Patents Assigned to TOYOBO MC CORPORATION
  • Patent number: 11999850
    Abstract: The present invention aims to provide a glass-fiber-reinforced polyamide resin composition, characterized in that, the composition contains a crystalline aliphatic polyamide resin (A), an amorphous polyamide resin (B), an acrylic resin (C), mica (D), glass fiber (E) and a master batch of carbon black (F) in a ratio by mass of (17 to 30):(10 to 16):(3 to 8):(10 to 25):(20 to 50):(1 to 8), respectively, in that, a mass ratio of (A) and (B) ((B)/(A)) satisfies 0.50 to 0.61, and in that, the composition further contains a copper compound (G) in a rate of 0.005 to 1.0 part by mass when a total amount of the ingredients (A) to (F) is taken as 100 parts by mass. From the glass-fiber-reinforced polyamide resin composition, it is possible to obtain a molded product that is highly excellent in a surface appearance (textured surface uniformity) and has a weather resistance in a level being enough for maintaining an excellent surface appearance even after the weathering test.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 4, 2024
    Assignee: TOYOBO MC CORPORATION
    Inventors: Nobuhiro Yoshimura, Ryo Umeki
  • Publication number: 20240174798
    Abstract: An object of the present invention is to provide an adhesive composition and a coating composition that have storage stability, high adhesiveness, and excellent blocking resistance and water resistance. The present invention provides a crystalline polyester resin comprising: a polyvalent carboxylic acid component and polyhydric alcohol component as a copolymerization components, wherein, 30 to 70 mol % of terephthalic acid, 10 to 60 mol % of 1,4-cyclohexanedicarboxylic acid, 5 to 30 mol % of aliphatic dicarboxylic acid having 10 or smaller of carbon atoms, and less than 3 mol % of an aromatic dicarboxylic acid component having a sulfonate group are contained as the polyvalent carboxylic acid component; and 50 to 100 mol % of 1,4-butanediol is contained as the polyhydric alcohol; wherein, an acid value of the crystalline polyester resin is 100 to 600 eq/t; a glass transition temperature of the crystalline polyester resin is ?30 to 30° C.; a melting point of the crystalline polyester resin is 70 to 160° C.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 30, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hiroki OKAJIMA, Tadahiko MIKAMI, Ryosuke KANDA
  • Patent number: 11993713
    Abstract: The present invention provides a polyamide resin composition containing (A) a crystalline polyamide resin containing a polycapramide resin as a main component, (B) a semi-aromatic amorphous polyamide resin, and (C) an inorganic reinforcing material, wherein the polyamide resin composition contains, as the (C), (C-1) a glass fiber, (C-2) a wollastonite having a needle shape, and (C-3) an inorganic reinforcing material of a plate-like crystal; a mass ratio of the (B) to (A) satisfies 0.35?(B)/(A)?0.80; when a total content of the (A), (B), and (C) is 100 parts by mass, a content (parts) of each component satisfies 30?(A)+(B)?55; 10?(B)?23; 20?(C-1)?40; 8?(C-2)?25; 8?(C-3)?25; 45?(C-1)+(C-2)+(C-3)?70; and an amount of a carboxyl group in the polyamide resin composition is less than 120 meq/kg.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: May 28, 2024
    Assignee: TOYOBO MC CORPORATION
    Inventors: Nobuhiro Yoshimura, Ryo Umeki
  • Publication number: 20240166863
    Abstract: It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising: a polyester resin (A) having an acid value of 100 eq/ton or more and smaller than 500 eq/ton; and a polyester resin (B) having an acid value of 500 eq/ton or more, wherein a content of the polyester resin (A) is 55 parts by mass or more and 95 parts by mass or smaller, and a content of the polyester resin (B) is 5 parts by mass or more and 45 parts by mass or smaller when a total mass of solid contents of the polyester resin (A) and the polyester resin (B) is 100 parts by mass.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 23, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hiroyuki MIEDA, Tadahiko MIKAMI, Katsuya SHIMENO
  • Publication number: 20240158571
    Abstract: The present invention aims to provide a thermoplastic polyester elastomer having particularly excellent extrusion moldability and extrusion molding stability, from which a hollow and long molded article can be stably produced with a uniform thickness for a long time. A polyester elastomer comprising a hard segment made of a polyester constituted of an aromatic dicarboxylic acid and an aliphatic or alicyclic diol and a soft segment made of an aliphatic polycarbonate, wherein the hard segment and the soft segment are bonded to each other, wherein the polyester elastomer is at least partially end-capped with a reactive compound, wherein the reactive compound comprises a polycarbodiimide, wherein the polyester elastomer has an acid value of 15 eq/ton or less, and wherein, under a condition of 230° C.
