Patents Assigned to Tokuyama Sekisui Co., Ltd.
  • Patent number: 11866574
    Abstract: The present invention provides a resin composition for molding that can provide a molded body having excellent thermal stability, high impact resistance, and high surface smoothness. The present invention also provides a molded body including the resin composition for molding. Provided is a resin composition for molding including: a chlorinated polyvinyl chloride; an acrylic processing aid; and an impact resistance modifier, the acrylic processing aid containing an acrylic resin having a weight average molecular weight of 500,000 to 5,000,000, the resin composition containing the acrylic processing aid in an amount of 0.2 to 10 parts by mass and the impact resistance modifier in an amount of 0.5 to 8.0 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 9, 2024
    Assignees: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Hiroshi Taniguchi, Tsukasa Gotou
  • Patent number: 11692091
    Abstract: The present invention provides a resin composition for injection molding that can provide a molded body having excellent thermal stability, excellent thermal fluidity, and high water pressure resistance without a heavy metal such as lead or tin. The present invention also provides a molded body including the resin composition for injection molding. Provided is a resin composition for injection molding containing: a chlorinated polyvinyl chloride; polyvinyl chloride; and a thermal stabilizer, the thermal stabilizer containing a calcium alkyl carboxylate and a zinc compound, the polyvinyl chloride having a degree of polymerization of 400 to 1,000, the resin composition containing the polyvinyl chloride in an amount of 1 to 30 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: July 4, 2023
    Assignees: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Hiroshi Taniguchi, Norikazu Mashino, Tsukasa Gotou, Hiroaki Mochizuki
  • Publication number: 20230158505
    Abstract: A specimen collection container is provided, the specimen collection container being capable of suppressing a change in a mixing ratio of a specimen collected to a liquid contained even when a long period of time has elapsed after manufacturing. A specimen collection container according to the present invention is a specimen collection container into which a specimen is collected, the specimen collection container including: a container main body having an opening; a plug attached to the opening; a barrier film disposed on an outer surface of the container main body; and a liquid contained in the container main body, the barrier film having a water vapor transmission rate at 40° C. and 90% RH of 0.8 g/(m2·day) or less.
    Type: Application
    Filed: March 23, 2021
    Publication date: May 25, 2023
    Applicants: SEKISUI MEDICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Takaya UCHIYAMA, Kuniya KOMAI, Masatoshi NIUNOYA, Yuuki GOTOU, Hironobu ISOGAWA
  • Publication number: 20230133626
    Abstract: Provided is a storage container for cell-containing solutions, which makes it possible to enhance the storage stability of cfDNA contained in a cell-containing solution even when the cell-containing solution is stored under a room temperature environment. The storage container for cell-containing solutions according to the present invention is intended to be used for storing a predetermined amount of a cell-containing solution, the storage container being provided with a container main body and a preservative solution contained in the container main body, in which the storage container has a first configuration such that the preservative solution contains a cell-membrane-permeable compound that has a molecular weight of 100 or less and cannot be frozen at 0° C.
    Type: Application
    Filed: March 3, 2021
    Publication date: May 4, 2023
    Applicants: SEKISUI MEDICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Yuuki GOTOU, Hironobu ISOGAWA, Takaya UCHIYAMA, Tomonori INOUE
  • Publication number: 20230090675
    Abstract: Provided is a blood collection container with which a specimen with a high leukocyte recovery rate and a small amount of contaminating erythrocytes can be obtained. A blood collection container according to the present invention is a blood collection container by which a predetermined amount of blood is collected, the blood collection container including: a blood collection container main body; and a hemocyte separation material contained in the blood collection container main body, the hemocyte separation material having a specific gravity at 25° C. of 1.075 or more and 1.
    Type: Application
    Filed: March 11, 2021
    Publication date: March 23, 2023
    Applicants: SEKISUI MEDICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Kuniya KOMAI, Hironobu ISOGAWA
  • Publication number: 20230050815
    Abstract: Provide is a blood collection container capable of suppressing the occurrence of blood clots involving bubbles when blood containing heparin is coagulated, and capable of suppressing the production of fibrin in serum after separation when blood containing heparin is separated into serum and blood clots. A blood collection container according to the present invention includes: a blood collection container main body having an opening at one end thereof and a closed bottom at the other end thereof; a serine protease disposed in the blood collection container main body; and a heparin neutralizing agent disposed in the blood collection container main body, wherein when a region in which the serine protease is disposed is defined as a first region, and a region in which the heparin neutralizing agent is disposed is defined as a second region, the second region includes a region present on an other end side with respect to an end on the other end side of the first region.
