Patents by Inventor Kazuki MARUMO

Kazuki MARUMO 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).

  • ACRYLATE-BASED COPOLYMER, METHOD FOR PRODUCING SAID COPOLYMER, FRICTION REDUCER USING SAID COPOLYMER, AND LUBRICATING COMPOSITION CONTAINING SAID FRICTION REDUCER
    Publication number: 20220251266
    Abstract: The present invention provides an acrylate-based copolymer obtained by polymerizing constituent monomers including a polymerizable monomer (a) consisting of an alkyl acrylate-based monomer represented by the following general formula (1) in an amount of from 10 mol % to 95 mol % with respect to a total number of moles of the constituent monomers, a polymerizable monomer (b) consisting of an alkylene glycol acrylate-based monomer represented by the following general formula (2) in an amount of from 5 mol % to 50 mol % with respect to the total number of moles of the constituent monomers, and at least one kind of polymerizable monomer (c) selected from the group consisting of an aromatic vinyl-based monomer (c-1) and a short-chain alkyl acrylate-based monomer (c-2) represented by the following general formula (3) in an amount of from 0 mol % to 60 mol % with respect to the total number of moles of the constituent monomers.
    Type: Application
    Filed: June 2, 2020
    Publication date: August 11, 2022
    Applicant: ADEKA CORPORATION
    Inventors: Kenji YAMAMOTO, Tsuyoshi HIRAMATSU, Shuhei IGARASHI, Kazuki MARUMO