Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-07-31
2007-07-31
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S819000, C524S003000, C524S503000, C523S342000
Reexamination Certificate
active
10819444
ABSTRACT:
Polyvinyl-alcohol-stabilized redispersible powders which have plasticizing properties are obtained by drying polyvinyl-alcohol-stabilized aqueous dispersions of polymers of one or more monomers from the group of vinyl esters of optionally branched C1-18alkylcarboxylic acids, (meth)acrylic esters of optionally branched C1-15alcohols, dienes, olefins, vinylaromatics and vinylhalides,in the presence of a copolymer formed froma) one or more monomers from the group of ethylenically unsaturated monocarboxylic acids, ethylenically unsaturated dicarboxylic acids and their anhydrides, each having 4 to 8 carbon atoms, and salts thereof,b) one or more ethylenically unsaturated compounds containing sulfonic, sulfuric, and/or phosphonic acid groups, and salts thereof, andc) one or more monomers from the group consisting of vinyl esters of optionally branched C1-18alkylcarboxylic acids and (meth)acrylic esters of optionally branched C1-15alcohols.
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Bastelberger Thomas
Dietrich Ulf
Harzschel Reinhard
Hoffmann Armin
Brooks & Kushman P.C.
Sastri Satya B.
Wacker Polymer Systems GmbH & Co. KG
Wu David W.
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