Water-redispersible polymer powder

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United States of America Patent

PATENT NO 9062143
APP PUB NO 20120028064A1
SERIAL NO

12804805

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Abstract

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Polymer powders comprising in copolymerized form

    a) one or more vinyl aromatic comonomers,b) one or more 1,3-diene comonomers,c) from 0.1 to 15 percent, based on the total comonomer weight, of one or more comonomers selected from the group consisting of ethylenically unsaturated mono- and dicarboxylic acids and their salts, wherein at least 75 percent of the total number of carboxylic groups present in the polymer are located at the surface of the polymer particles in the powder and at least 75 percent of the carboxylic groups located at the surface of the polymer particles in powder are present in their salt form, andd) from 0 to 40 percent, based on the total comonomer weight, of one or more additional comonomershave an excellent redispersibility in water.

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Patent Owner(s)

Patent OwnerAddress
DOW GLOBAL TECHNOLOGIES LLC2040 DOW CENTER MIDLAND MI 48674

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Casati, Francois M Pfäffikon, CH 68 295
Dombrowski, Jürgen Halle, DE 2 11
Kühn, Harmut Halle, DE 1 3
Lazarus, Etienne Marienthal, FR 7 26
Lohmüller, Gerold Baden-Baden, DE 2 5
Perello, Margarita Duebendorf, CH 19 31

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