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US 2014/0213692 A1Published application
Aqueous polymer dispersion
AssigneeRohm and Haas Company
InventorsTingke Zhang, Qingwei Zhang
Life of this patent
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Abstract
The present invention relates generally to an aqueous polymer dispersion and a coating composition made thereof, especially to a “green” antibacterial polymer dispersion with improved color stability property upon exposure to heat and/or light, and the coating composition made thereof.
Claims8
An aqueous polymer dispersion comprising:
- a) a polymer comprising, as polymerized units, from 0.1% to 10% by dry weight percentage based on the dry weight of the polymer dispersion, at least one acetoacetoxy or acetoacetamide group containing monomer;
- b) 0.001% to 0.15% by dry weight percentage based on the dry weight of the polymer dispersion, at least one metal ion;
- and
- c) an amino acid, being present in the mole ratio of amino acid/ acetoacetate or acetoacetamide group containing monomer from 0.9:1 to 5:1.
1 more element
Dependencies are inferred from the claim text.