| abstract |
The present invention relates to A) a) 1.0 to 90% by weight of at least one alkyl (meth) acrylate; b) 0.1 to 10% by weight, based on the total amount of monomers for the synthesis of polymer A). At least one ethylenically unsaturated acid or vinyl monomer having a latent ionic group of: c) at least one monoethylenically unsaturated monomer having from 0 to 5.0% by weight of at least one keto group or aldehyde group D) at least one vinyl ester of a saturated aliphatic monocarboxylic acid in which 1.0 to 90% by weight of carboxyl groups are bonded to tertiary and / or quaternary carbon atoms; e) 0 to 20% % Of at least one vinyl aromatic compound; f) polysynthesized from 0-20% by weight of a monomer comprising at least one hydroxyalkyl (meth) acrylate And over, with B) optionally comprises at least one compound containing at least two functional groups reactive with keto groups or aldehyde groups, it relates to aqueous polymer dispersions. The present invention also provides an ink fixing primer comprising the aqueous polymer dispersion that enhances the bondability of the ink to a substrate such as polyethylene, polyethylene terephthalate, etc., particularly biaxially oriented polypropylene. |