Patents Assigned to TAJIMA ROOFING INC.
  • Publication number: 20210115679
    Abstract: This disclosure relates to vinyl composition tile that does not use phthalate or terephthalate, has many color variations with a limited number of pigments, and has clear pattern. A vinyl composition tile, comprising 100 parts by mass of a vinyl chloride resin, 400 to 600 parts by mass of calcium carbonate, and 20 to 40 parts by mass of a fatty acid alkyl ester plasticizer. A method for manufacturing vinyl composition tile, comprising the successive steps of obtaining melt mixture by heating 100 parts by mass of vinyl chloride resin and 400-600 parts by mass of calcium carbonate with 20-40 parts by mass of fatty alkyl ester plasticizer, milling the mixture to obtain plates, and punching out the plates to obtain vinyl composition tiles.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 22, 2021
    Applicant: TAJIMA ROOFING INC.
    Inventors: Shuichi ISAZAWA, Hiroyo KONISHI, Yasuhisa YAMADA, Naosuke FUSE