Patents by Inventor Yukari KANDA

Yukari KANDA 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).

  • Method for producing mixture
    Patent number: 10428187
    Abstract: Provided is a method for producing a mixture, comprising a mixing step for mixing a slurry prepared by dispersing a filler containing carbon black and a rubber liquid prepared by dispersing or the like a rubber component. In the above producing method, the carbon black contained in the slurry has a surface average acidic functional group amount (?eq/m2) of 0.40 or more and less than 3.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: October 1, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Yasuto Yanagisawa, Yukari Kanda, Shigenobu Waragai, Osamaru Matsuo
  • METHOD FOR PRODUCING MIXTURE
    Publication number: 20180079873
    Abstract: Provided is a method for producing a mixture, comprising a mixing step for mixing a slurry prepared by dispersing a filler containing carbon black and a rubber liquid prepared by dispersing or the like a rubber component. In the above producing method, the carbon black contained in the slurry has a surface average acidic functional group amount (?eq/m2) of 0.40 or more and less than 3.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 22, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasuto YANAGISAWA, Yukari KANDA, Shigenobu WARAGAI, Osamaru MATSUO
  • Process for producing wet masterbatch, and wet masterbatch produced by said process
    Patent number: 9796819
    Abstract: Provided is a process for producing a wet masterbatch which, without deteriorating a reinforcing property of a rubber composition and rubber physical properties, micronizes a filler slurry by controlling an amount of functional groups on a filler surface, and improves filler dispersibility in the rubber wet masterbatch and the rubber composition. The process for producing a wet masterbatch comprises: a step of producing a slurry solution having a pH of 8 or more by dispersing carbon black having an average amount of surface acidic functional groups (?eq/m2) of 0.15 or more and less than 3.00; a step of producing a mixture by mixing the slurry solution and a rubber latex solution in a liquid phase; and a step of drying the mixture.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: October 24, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Fumiteru Nishiura, Yukari Kanda, Kazuaki Someno
  • PROCESS FOR PRODUCING WET MASTERBATCH, AND WET MASTERBATCH PRODUCED BY SAID PROCESS
    Publication number: 20170073477
    Abstract: Provided is a process for producing a wet masterbatch which, without deteriorating a reinforcing property of a rubber composition and rubber physical properties, micronizes a filler slurry by controlling an amount of functional groups on a filler surface, and improves filler dispersibility in the rubber wet masterbatch and the rubber composition. The process for producing a wet masterbatch comprises: a step of producing a slurry solution having a pH of 8 or more by dispersing carbon black having an average amount of surface acidic functional groups (?eq/m2) of 0.15 or more and less than 3.00; a step of producing a mixture by mixing the slurry solution and a rubber latex solution in a liquid phase; and a step of drying the mixture.
    Type: Application
    Filed: April 3, 2015
    Publication date: March 16, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Fumiteru NISHIURA, Yukari KANDA, Kazuaki SOMENO