Patents by Inventor Masaaki Yokoe

Masaaki Yokoe 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).

  • Polymerizable emulsifying agent and application thereof
    Patent number: 3980622
    Abstract: Compounds having the formula ##EQU1## wherein R is alkyl group having 6 to 22 carbon atoms, M is H, Li, Na, K or NH.sub.4 and n is an integer of 2 to 4, inclusive. The compound is useful as polymerizable emulsifying agent, and enables to improve properties of produced polymer and to provide a modacrylic fiber superior in heat stability and fastness to light. The aqueous emulsion polymerization of .alpha.,.beta.-ethylenically unsaturated monomer by the use of the polymerizable anionic emulsifying agent is capable of preventing a discharge of an environmental pollutant.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: September 14, 1976
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Ko Kozuka, Shigeru Kobayashi, Akira Watanabe, Yoshio Iki, Masaaki Yokoe