Low/zero voc glycol ether-esters as coalescents for aqueous polymeric dispersions
OwnerLinda A. ADAMSON, Michael C. BECKER +5inventors
InventorsLinda A. ADAMSON, Michael C. BECKER, Felipe A. DONATE, David M. FASANO, Sarah E. ITTNER, Rebecca J. WACHOWICZ, Thomas R. TEPE
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Abstract
Certain ether-esters compounds and certain ether ester coalescents are provided. Also provided are an aqueous coating composition including an aqueous polymeric dispersion and from 0.1% to 40% by weight, based on the weight of the aqueous polymeric dispersion solids, of the glycol ether-ester coalescents and a method for forming a coating from the aqueous coating composition.
Claims10
A glycol ether-ester selected from the group consisting of:
- triethylene glycol n-pentyl ether benzoate;
- triethylene glycol n-hexyl ether benzoate;
- tripropylene glycol n-butyl ether benzoate;
- tripropylene glycol n-pentyl ether benzoate;
- dipropylene glycol n-butyl ether benzoate;
- dipropylene glycol 2-ethylhexyl ether benzoate;
- dipropylene glycol phenyl ether benzoate;
- ethylene glycol n-hexyl ether levulinate;
- diethylene glycol n-hexyl ether levulinate;
- diethylene glycol phenyl ether levulinate;
- triethylene glycol n-butyl ether levulinate;
- dipropylene glycol phenyl ether levulinate;
- tripropylene glycol methyl ether levulinate;
- tripropylene glycol n-propyl ether levulinate;
- and tripropylene glycol n-butyl ether levulinate.
A glycol ether-ester coalescent selected from the group of compositions of Formula (I)
- wherein R1 is a C1-C8 alkyl group, phenyl or benzyl, R2 is either hydrogen or methyl, R3 is a carbon chain comprising 4-6 carbon atoms, and n=2-4;
- of Formula (II)
- wherein R1 and R4 are, independently, C1-C10 alkyl groups, phenyl or benzyl, R2 is either hydrogen or methyl, R3 is a carbon chain comprising 1-2 carbon atoms, and n=1-4;
- and mixtures thereof.
A glycol ether-ester coalescent selected from the group of compositions of Formula (II)
- wherein R1 and R4 are, independently, C1-C10 alkyl groups, phenyl or benzyl, R2 is either hydrogen or methyl, R3 is a carbon chain comprising 3-4 carbon atoms, and n=1-4;
- and mixtures thereof;
- wherein the boiling point of said coalescent is greater than 450° C. at 760 mm Hg.
Dependencies are inferred from the claim text.