    Type: Application
    Filed: March 7, 2022
    Publication date: May 16, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Yuki TAMASHIRO, Takuya AKAISHI, Yoshitaka AYUZAWA
  • Publication number: 20240158678
    Abstract: Provided is a hot-melt adhesive composition improving workability and productivity, and having excellent adhesion to olefin substrates, such as polypropylene, and also excellent adhesion to highly polar substrates, such as PVC and PET, and further having excellent mechanical properties. Provided is a hot-melt adhesive composition comprising an acid-modified polyolefin and a copolymerized polyester, and satisfying the following (1) to (5): (1) the copolymerized polyester comprises a dicarboxylic acid component and a glycol component, and has a melting point (T1), as determined by a differential scanning calorimeter (DSC), in the range of 80 to 150° C.; (2) the acid-modified polyolefin has a melting point (T2), as determined by a differential scanning calorimeter (DSC), in the range of 60 to 150° C.; (3) |T1?T2|?40° C.; (4) when an acid value of the acid-modified polyolefin is defined as AV (eq/ton), and a hydroxy value of the copolymerized polyester is defined as OHV (eq/ton), 0.5?AV/OHV?4.
    Type: Application
    Filed: March 16, 2022
    Publication date: May 16, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Yoji YAMASHITA, Kenji KASHIHARA, Motoki FUJIMOTO
  • Publication number: 20240158967
    Abstract: An object of the present invention is to provide a three-dimensional network structure which has high hydrolysis resistance and thus degradation of resin due to moisture in the air is prevented in long-term use. The three-dimensional network structure includes a three-dimensional random loop shaped and bonded structure including a linear continuous fiber, wherein the linear continuous fiber includes a resin composition, and the resin composition includes a polyester-based thermoplastic elastomer and a phosphate glass. The phosphate glass preferably contains P2O5, SiO2, ZnO, and at least one selected from the group consisting of an alkali metal oxide and an alkaline earth metal.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 16, 2024
    Applicant: TOYOBO MC CORPORATION
    Inventors: Keisuke Taniguchi, Shinichi Kobuchi
  • Publication number: 20240158629
    Abstract: A polyester resin composition including: 30 to 55 parts by mass of a polybutylene terephthalate resin (A), 8 to 38 parts by mass of a polyethylene terephthalate resin (B), 3 to 20 parts by mass of a copolymerized polyester resin (C), 0 to 8 parts by mass of a polycarbonate-based resin (D), and 4 to 23 parts by mass of a carbon fiber-based reinforcement (E), and 0 to 2 parts by mass of an transesterification inhibitor (F) with respect to 100 parts by mass of a total amount of (A), (B), (C), (D), and (E), wherein (C) is a copolymerized polyethylene terephthalate resin (C1) and/or a copolymerized polybutylene terephthalate resin (C2). The polyester resin composition has a flexural modulus of 5.8 GPa or more, and a molded article formed of the polyester resin composition is highly rigid, has reduced defects, and may be decorated by hot-stamping.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 16, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Kaori FURUKAWA, Takahiro SHIMIZU
  • Publication number: 20240150229
    Abstract: The problem of the present invention is to provide a substrate with high versatility, a method for producing the substrate, and a method for producing a unit cell using the substrate. The problem is solved by providing a substrate comprising a plurality of alkali metal azide spots on a substantially flat surface.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 9, 2024
    Applicants: National Institute of Information and Communications Technology, TOYOBO MC Corporation
    Inventors: Motoaki HARA, Yuichiro YANO, Tetsuya IDO, Hikaru TANAKA, Kazutake HAGIYA, Yasuhiro SATO
  • Publication number: 20240150945
    Abstract: An object of the present invention is to provide a biodegradable three-dimensional network structure having excellent compression durability and high compression recovery after heat compression. The biodegradable three-dimensional network structure includes a linear fiber including a polybutylene adipate terephthalate resin having a weight average molecular weight of 35000 or more, wherein the biodegradable three-dimensional network structure has an apparent density of from 0.005 g/cm3 to 0.30 g/cm3 and a thickness of from 10 mm to 100 mm, and the linear fiber has a fiber diameter of from 0.2 mm to 2.0 mm and a crystalline melting enthalpy of 16 J/g or more.
