Patents Assigned to The Nippon Synthetic Chemical Industry Co., Ltd.
  • Patent number: 10570327
    Abstract: An object of the present invention is to improve the water dispersibility of the PVA-based resin and also to suppress the swelling of the PVA-based resin. The object is achieved by organic-inorganic composite particles, which have an average particle size of preferably 1 ?m to 3,000 ?m, including a polyvinyl alcohol-based resin and a component having a three-dimensional siloxane crosslinked structure that is derived from a hydrolysis-polycondensation product of an alkoxysilane and/or a low condensate thereof, wherein the alkoxysilane includes a T unit and/or a Q unit as a structural unit (s), and a Si content with respect to a total weight of the composite particles is 0.1 wt % or more and 23 wt % or less in terms of SiO2.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: February 25, 2020
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Hanako Katou, Shouhei Hirase, Takumi Watanabe, Shoya Yoda, Shusaku Mandai
  • Patent number: 10550038
    Abstract: A cement admixture includes a crosslinked product of a modified polyvinyl alcohol-based resin, wherein the dissolution rate of 1 g of the crosslinked product of a modified polyvinyl alcohol-based resin for 1 liter of water at 70° C. is 50% or less.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: February 4, 2020
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Takahiro Saka, Chizuko Furo, Shusaku Mandai
  • Publication number: 20190216081
    Abstract: A liquid spray agent for plants includes: a polyvinyl alcohol resin (A) having a saponification degree of from 30 mol % to 60 mol %; and an anionic surfactant (B). The liquid spray agent for plants has enhanced spreading property and stability as a spray agent.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Satoshi IKUBO, Chizuko FURO, Shusaku MANDAI
  • Publication number: 20190217588
    Abstract: The present invention relates to a laminated film for fiber adhesion and/or fiber sheet surface protection in which a layer [I] containing a thermosetting composition [i] and a support film [II] are laminated, wherein the thermosetting composition [i] contains a thermal polymerization initiator (C) having a 10-hour half-life temperature of 65° C. or higher.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Yasuhiro AOKI, Katsuhiko KATSUMA
  • Publication number: 20190211200
    Abstract: A resin composition contains: (A) a polyvinyl alcohol resin; and (B) a block copolymer having a polymer block (b1) of an aromatic vinyl compound, and at least one of a polymer block (b2) of a conjugated diene compound or isobutylene and a hydrogenation block (b3) resulting from hydrogenation of the conjugated diene compound or isobutylene; wherein the polymer block (b1) of the aromatic vinyl compound is present in a proportion of not less than 10 wt. % based on the total amount of the polyvinyl alcohol resin (A) and the block copolymer (B).
    Type: Application
    Filed: March 14, 2019
    Publication date: July 11, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Norihito SAKAI, Yuya FUKAMACHI
  • Publication number: 20190211237
    Abstract: An adhesive composition is provided, which is excellent in moist heat resistance and adhesion to a plastic sheet containing a plasticizer or similar ingredient, particularly to a vinyl chloride resin sheet. The adhesive composition contains: (A) an acrylic resin; and (B) a polyester resin (B) having a glass transition temperature of not higher than 50° C. and a number-average molecular weight of 10,000 to 50,000.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Yuta KAWAZOE, Junichiro SAKAI
  • Publication number: 20190202952
    Abstract: A molding material comprising a pellet group of at least 20 saponified ethylene-vinyl ester-based copolymer pellets, wherein at least 95% of the pellets have a surface that is substantially a single closed surface, and when a maximum outer diameter of a pellet is taken as a long diameter and a minimum diameter in a cross section having the greatest area among the cross sections perpendicular to the long diameter is taken as a short diameter, the average value of the long diameter/short diameter ratio of at least 20 pellets taken from the pellet group is 1.6 or less and the standard deviation of the long diameter/short diameter ratio of the at least 20 pellets is 0.13 or less.
    Type: Application
    Filed: March 6, 2019
    Publication date: July 4, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Daichi NISHIMURA, Makoto HATANAKA, Shintaro USUI
  • Publication number: 20190194504
    Abstract: A multilayer structure includes an adhesive resin layer provided between a thermoplastic resin layer and a gas barrier resin layer, wherein the adhesive resin layer is formed from a resin composition containing a polyolefin resin (A) containing at least one of a carboxyl group and an acid anhydride group, and a fatty acid zinc salt (B), wherein the fatty acid zinc salt (B) is present in the resin composition in a proportion of 40 to 250 ppm on a metal basis based on the amount of the adhesive resin layer.
