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AssigneeCelanese International Corporation
InventorsMatthias Junk, Eunsoo Kang, Harald Petri, Maximilian Nau
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A coating composition (e.g., a paint) may include: a pigment; a filler, a polymer dispersion; and a thickener. The polymer dispersion may include a polymer formed by radically initiated emulsion polymerization of a monomer mixture comprising ethylenically unsaturated monomers that comprise (i) one or more carboxylic acid-functional monomers in an amount to yield 10.0-22.0 mmol carboxylic acid groups per 100 g monomer mixture and (ii) one or more epoxy-functional monomers in an amount to yield 3.0-10.0 mmol epoxy-functional groups per 100 g monomer mixture.
An aqueous polymer dispersion for improving wet scrub resistance of a coating, comprising a polymer formed by radically initiated emulsion polymerization of a monomer mixture comprising ethylenically unsaturated monomers that comprise (i) one or more carboxylic acid-functional monomers in an amount to yield 10.0-22.0 mmol carboxylic acid groups per 100 g monomer mixture, (ii) one or more epoxy-functional monomers in an amount to yield 3.0-10.0 mmol epoxy-functional groups per 100 g monomer mixture, and (iii) 0.5-5 mmol of an ethylenically unsaturated silane-functional monomer and/or 0.5-5 mmol of an silane-functional compound.
An aqueous polymer dispersion for improving wet scrub resistance of a coating, comprising a polymer formed by radically initiated emulsion polymerization of a monomer mixture comprising ethylenically unsaturated monomers that comprise (i) one or more carboxylic acid-functional monomers in an amount to yield 10.0-22.0 mmol carboxylic acid groups per 100 g monomer mixture and (ii) one or more epoxy-functional monomers in an amount to yield 3.0-10.0 mmol epoxy-functional groups per 100 g monomer mixture, wherein a molar ratio of carboxylic acid to epoxy groups in the range of 1.2-3.0.
Dependencies are inferred from the claim text.