Patents Assigned to Nippon Surfactant Industries Co., Ltd.
  • Oil-in-water emulsion cosmetic
    Patent number: 11529294
    Abstract: An oil-in-water emulsion cosmetic containing (A) to (E) as essential components and having a pH of 6 or less: (A) an L-ascorbyl tetra fatty acid ester derivative represented by the following general formula (I) Formula 1 wherein R represents a branched alkyl fatty acid residue having 8 to 18 carbons; (B) a polar oil which is liquid at 25° C. and having an IOB value of 0.1 to 0.5; (C) a chelating agent; (D) an antioxidant; and (E) water.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: December 20, 2022
    Assignees: Nikko Chemicals Co., Ltd., Nippon Surfactant Industries Co., Ltd., Cosmos Technical Center Co., Ltd.
    Inventors: Keiko Murakoso, Sayaka Tanaka