    Type: Application
    Filed: January 16, 2019
    Publication date: June 27, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Ryohei KOMURO
  • Publication number: 20190193387
    Abstract: A laminate shaping support material is provided which includes one of: a resin composition containing a polyvinyl alcohol resin having a primary hydroxyl group at its side chain, and having a heat of fusion of 10 to 30 J/g at its melting point (Embodiment (X)); and a resin composition containing a polyvinyl alcohol resin, and a block copolymer including a polymer block of an aromatic vinyl compound, at least one of a polymer block of a conjugated diene compound and a block of a hydrogenated conjugated diene compound, and a functional group reactive with a hydroxyl group (Embodiment (Y)). Therefore, the laminate shaping support material according to Embodiment (X), for example, is excellent in shape stability and adhesiveness to a model material. The laminate shaping support material according to Embodiment (Y) is excellent in peelability and forming stability.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Norihito SAKAI, Shusaku MANDAI
  • Patent number: 10308732
    Abstract: The purpose of the invention is to provide: a package for EVOH resin pellets which is capable of providing the EVOH resin pellets almost free from powder even in a case where the package contains the powder generated therein during transportation or the like after shipment; and EVOH resin pellets contaminated with very small amount of the powder in a case where a user uses the EVOH resin pellets as a molding material. A package, where pellets each having a substantially circular or oval cross-section are packed in a packaging container whose inner surface has a surface resistivity of 1.0×1014? or more, is capable of providing pellets to which 0.8 wt % or less of powder adhered relative to the weight of the pellets.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: June 4, 2019
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Ikko Matsui
  • Publication number: 20190153290
    Abstract: An object of the present invention is to improve the water dispersibility of the PVA-based resin and also to suppress the swelling of the PVA-based resin. The object is achieved by organic-inorganic composite particles, which have an average particle size of preferably 1 ?m to 3,000 ?m, including a polyvinyl alcohol-based resin and a component having a three-dimensional siloxane crosslinked structure that is derived from a hydrolysis-polycondensation product of an alkoxysilane and/or a low condensate thereof, wherein the alkoxysilane includes a T unit and/or a Q unit as a structural unit (s), and a Si content with respect to a total weight of the composite particles is 0.1 wt % or more and 23 wt % or less in terms of SiO2.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 23, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Hanako KATOU, Shouhei HIRASE, Takumi WATANABE, Shouya YODA, Shusaku MANDAI
  • Publication number: 20190100610
    Abstract: The present invention provides an ethylene-vinyl alcohol copolymer which can be melt-molded at lower temperatures than conventional ethylene-vinyl alcohol copolymers to give molded objects that are inhibited from suffering undesirable coloration or having fish-eyes and that have excellent gas barrier properties. The ethylene-vinyl alcohol copolymer of the invention has a carboxylic acid ester group at a polymer terminal.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 4, 2019
    Applicants: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD., THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Nobuaki SATO
  • Publication number: 20190077945
    Abstract: A resin composition can be formed into a product excellent in coloration resistance even if being subjected to a melt-forming process and the like a plurality of times and hence frequently subjected to thermal history. A product formed from the resin composition, and a multilayer structure are also provided. The resin composition contains: (A) a saponified ethylene-vinyl ester copolymer; and (B) a sorbic acid ester; wherein the sorbic acid ester (B) is present in a proportion of 0.001 to 10 ppm based on the total weight of the saponified ethylene-vinyl ester copolymer (A) and the sorbic acid ester (B).
