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US 2009/0155474 A1Published application
Dispersions of cross-linked latex polymer particles and a curable amino resin
AssigneeRohm and Haas Company
InventorsMaureen Joanne Finley, Michael DeWayne Kelly
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Abstract
A water-dispersed coating composition comprising an amino resin, and a dispersion of latex polymer particles comprising from 0.1 to 2 weight percent of a multi-ethylenically unsaturated monomer and from 0.1 to 2 weight percent of (meth)acrylamide.
Claims10
A water-dispersed coating composition comprising
- a) at least one aqueous dispersion of particles made from a copolymer, based on the weight of the copolymer, comprising:
- i from 96 to 99.8 weight percent of at least one monoethylenically unsaturated nonionic monomer not including the (meth)acrylamide of component iii;
- ii from 0.1 to 2 weight percent of a multi-ethylenically unsaturated monomer;
- iii from 0.1 to 2 weight percent of (meth)acrylamide;
- wherein the said copolymer comprises no more than 1 weight percent, based on the weight of the copolymer, of a self-crosslinking monomer;
- and
- b) at least one amino resin selected from the group consisting of melamine/formaldehyde resin, urea/formaldehyde resin, guanamine/formaldehyde resin, benzoguanamine/formaldehyde resin and acetoguanamine/formaldehyde resin or combinations thereof;
- wherein the ratio of components a:b is from 1:99 to 20:80 based on the solids of both components.
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A method for treating a glass fiber non-woven bound with a cured acrylic modified amino resin binder comprising:
- (a) forming an aqueous admixture by admixing with water, or one or more aqueous solvent, and an amino resin, from 1% to 25% by weight, based on the weight of solids of said amino resin, of at least one aqueous dispersion of particles made from a copolymer, based on the weight of the copolymer, comprising:
- i. from 96 to 99.8 weight percent of at least one monoethylenically unsaturated nonionic monomer not including the (meth)acrylamide of component iii;
- ii. from 0.1 to 2 weight percent of a multi-ethylenically unsaturated monomer;
- iii. from 0.1 to 2 weight percent of (meth)acrylamide;
- wherein the said copolymer comprises no more than 1 weight percent, based on the weight of the copolymer, of a self-crosslinking monomer;
- and
- (b) contacting said glass fiber non-woven with said aqueous admixture or, alternatively, applying said aqueous admixture to the glass fiber non-woven;
- and
- (c) heating said admixture at a temperature of from 100 C to 400 C.
6 more elements
Dependencies are inferred from the claim text.