Back to results
US 2011/0033532 A1Published application
Aqueous polymer dispersion based on n,n-diethylaminoethyl methacrylate, its preparation and use
AssigneeBASF SE
InventorsMaximilian Angel, Karl Kolter, Hartwig Voss
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process for preparing an aqueous polymer dispersion by free-radical emulsion polymerization of a monomer mixture which comprises N,N-diethylaminoethyl methacrylate, to the polymer dispersion obtainable by this process, and to the use thereof.
Claims36
-32. (canceled)
A process for preparing an aqueous polymer dispersion Pd) by free-radical emulsion polymerization of a monomer mixture M), comprising
- a) N,N-diethylaminoethyl methacrylate, and
- b) at least one compound capable of free-radical polymerization selected from esters of α,β-ethylenically unsaturated mono- and dicarboxylic acids with C1-C8 alkanols,
- in an aqueous medium at a pH of at least 8.
An aqueous polymer dispersion Pd) which is soluble through reduction in the pH and comprises
- at least one polymer which comprises
- a) N,N-diethylaminoethyl methacrylate, and
- b) at least one compound capable of free radical polymerization and selected from esters of α,β-ethylenically unsaturated mono- and dicarboxylic acids with C1-C8-alkanols,
- as copolymerized units,
- at least one emulsifier selected from anionic and nonionic emulsifiers, and
- water.
3 more elements
Dependencies are inferred from the claim text.