    Type: Application
    Filed: November 30, 2020
    Publication date: February 16, 2023
    Applicants: SEKISUI MEDICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Yuji SETOGUCHI, Hironobu ISOGAWA
  • Publication number: 20220386913
    Abstract: There is provided a blood collection container capable of suppressing the contamination of white blood cells into blood plasma. A blood collection container according to the present invention is a blood collection container into which a predetermined amount of blood is collected. The blood collection container includes a blood collection container main body, and a blood plasma separation material, an osmotic pressure regulator, and an anticoagulant contained in the blood collection container main body. The specific gravity of the blood plasma separation material at 25° C. is 1.030 or more and 1.120 or less. When the osmotic pressure regulator and the anticoagulant contained in the blood collection container main body are dissolved in an amount of physiological saline solution equivalent to a predetermined amount of blood collected in the blood collection container to obtain an osmotic pressure measurement solution, the specific gravity of the blood plasma separation material at 25° C.
    Type: Application
    Filed: December 2, 2020
    Publication date: December 8, 2022
    Applicants: SEKISUI MEDICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD
    Inventor: Kuniya KOMAI
  • Publication number: 20220226752
    Abstract: Provided is a composition for mononuclear cell-containing plasma separation capable of suppressing a flow of the composition for mononuclear cell-containing plasma separation during storage, capable of satisfactorily forming a partition during centrifugation, and capable of yielding mononuclear cell-containing plasma with little admixture of blood cell components other than mononuclear cells. The composition for mononuclear cell-containing plasma separation according to the present invention contains an organic component having fluidity at 25° C. and two or more kinds of inorganic fine powders, and has a specific gravity of 1.060 or more and 1.080 or less at 25° C.
    Type: Application
    Filed: May 19, 2020
    Publication date: July 21, 2022
    Applicants: SEKISUI MEDICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD
    Inventors: Kuniya KOMAI, Hironobu ISOGAWA, Hideo ANRAKU
  • Publication number: 20220177690
    Abstract: The present invention provides a resin composition for molding capable of producing a molded article that has excellent heat distortion resistance, excellent mechanical properties, high impact resistance, and high transparency and has a smaller change in weight at high temperature. The present invention also provides a molded article and a joint each produced from the resin composition for molding.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 9, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Tomohiro HORINOUCHI, Hiroshi TANIGUCHI
  • Publication number: 20220177615
    Abstract: The present invention provides a chlorinated polyvinyl chloride that enables excellent continuous productivity in molding and that enables a molded article to have both processability and unevenness-preventing properties. Provided is a chlorinated polyvinyl chloride having an endothermic peak start temperature (L) and an endothermic peak end temperature (H) that satisfy the following expression (1) in endothermic peak measurement using a differential scanning calorimeter (DSC): 41° C.?H?L?98° C. (1).
    Type: Application
    Filed: March 27, 2020
    Publication date: June 9, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Norikazu MASHINO, Masatoshi HARADA, Masazumi OKUDO
  • Publication number: 20220153983
    Abstract: The present invention provides a chlorinated polyvinyl chloride resin that has resistance to thermal decomposition, provides excellent continuous productivity in molding, and imparts both processability and unevenness-preventing properties to a molded article. The present invention relates to a chlorinated polyvinyl chloride resin, containing three components including a A150 component, a B150 component, and a C150 component, and having a percentage of the C150 component (C150 component/(A150 component+B150 component+C150 component)) of less than 8.0%, the three components being identified by measuring the chlorinated polyvinyl chloride resin by a solid echo method using pulse NMR at 150° C. to give a free induction decay curve of 1H spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into three curves derived from the A150 component, the B150 component, and the C150 component in order of shorter relaxation time using the least square method.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 19, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Kenichi MATSUMURA, Norikazu MASHINO, Kento MURAKAMI, Nami NAKAJIMA, Yasunari KUSAKA, Takehisa SUGAYA, Masahiko YAMAGATA
  • Publication number: 20220144979
    Abstract: The present invention provides a chlorinated polyvinyl chloride resin that enables excellent continuous productivity in molding and that enables a molded article to have both processability and unevenness-preventing properties. Provided is a chlorinated polyvinyl chloride resin having, in Raman measurement by Raman spectroscopy, an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cm?1 to a peak intensity B observed in a range of 600 to 650 cm?1 of 0.50 to 2.00, and a standard deviation of the A/B of 0.090 or less.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 12, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Norikazu MASHINO, Kento MURAKAMI, Isao HIGUCHI, Yasunari KUSAKA, Takashi MURAMOTO
  • Publication number: 20220145061
    Abstract: The present invention provides a chlorinated polyvinyl chloride resin that not only has high heat resistance and high mechanical strength but also is excellent in molding processability and is very easy to soften and additionally enables production of a molded article with high gloss. The present invention relates to a chlorinated polyvinyl chloride resin, containing three components including a A150 component, a B150 component, and a C150 component, and having a percentage of the C150 component (C150 component/(A150 component+B150 component+C150 component)) of 8.0% or more and 30.0% or less, the three components being identified by measuring the chlorinated polyvinyl chloride resin by a solid echo method using pulse NMR at 150° C.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 12, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Kenichi MATSUMURA, Norikazu MASHINO, Kento MURAKAMI, Nami NAKAJIMA, Yasunari KUSAKA, Takehisa SUGAYA, Masahiko YAMAGATA
