Patents Assigned to UNITIKA TRADING CO., LTD.
  • Publication number: 20230113079
    Abstract: To provide a biaxially stretched polyester resin film that has excellent properties equal to or better than those of biaxially stretched polyester film that does not use recycled raw material, and in particular that has an excellent flexural resistance in low-temperature environments. A biaxially stretched polyester resin film that characteristically satisfies both of the following properties (1) and (2): (1) in differential scanning calorimetry (DSC), after heating from 25° C. to 300° C. at a heating rate of 20° C./minute and holding for 10 minutes at 300° C., the temperature of crystallization during cooling at a cooling rate of 40° C./minute is 160° C. to 180° C.; and (2) the number of pinholes after the execution of 200 repetitive cycles of a flexural fatigue test in a ?10° C. atmosphere using a Gelbo Flex Tester is not more than 10/500 cm2.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 13, 2023
    Applicants: UNITIKA LTD., NIPPON ESTER CO., LTD., UNITIKA TRADING CO., LTD.
    Inventors: Goro Araki, Hiroshi Ashihara, Hazumu Nagano
  • Patent number: 11098442
    Abstract: A water-repellent knitted fabric is a knitted fabric which comprises a multifilament made of a thermoplastic resin and has a water repellent imparted to a surface of the knitted fabric or the multifilament, and satisfies the following conditions (1) to (4): (1) the number of voids between stitches of the knitted fabric is 20 to 40/[12 cm×12 cm], and the voids have a size of 7 to 25 mm2; (2) initial water repellency measured in accordance with a spray method described in JIS L-1092 is at a grade 3 or higher; (3) initial Water drainage is 70% or more; and (4) initial Bursting Strength measured in accordance with a method A described in JIS L-1096 is 200 kPa or more and 500 kPa or less.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: August 24, 2021
    Assignees: finetrack co., ltd., UNITIKA TRADING CO., LTD.
    Inventors: Yotaro Kanayama, Yuko Yagi, Jun Tanaka