Patents by Inventor Tomomi Satou

Tomomi Satou 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).

  • Polyfunctional peroxides, vinyl monomer polymerization initiators comprising the same and process for polymerization vinyl monomers employing the same
    Patent number: 6111042
    Abstract: The novel polyfunctional peroxides are compounds represented by the following general formula (1):R.sup.1 -CX.sub.3 ( 1)wherein R.sup.1 represents a linear alkyl group having 1 to 3 carbon atoms; and X represents a group: ##STR1## (wherein R.sup.2 represents a linear or branched alkyl group having 1 to 5 carbon atoms). Such polyfunctional peroxides include 1,1,1-tris(t-butylperoxycarbonyloxymethyl)propane and the like. The polymerization initiators for vinyl monomers comprise such polyfunctional peroxides. In the process for polymerizing vinyl monomers, a vinyl monomer is polymerized employing such polyfunctional peroxide at 60 to 160.degree. C.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: August 29, 2000
    Assignee: NOF Corporation
    Inventors: Hideyo Ishigaki, Yasumasa Watanabe, Tomomi Satou
  • Polyfunctional peroxides, vinyl monomer polymerization initiators comprising the same and process for polymerizing vinyl monomers employing the same
    Patent number: 5973181
    Abstract: The novel polyfunctional peroxides are compounds represented by the following general formula (1):R.sup.1 --CX.sub.3 (1)wherein R.sup.1 represents a linear alkyl group having 1 to 3 carbon atoms; and X represents a group: ##STR1## (wherein R.sup.2 represents a linear or branched alkyl group having 1 to 5 carbon atoms).Such polyfunctional peroxides include 1,1,1-tris(t-butylperoxycarbonyloxymethyl)propane and the like. The polymerization initiators for vinyl monomers comprise such polyfunctional peroxides. In the process for polymerizing vinyl monomers, a vinyl monomer is polymerized employing such polyfunctional peroxide at 60 to 160.degree. C.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: October 26, 1999
    Inventors: Hideyo Ishigaki, Yasumasa Watanabe, Tomomi Satou