Title:
MANUFACTURE OF POLYACRYLATE COPOLYMER AQUEOUS DISPERSION ANDUSE
Document Type and Number:
Japanese Patent JPS60141709
Kind Code:
A
Abstract:
1. A process for the preparation of an aqueous polyacrylate copolymer dispersion having a solids content of from 19.2 to 40% by weight, wherein from 90 to 98% by weight of one or more (meth) acrylates of alcohols of 1 to 8 carbon atoms and from 2 to 10% by weight of an alpha,beta-monoolefinically unsaturated monocarboxylic acid of 3 to 5 carbon atoms and/or its amide, with or without from 10 to 25% by weight of a monomer from the group consisting of styrene, acrylonitrile, vinyl acetate and vinyl chloride, are polymerized in water in the presence of from 1 to 10% by weight, based in each case on the total weight of the monomers, of one or more anionic emulsifiers, using from 0.1 to 1.5% by weight of hydrogen peroxide and from 0.01 to 0.6% by weight of ascorbic acid, and in the presence or absence of from 0.001 to 0.01% by weight of iron (II) sulfate, at from 60 to 85 degrees C and a pH of from 2 to 5, the particle sizes obtained being from 10 to 50 nm.
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Inventors:
EERITSUHI PENTSUERU
GIYUNTAA ETSUKERUTO
GIYUNTAA ETSUKERUTO
Application Number:
JP25769684A
Publication Date:
July 26, 1985
Filing Date:
December 07, 1984
Export Citation:
Assignee:
BASF AG
International Classes:
C08F2/00; C08F2/18; C08F2/20; C08F2/22; C08F20/00; C08F20/10; C08F220/00; C08F220/10; C08F220/12; C08F220/14; C08F220/18; C14C11/00; (IPC1-7): C08F2/20; C08F212/10; C08F214/06; C08F218/08; C08F220/14; C08F220/18
Attorney, Agent or Firm:
Toshio Yano (2 outside)