    Type: Application
    Filed: November 13, 2018
    Publication date: March 14, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Honoka HASHIMOTO, Shouichi KANI
  • Patent number: 10196505
    Abstract: A resin composition is provided, which comprises: an ethylene-vinyl acetate copolymer (A); and a saponified ethylene-vinyl acetate copolymer (B) having an ethylene content of not less than 70 mol %, wherein the component (B) is present in a proportion of 1 to 30 parts by weight based on 100 parts by weight of the component (A). Where the resin composition is used in combination with a scrap laminate including a polyolefin resin layer and an EVOH layer for recycling the scrap laminate, die build-up is suppressed, and a product formed from the resulting recycled material is excellent in appearance and substantially free from coloration.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: February 5, 2019
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Kenji Ninomiya, Kaname Kida, Yoshitaka Matsumura
  • Patent number: 10196468
    Abstract: The present invention provides a saponified ethylene-vinyl ester copolymer product from which a film having reduced fish eyes can be obtained and a method for producing an ethylene-vinyl ester copolymer that is a precursor thereof. At the time of producing the ethylene-vinyl ester copolymer, as a vinyl ester monomer, the oxygen concentration at storage and/or transportation is adjusted to from 2 to 8 ppm and the oxygen concentration at polymerization is adjusted to less than 2 ppm.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 5, 2019
    Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Yoshiharu Nagao, Shuuichi Fukuyama, Kouji Yamada, Tomonori Yoshida
  • Publication number: 20190010305
    Abstract: An ethylene-vinyl alcohol copolymer composition comprising: (A) an ethylene-vinyl alcohol copolymer; (B) a phosphoric acid compound; and an iron compound; wherein the iron compound is present in a proportion of 0.01 to 100 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition; wherein the phosphoric acid compound (B) is present in a proportion of 1 to 100 ppm on a phosphorus basis based on the weight of the ethylene-vinyl alcohol copolymer composition. Therefore, the ethylene-vinyl alcohol copolymer composition has an excellent adhesive property with respect to a metal surface.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 10, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Daichi NISHIMURA, Takuya NAKAJIMA, Masahiko TANIGUCHI, Koji YAMADA
  • Publication number: 20190010296
    Abstract: The present invention provides ethylene-vinyl alcohol copolymer composition pellet reduced in coloration. The ethylene-vinyl alcohol copolymer composition pellet of the invention include an ethylene-vinyl alcohol copolymer (A), a polyamide resin (B), and an alkaline earth metal salt (C) and have a yellowness index (YI) value of 10 or less when examined with a spectral color-difference meter by a transmission method.
    Type: Application
    Filed: December 12, 2016
    Publication date: January 10, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Makoto HATANAKA
  • Publication number: 20190002612
    Abstract: An ethylene-vinyl alcohol copolymer composition is provided, which contains an ethylene-vinyl alcohol copolymer and an iron compound, wherein the ethylene-vinyl alcohol copolymer has an ethylene content of 20 to 60 mol %, wherein the iron compound is present in a proportion of 0.01 to 100 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 3, 2019
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Daichi NISHIMURA, Takuya NAKAJIMA, Masahiko TANIGUCHI, Koji YAMADA
  • Publication number: 20180371229
    Abstract: The purpose of the present invention is to provide: an EVOH resin-based composition (pellet) which has a desired melt viscosity without increasing the boron content, thereby being effective for surging prevention; and a method for producing the resin composition. The EVOH-based resin composition contains a boric acid compound and the boric acid compound contains tetracoordinated boron. An EVOH-based resin paste containing a boric acid compounds is brought into contact with an aqueous solution containing a boric acid compound and alkali metal salt at an elevated temperature and an elevated pressure so that the amount of alkali metal salt is from 300 to 1000 ppm based on the EVOH-based resin paste, thereby converting the boron of the boric acid compound to tetracoordinated structure.
    Type: Application
    Filed: December 16, 2016
    Publication date: December 27, 2018
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Nobuaki SATO, Taiji KANDA, Ayano NAKASHIMA
  • Publication number: 20180371179
    Abstract: In resin composition pellets containing a desiccant, an object of the present invention is to be able to avoid bridging phenomena and stabilize the feed rate, which is to say, to improve feed stability. Provided is a resin composition pellet containing a thermoplastic resin and a desiccant and having an elliptic cylindrical shape, wherein the ratio of the short diameter b to the long diameter a of the ellipsoidal face S of the pellet P (short diameter b/long diameter a) is 0.5 to 0.9.
    Type: Application
    Filed: December 22, 2016
    Publication date: December 27, 2018
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventor: Shouichi KANI