  • Publication number: 20220135783
    Abstract: The present invention provides a chlorinated polyvinyl chloride resin that enables a molded article to have both processability and unevenness-preventing properties and also high gloss. Provided is a chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cm?1 to a peak intensity B observed in a range of 600 to 650 cm1 of 0.50 to 2.00 in Raman imaging measurement by Raman spectroscopy, and having a standard deviation of the ratio (A/B) of the peak intensity A to the peak intensity B of 0.100 to 0.200 in Raman measurement by Raman spectroscopy.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 5, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Kento MURAKAMI, Norikazu MASHINO, Isao HIGUCHI, Yasunari KUSAKA
  • Publication number: 20220133961
    Abstract: Provided is a clot adhesion preventing agent capable of suppressing adhesion of clot to the inner wall surface of a blood collection container. The clot adhesion preventing agent according to the present invention includes a polyether compound or a silicone oil, and an amino acid.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 5, 2022
    Applicants: SEKISUI MEDICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventor: Kuniya KOMAI
  • Publication number: 20220127390
    Abstract: The present invention provides a chlorinated polyvinyl chloride resin that enables excellent continuous productivity in molding and that enables a molded article to have both processability and unevenness-preventing properties. Provided is a chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cm?1 to a peak intensity B observed in a range of 600 to 650 cm?1 of 0.50 to 2.00 in Raman imaging measurement by Raman spectroscopy.
    Type: Application
    Filed: March 27, 2020
    Publication date: April 28, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Kento MURAKAMI, Norikazu MASHINO, Isao HIGUCHI, Yasunari KUSAKA
  • Publication number: 20220119614
    Abstract: The present invention provides a thermally expandable microcapsule having excellent heat resistance and high expansion ratio and enabling production of a light, high-hardness molded article having excellent physical properties (abrasion resistance), and a composition for foam molding containing the thermally expandable microcapsule. Provided is a thermally expandable microcapsule including: a shell containing a polymer; and a volatile expansion agent as a core agent encapsulated by the shell, the shell containing silicon dioxide and a polymer obtained by polymerizing a monomer composition containing a carbonyl group-containing monomer, the thermally expandable microcapsule having a ratio of a peak intensity based on a C?O bond in the shell to a peak intensity based on the silicon dioxide in the shell (peak intensity based on C?O bond/peak intensity based on silicon dioxide) of 0.25 to 1.
    Type: Application
    Filed: January 24, 2020
    Publication date: April 21, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Yasuhiro KAWAGUCHI, Takeru KAWAKAMI, Shun SATOU
  • Publication number: 20210371639
    Abstract: The present invention provides a chlorinated vinyl chloride resin composition for a window frame having excellent properties including moldability, heat resistance, and impact resistance and capable of preventing or reducing deformation such as warpage or damage even after exposure to sunlight for a long time. Provided is a chlorinated vinyl chloride resin composition for a window frame, containing a chlorinated vinyl chloride resin and an infrared reflective pigment.
    Type: Application
    Filed: September 26, 2019
    Publication date: December 2, 2021
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Kei YOSHIYAMA, Hiroshi TANIGUCHI
  • Patent number: 11174381
    Abstract: The present invention provides a resin composition for molding that can provide a molded body having excellent heat resistance and excellent mechanical properties as well as high surface smoothness. The present invention also provides a molded body and a pipe each including the resin composition for molding. Provided is a resin composition for molding containing: a chlorinated polyvinyl chloride; a thermal stabilizer; and an impact resistance modifier, the chlorinated polyvinyl chloride having a chlorine content of 63 to 72% by mass, the thermal stabilizer containing a calcium-containing compound and a zinc-containing compound, the resin composition containing the thermal stabilizer in an amount of 0.4 to 10.0 parts by mass and the impact resistance modifier in an amount of 1.0 to 10.0 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 16, 2021
    Assignees: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Hiroshi Taniguchi, Hiroaki Mochizuki
  • Publication number: 20200199342
    Abstract: The present invention provides a resin composition for injection molding that can provide a molded body having excellent thermal stability, excellent thermal fluidity, and high water pressure resistance without a heavy metal such as lead or tin. The present invention also provides a molded body including the resin composition for injection molding. Provided is a resin composition for injection molding containing: a chlorinated polyvinyl chloride; polyvinyl chloride; and a thermal stabilizer, the thermal stabilizer containing a calcium alkyl carboxylate and a zinc compound, the polyvinyl chloride having a degree of polymerization of 400 to 1,000, the resin composition containing the polyvinyl chloride in an amount of 1 to 30 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.
    Type: Application
    Filed: September 26, 2018
    Publication date: June 25, 2020
    Applicants: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Hiroshi TANIGUCHI, Norikazu MASHINO, Tsukasa GOTOU, Hiroaki MOCHIZUKI