Publication number: 20150368384
    Abstract: An object of the present invention is to provide a novel silyl group-containing PVA-based resin having excellent adhesiveness to inorganic adherend such as glass, and a short defoam time, and to provide a use of the PVA-based resin. The novel silyl group-containing polyvinyl alcohol-based resin contains a vinyl alcohol unit, 1,2-diol unit in a side chain, and a silyl group-containing unit. An aqueous solution of the silyl group-containing polyvinyl alcohol-based resin is useful for an adhesive because of its excellent defoaming property and superior adhesiveness to inorganic adherend such as glass.
    Type: Application
    Filed: January 20, 2014
    Publication date: December 24, 2015
    Applicants: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD., THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Mitsuo SHIBUTANI, Akinobu INAKUMA, Misa KUWADA
  • RESIN COMPOSITION AND MOLDED ARTICLE OF THEREOF
    Publication number: 20150337129
    Abstract: A resin composition of the present invention comprises a polyvinyl alcohol (PVA)-based resin (A) which comprises a structural unit represented by the following general formula (1) and has a degree of saponification of 85-94% by mole and a polybutylene adipate/butylene terephthalate copolymer (PBAT) (B), wherein a content ratio of the PVA-based resin (A) to the PBAT (B) ((A)/(B)) is from 80/20 to 60/40 (by weight). [In the formula, R1 to R6 each independently represent a hydrogen atom or an organic group, and X represents a single bond or a linking chain.
    Type: Application
    Filed: December 11, 2013
    Publication date: November 26, 2015
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Norihito SAKAI, Kaoru INOUE, Yasuhiro HIRANO
  • ACRYLIC RESIN EMULSION FOR AQUEOUS INKJET INK, AND AQUEOUS INKJET INK COMPOSITION EMPLOYING THE SAME
    Publication number: 20150322282
    Abstract: To provide an aqueous inkjet ink composition excellent in glossiness and other ink properties and imparted with a higher viscosity without the use of a tackifier, an acrylic resin emulsion for an aqueous inkjet ink is provided, which contains a particulate acrylic resin having an acid value of 1 to 100 mgKOH/g, wherein an acid-group-containing monomer is present at a content mole ratio (As) in surface regions of particles of the particulate acrylic resin and present at a content mole ratio (At) in the overall acrylic resin particles as measured with a 1H spin diffusion time of 5 ms, and a ratio (As/At) of the content mole ratio (As) to the content mole ratio (At) is not less than 9.
    Type: Application
    Filed: December 27, 2013
    Publication date: November 12, 2015
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Akihisa MATSUMOTO, Toshimitsu INOUE, Taiji KANDA
  • RESIN COMPOSITION AND FILM FORMED FROM SAID RESIN COMPOSITION
    Publication number: 20150307674
    Abstract: The present invention provides the resin composition having excellent inflation moldability by which a film having high water vapor transmission rate (WVTR) and low elastic modulus can be produced, and a film which is formed from the resin composition. The present invention relates to a resin composition comprising a polyamide resin (A) and a polyvinyl alcohol-based resin (B) which includes 2-10% by mole of structural unit represented by the following general formula (1) and has a degree of saponification of 70-90% by mole, and a film which is formed from the resin composition. [In the formula, R1 to R6 each independently represent a hydrogen atom or an organic group, and X represents a single bond or a linking chain.
    Type: Application
    Filed: December 11, 2013
    Publication date: October 29, 2015
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Norihito SAKAI, Kaoru INOUE
  • Polyvinyl acetal-based resin
    Patent number: 9139675
    Abstract: The present invention provides a polyvinyl acetal-based resin which has a high elastic modulus, is excellent in solubility to an alcoholic solvent, and gives a highly transparent alcohol solution. The polyvinyl acetal-based resin is obtained by acetalizing a polyvinyl alcohol-based resin (A) which has 0.1 to 1.5% by mol of a 1,2-diol structural unit represented by the following general formula (1) and a degree of saponification of 98.5% by mol or more: wherein R1, R2, and R3 each independently represents a hydrogen atom or an organic group; X represents a single bond or a bonding chain; and R4, R5, and R6 each independently represents a hydrogen atom or an organic group.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: September 22, 2015
    Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Mitsuo Shibutani, Masahiro Saito
  • Resin composition and molded article thereof
    Patent number: 9109104
    Abstract: There is provided a resin composition affording a melt-molded article having excellent gas barrier properties and flex crack resistance. The present invention relates to a resin composition comprising a polyvinyl alcohol resin (A) having a 1,2-diol structural unit represented by the following general formula (1), a styrene-based thermoplastic elastomer (B), and a polyamide graft block copolymer (C) containing a polymer block of an aromatic vinyl compound and a polymer block of an olefinic compound in a main chain and having a graft chain composed of a polyamide: wherein each of R1, R2, and R3 independently represents a hydrogen atom or an organic group, X represents a single bond or a linking chain, and each of R4, R5, and R6 independently represents a hydrogen atom or an organic group.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: August 18, 2015
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Mitsuo Shibutani, Kaoru Inoue, Norihito Sakai
  • HEAT-SENSITIVE RECORDING MEDIUM, AND COATING LIQUID FOR FORMING HEAT-SENSITIVE COLOR-DEVELOPING LAYER
    Publication number: 20150212409
    Abstract: A heat-sensitive color-developing layer of a heat-sensitive recording medium and a coating liquid for forming the heat-sensitive color-developing layer each contain a leuco dye, a color developing agent and a polyvinyl alcohol resin containing an acetoacetyl group and a sulfonic acid group or a combination of a polyvinyl alcohol resin containing an acetoacetyl group and a polyvinyl alcohol resin containing a sulfonic acid group. Therefore, the heat-sensitive recording medium and the coating liquid for forming the heat-sensitive color-developing layer are excellent in light resistance, and free from unintended color development and discoloration even when exposed to ultraviolet radiation.
    Type: Application
    Filed: November 5, 2013
    Publication date: July 30, 2015
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masahiro Saito, Mayuka Kuroda