    Type: Application
    Filed: March 17, 2022
    Publication date: May 9, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Teruyuki TANINAKA, Fumika KAWANO, Daisuke SAKURA, Shinichi KOBUCHI
  • Patent number: 11975974
    Abstract: An activated carbon fiber is obtained by activating: a polyphenylene ether fiber that contains a polyphenylene ether component having a rearrangement structure connected by a bond at an ortho-position in a repeating unit continuously bonded at a para-position; an infusibilized polyphenylene ether fiber obtained by infusibilizing the polyphenylene ether fiber; a flameproofed polyphenylene ether fiber obtained by flameproofing the polyphenylene ether fiber or the infusibilized polyphenylene ether fiber; or a carbon fiber obtained by carbonizing any of the polyphenylene ether fibers.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: May 7, 2024
    Assignee: TOYOBO MC CORPORATION
    Inventors: Takemasa Okada, Akifumi Yasui, Kenta Hojo
  • Patent number: 11975556
    Abstract: The present invention aims to provide a flexographic printing original plate which exhibits improved sustainability of the ability of preventing the plate surface from staining. According to the present invention, there is provided a water-developable flexographic printing original plate including at least a support and a photosensitive resin layer provided on the support, in which the photosensitive resin layer contains a water-dispersible latex, a photopolymerizable unsaturated compound, a photopolymerization initiator, and a silicone compound. When the water-dispersible latex is one or more latex rubbers selected from the group consisting of polybutadiene rubber and poly(nitrile-butadiene) rubber, the silicone compound is a silicone compound having an amino group in the molecule and has a refractive index of 1.44 to 1.60. When the water-dispersible latex is poly(styrene-butadiene) rubber, the silicone compound is a silicone compound having an amino group in the molecule and has a refractive index of 1.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: May 7, 2024
    Assignee: TOYOBO MC CORPORATION
    Inventors: Kazuya Yoshimoto, Jun Hasuike
  • Publication number: 20240124642
    Abstract: It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin composition substantially contains no curing agent, and (iii) the polyester resin (A) includes, as a polyol component constituting the polyester resin (A), a diol (a) having two primary hydroxy groups and having no alicyclic structure, and, furthermore, one or both of a diol (b) having an alicyclic structure, and a diol (c) having one primary hydroxy group and one secondary hydroxy group and having no alicyclic structure.
    Type: Application
    Filed: February 3, 2022
    Publication date: April 18, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
  • Publication number: 20240123406
    Abstract: The present concentration device includes a membrane module having a first and a second flow paths that are separated by a semipermeable membrane, the module including a U-shaped tube in which the semipermeable membrane is disposed, a first flow-path-inlet and a first flow-path-outlet connection parts, and a second flow-path-inlet and a second flow-path-outlet connection parts, the device including an introducing unit for introducing a subject solution with a predetermined pressure into the first flow path from the first flow-path-inlet connection part, separating the subject solution into a concentrate and a permeate through the semipermeable membrane, passing the permeate through the second flow path, draining the concentrate from the first flow-path-outlet connection part, introducing the subject solution with a pressure lower than the predetermined pressure into the second flow path from the second flow-path-inlet connection part, and draining a diluent diluted with the permeate, from the second flow-path
    Type: Application
    Filed: February 21, 2022
    Publication date: April 18, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Daiki Kohno, Yoji Abe, Takahito Nakao, Shohei Goda
  • Publication number: 20240117107
    Abstract: An object of the present invention is to provide a polyester resin excellent in moldability, surface smoothness, transparency, mechanical characteristics, and heat-resistance, with reduced generation of gel. The present invention relates to a polyester resin comprising a constituent moiety derived from dicarboxylic acid component and a constituent moiety derived from alcohol component, wherein a content of a compound represented by Formula (I) is 0.0002 to 5.9% by weight in 100% by weight of the alcohol component. In the Formula (I), m and n each represent 1 to 1000, 1 represents 0 to 1000, R1 represents an aromatic hydrocarbon group having 6 to 20 carbon atoms, and R2, R3, and R4 each represent a hydrogen atom or an alkyl group having 1 to 10 carbon atoms.
