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US 2013/0143980 A1Published application
Microsphere based wall repair compound
AssigneeRohm and Haas Company
InventorsAdam Fasula, James Bohling
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Abstract
The present invention is a drying composition comprising spherical beads and a stable aqueous dispersion of polymer particles and also a dried composition of the spherical beads and a polymer film. The composition is useful as a wall repair formulation.
Claims14
A drying composition comprising spherical beads and a stable aqueous dispersion of polymer particles, wherein
- a) the spherical beads are characterized by:
- i) not being film-forming at ambient temperature;
- ii) having a uniformity coefficient of not greater than 1.5;
- and iii) having a volume average particle size in the range of from 1 μm to 1 mm;
- b) the dispersion of polymer particles is characterized by:
- i) being film-forming at ambient temperature;
- ii) having a solids content in the range of from 10 to 65%;
- and iii) having a volume average particle size in the range of 20 nm to 500 nm, with the proviso that the volume average particle size of the beads are at least 8 times greater than the volume average particle size of the polymer particles;
- and
- c) the volume of the stable aqueous dispersion of polymer particles is in the range of from 20 to 60% based on the volume of the dispersion and the beads.
7 more elements
A dried composition comprising spherical beads and a polymer film adhering to the beads, wherein
- a) the spherical beads are characterized by:
- i) not being film-forming at ambient temperature;
- ii) having a uniformity coefficient of not greater than 1.5;
- iii) having a volume average particle size in the range of from 1 μm to 1 mm;
- and
- b) the volume of polymer film is in the range of from 2 to 40 volume % based on the volume of the polymer and the beads.
3 more elements
Dependencies are inferred from the claim text.