Patents Assigned to Maruyoshi Chemical Co., Ltd
  • Process for producing aqueous emulsion
    Patent number: 7691935
    Abstract: A process for producing an aqueous emulsion of a polyolefin having a weight-average molecular weight of 20,000 or higher, characterized in that a styrene/maleic anhydride copolymer or/and an ester of a styrene/maleic acid copolymer is used as a polymer dispersant.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: April 6, 2010
    Assignee: Maruyoshi Chemical Co., Ltd
    Inventor: Iwao Sakamoto