    Type: Application
    Filed: December 13, 2021
    Publication date: April 11, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hironao SASAKI, Keiichiro TOGAWA, Hiroaki FUKUSHIMA
  • Publication number: 20240110005
    Abstract: It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin composition substantially contains no curing agent, and (iii) a content of tetrahydrofuran-insoluble matter is 10 mass % or more when the polyester resin composition has been heated at 240° C. for one hour.
    Type: Application
    Filed: February 3, 2022
    Publication date: April 4, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
  • Patent number: 11944939
    Abstract: A hollow fiber membrane element, comprising: a core tube comprising a side face having a plurality of pores; and a hollow fiber membrane group consisting of a plurality of hollow fiber membranes disposed around the core tube, the hollow fiber membrane element being a both open-ended type hollow fiber membrane element in which both ends of the core tube and the plurality of hollow fiber membranes are open. The hollow fiber membrane group includes a first hollow fiber membrane layer composed of a plurality of first hollow fiber membranes disposed so as to surround the core tube and a second hollow fiber membrane layer composed of a plurality of second hollow fiber membranes disposed so as to surround the first hollow fiber membrane layer, and a permeability coefficient of the plurality of first hollow fiber membranes is smaller than a permeability coefficient of the plurality of second hollow fiber membranes.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: April 2, 2024
    Assignee: TOYOBO MC CORPORATION
    Inventors: Takahito Nakao, Hidehiko Sakurai
  • Publication number: 20240101814
    Abstract: The present invention aims to provide a thermoplastic polyester elastomer resin composition capable of providing a molded product having good appearance and really excellent abrasion resistance.
    Type: Application
    Filed: December 16, 2021
    Publication date: March 28, 2024
    Applicant: TOYOBO MC Corporation
    Inventor: Ayano NAKASHIMA
  • Publication number: 20240101429
    Abstract: An activated carbon fiber is obtained by activating: a polyphenylene ether fiber that contains a polyphenylene ether component having a rearrangement structure connected by a bond at an ortho-position in a repeating unit continuously bonded at a para-position; an infusibilized polyphenylene ether fiber obtained by infusibilizing the polyphenylene ether fiber; a flameproofed polyphenylene ether fiber obtained by flameproofing the polyphenylene ether fiber or the infusibilized polyphenylene ether fiber; or a carbon fiber obtained by carbonizing any of the polyphenylene ether fibers.
    Type: Application
    Filed: March 10, 2022
    Publication date: March 28, 2024
    Applicant: TOYOBO MC CORPORATION
    Inventors: Takemasa Okada, Akifumi Yasui, Kenta Hojo
  • Patent number: 11940735
    Abstract: A developer composition for a water-developable photosensitive flexographic printing original plate is disclosed, containing (a) a nonionic surfactant composed of monoalkyl ether and/or monoalkyl ester of polyethylene glycol, wherein a number of carbon atoms of the alkyl group therein is 8 to 19, and wherein an HLB value thereof is 11 to 16; and (b) one or more anionic surfactants selected from the group consisting of oleic acid metal salt, lauric acid metal salt, dodecylbenzene sulfonic acid metal salt and lauryl sulfate metal salt, wherein a content ratio of (a):(b) is 25:75 to 75:25 (mass ratio), and wherein a brushing friction coefficient on a surface of a printing original plate is 0.60 to 0.75[?], when measured in an aqueous developer containing 1% by mass of the developer composition and 99% by mass of water.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 26, 2024
    Assignee: TOYOBO MC CORPORATION
    Inventor: Hiroto Yamada