Patents by Inventor Toshiki Kawabata

Toshiki Kawabata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11613639
    Abstract: The present invention provides a polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 1 to 50 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m and 5 to 18 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin, wherein a Charpy impact strength at 0° C. is 20 kJ/m2 or more, and a Vicat softening temperature is 85° C. or higher, and a method for manufacturing the polyvinyl chloride-based resin molded product.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 28, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Toshiki Kawabata
  • Patent number: 11180647
    Abstract: The present invention provides a polyvinyl chloride-based rigid molded product containing 10 to 40 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m per 100 parts by weight of a polyvinyl chloride-based resin having an average polymerization degree of 500 to 1,500, wherein a variation coefficient of the number of calcium carbonate particles in partitioning analysis of a cross section of the molded product is 15% or less, and a method for manufacturing the same.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 23, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Yoshihito Sasada, Toshiki Kawabata, Junichi Kawashima, Osamu Matsumoto
  • Patent number: 10717860
    Abstract: The present invention provides a polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 3 to 15 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m and 2 to 4 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin, wherein a Charpy impact strength at 23° C. is 20 kJ/m2 or more, and a weight reduction ratio is 1.5 mg/cm2 or less when the molded product is immersed in a 93% by weight sulfuric acid aqueous solution for 14 days in accordance with JIS K 6745, and a method for manufacturing the polyvinyl chloride-based resin molded product.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: July 21, 2020
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Toshiki Kawabata
  • Publication number: 20190112463
    Abstract: The present invention provides a polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 3 to 15 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m and 2 to 4 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin, wherein a Charpy impact strength at 23° C. is 20 kJ/m2 or more, and a weight reduction ratio is 1.5 mg/cm2 or less when the molded product is immersed in a 93% by weight sulfuric acid aqueous solution for 14 days in accordance with JIS K 6745, and a method for manufacturing the polyvinyl chloride-based resin molded product.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 18, 2019
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Toshiki Kawabata
  • Publication number: 20190112464
    Abstract: The present invention provides a polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 1 to 50 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m and 5 to 18 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin, wherein a Charpy impact strength at 0° C. is 20 kJ/m2 or more, and a Vicat softening temperature is 85° C. or higher, and a method for manufacturing the polyvinyl chloride-based resin molded product.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 18, 2019
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Toshiki Kawabata
  • Publication number: 20190062543
    Abstract: The present invention provides a polyvinyl chloride-based rigid molded product containing 10 to 40 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m per 100 parts by weight of a polyvinyl chloride-based resin having an average polymerization degree of 500 to 1,500, wherein a variation coefficient of the number of calcium carbonate particles in partitioning analysis of a cross section of the molded product is 15% or less, and a method for manufacturing the same.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 28, 2019
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihito Sasada, Toshiki Kawabata, Junichi Kawashima, Osamu Matsumoto