Title:
リン含有還元剤を使用するポリカルボン酸の製造方法
Document Type and Number:
Japanese Patent JP2005506360
Kind Code:
A
Abstract:
A method for the production of polycarboxylic acids is provided via the present invention. The novel method herein comprises the steps of i) mixing a phosphorous containing reducing agent with at least one carboxylic acid monomer to form a reaction mixture; ii) adding an equivalent of base to the reaction mixture to provide a partially neutralized reaction mixture; and iii) adding a free radical generator to the partially neutralized reaction mixture under polymerization conditions to form a phospho/carboxylic acid polymer containing solution. Preferred monomers, reducing agents and free radical generators are also disclosed.
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Inventors:
Mark, Robert, Civic
Rob, Richard, Gardner
William, Michael, Shepherd
Rob, Richard, Gardner
William, Michael, Shepherd
Application Number:
JP2003536289A
Publication Date:
March 03, 2005
Filing Date:
October 15, 2002
Export Citation:
Assignee:
THE PROCTER & GAMBLE COMPANY
International Classes:
C07C51/353; C07C55/24; C07F9/30; C07F9/38; C08F20/04; (IPC1-7): C07C51/353; C07C55/24; C07F9/30; C07F9/38
Attorney, Agent or Firm:
Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Yukitaka Nakamura
Konno Akio
Noritaka Yokota