Patents by Inventor Takeaki Abe

Takeaki Abe 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 preparing acrylate polymers
    Patent number: 3943190
    Abstract: A process for preparing arcylate polymers comprising subjecting to suspension-polymerization a system (I) comprising an alkyl ester of methacrylic acid, said system (I) optionally containing an alkyl ester of acrylic acid and other vinyl monomer copolymerizable with said esters, to obtain a suspension containing polymer beads; and adding to the resulting suspension an aqueous suspension of a system (II) comprising an alkyl ester of acrylic acid and a cross-linking monomer, said system (II) optionally containing an alkyl ester of methacrylic acid and being employed in an amount of 20 to 70 parts by weight per 100 parts by weight of said system (I), under agitation at a temperature allowing substantial advance of polymerization to effect a final polymerization.
    Type: Grant
    Filed: July 30, 1974
    Date of Patent: March 9, 1976
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takeaki Abe, Masaharu Horikawa, Jiro Kurita