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Patent -
Described is a process for preparing an aqueous polymer dispersion from ethylenically unsaturated, free-radically polymerizable monomers. In a first stage, a first polymer is prepared by free-radical emulsion polymerization. In a second stage, an aqueous polymer dispersion is prepared in the presence of the first polymer. The monomers of the first stage comprise monomers with acid groups. The...
Source : APN 12-15-11 20110305914/US-A1 NDN- 041-1295-6478-1
INVENTOR- WILMS, Daniel Alzey, DE
INVENTOR- Schumacher, Karl-Heinz Neustadt, DE
INVENTOR- GroB, Michael Mannheim, DE
INVENTOR- Langhauser, Georg Ruppertsberg, DE
APPLICANT- BASF SE Ludwigshafen, DE
PATENT APPLICATION NUMBER- 156771/13
DATE FILED- 2011-06-09
PUBLICATION NUMBER- 20110305914/US-A1
PUBLICATION DATE- 2011-12-15
US PATENT CLASS- 428500000O; X524460000; X156327000
INTERNATIONAL PATENT CLASS- B32B00712; B32B03712; B32B02700; C09J13312 ; C09J15104
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