Method for reducing microfoam in a spray-applied waterborne composition
AssigneeRohm and Haas Company
InventorsVirginia A. Carlson, Maria E. Curry-Nkansah, Matthew S. Gebhard, Rosemarie P. Lauer
Life of this patent
Estimating the term…
Abstract
A method for reducing the amount of microfoam in a spray-applied clear waterborne polymeric composition is provided, wherein the clear composition contains certain emulsion-polymerized addition polymers or certain multi-staged emulsion-polymerized addition polymers is formed; is spray-applied to a substrate; and is dried. Also provided are substrates bearing such spray-applied clear compositions.
Claims17
A method for reducing the amount of microfoam in a spray-applied clear waterborne polymeric composition comprising:
- (a) forming said clear composition comprising an emulsion-polymerized addition polymer having a GPC weight average molecular weight of less than about 75,000;
- (b) applying said clear composition to a substrate using a spraying method;
- and
- (c) drying said clear composition.
A method for reducing the amount of microfoam in a spray-applied clear waterborne polymeric composition comprising:
- (a) forming said clear composition comprising multi-staged emulsion-polymerized addition polymer particles, said particles having an inner phase and an outer phase, wherein said outer phase has a GPC weight average molecular weight of less than about 200,000;
- (b) applying said clear composition to a substrate using a spraying method;
- and
- (c) drying said clear composition.
A method for reducing the amount of microfoam in a spray-applied clear waterborne polymeric composition comprising:
- (a) forming said clear composition comprising multi-staged emulsion-polymerized addition polymer particles, said particles having an average particle diameter from about 130 nanometers to about 250 nanometers.
- (b) applying said clear composition to a substrate using a spraying method;
- and
- (c) drying said clear composition.
A substrate bearing a spray-applied clear waterborne polymeric composition with reduced amount of microfoam, said clear composition comprising an emulsion-polymerized polymer having a GPC weight average molecular weight of less than about 75,000.
A substrate bearing a spray-applied clear waterborne polymeric composition with reduced amount of microfoam, said clear composition comprising multi-staged emulsion-polymerized addition polymer particles, said particles having an inner phase and an outer phase, wherein said outer phase has a GPC weight average molecular weight of less than about 200,000.
A substrate bearing a spray-applied clear waterborne polymeric composition with reduced amount of microfoam, said clear composition comprising multi-staged emulsion-polymerized addition polymer particles, said particles having an average particle diameter from about 130 nanometers to about 250 nanometers.
Dependencies are inferred from the claim text.