Patents by Inventor Nobuo Morishita

Nobuo Morishita 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).

  • Process for carboxylation of ethylene-vinyl acetate copolymers
    Patent number: 4157362
    Abstract: Ethylene-vinyl acetate copolymers are carboxylated by copolymerizing an alpha, beta-unsaturated carboxylic acid and/or anhydride thereof with at least one vinylidene monomer having the formula: ##STR1## wherein X and Y can be the same or different, and each represents hydrogen, chlorine, alkyl, acetoxy, carboxylic acid ester group or cyano; with an ethylene-vinyl acetate copolymer in the presence of a polymerization initiator in a reaction medium of a ketone compound or a mixture of a ketone compound and an acetic acid ester, wherein the reaction is conducted in a heterogeneous state.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: June 5, 1979
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Nobuo Morishita, Mitsutaka Saito
  • Process for carboxylation of ethylene-vinyl acetate copolymers or saponified copolymers
    Patent number: 4102946
    Abstract: Ethylene-vinyl acetate copolymers or saponified copolymers are carboxylated by copolymerizing an alpha, beta-unsaturated carboxylic acid and/or anhydride thereof with or without at least one vinylidene monomer having the formula: ##STR1## wherein X and Y can be the same or different, and each represents hydrogen, chlorine, alkyl, acetoxy, carboxylic acid ester group or cyano; with an ethylene-vinyl acetate copolymer or a saponified copolymer thereof in the presence of a polymerization initiator in a reaction medium of an acetic acid ester or a mixture of an acetic acid ester and a lower alcohol, wherein the reaction is conducted in a heterogeneous state.
    Type: Grant
    Filed: January 4, 1977
    Date of Patent: July 25, 1978
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Shinichi Imura, Mitsutaka Saito, Nobuo Morishita