[EN] AMPHOTERIC POLYMER PARTICLES AND COMPOSITIONS THEREOF<br/>[FR] PARTICULES POLYMÈRES AMPHOTÈRES ET LEURS COMPOSITIONS
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2014093412A1
公开(公告)日:2014-06-19
The present invention relates to a stable aqueous dispersion of multiphase amphoteric polymer particles comprising a crosslinked polymer phase comprising structural units of a phosphorus acid monomer, a carboxylic acid monomer, a multiethylenically unsaturated monomer, and an ethylenically unsaturated nonionic monomer; and a second polymer phase comprising a carboxylic acid monomer and an ethylenically unsaturated nonionic monomer. The present invention also relates to composites of the particles and pigment particles such as TiO2. The composition is useful for preparing dried coatings with improved hiding.