Title:
CONTINUOUS AND MODULAR METHOD FOR PRODUCING WATER-REDISPERSIBLE POLYMER POWDER COMPOSITIONS
Document Type and Number:
WIPO Patent Application WO/2018/113955
Kind Code:
A8
Abstract:
The invention relates to a method for producing polymer powder compositions which are redispersible in water and which are based on polymerisates of one or more ethylenically unsaturated monomers. In a first step, an aqueous polymerisate dispersion is produced by means of a radically initiated polymerization of one or more ethylenically unsaturated monomers in an aqueous medium, said polymerisate dispersion being converted into the polymer powder composition which is redispersible in water by means of a drying process. The invention is characterized in that the polymerization and the drying process are each carried out in a continuous manner, and the polymerization and the drying process are carried out in separate interconnected modules.
Inventors:
ECKL BERNHARD (DE)
KALCHAUER MICHAEL (DE)
SEIDEL JESSICA (DE)
WEITZEL HANS-PETER (DE)
KALCHAUER MICHAEL (DE)
SEIDEL JESSICA (DE)
WEITZEL HANS-PETER (DE)
Application Number:
PCT/EP2016/082191
Publication Date:
May 09, 2019
Filing Date:
December 21, 2016
Export Citation:
Assignee:
WACKER CHEMIE AG (DE)
International Classes:
C08F2/22; C08J3/12
Attorney, Agent or Firm:
SCHUDERER, Michael et al. (DE)
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