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US 8,507,587 B2Granted
Lightweight wall repair compounds
Assignee3M Innovative Properties Company
InventorsJohn E. Gozum, Richard A. Mallo
Life of this patent
Estimating the term…
Abstract
Herein are disclosed wall repair compounds comprising at least one or more polymeric binder latex emulsions, one or more inorganic fillers, and comprising an amount of organic polymeric thickener that is less than about 0.1 percent by weight based on the total weight of the wall repair compound. In certain embodiments, the wall repair compound comprises an inorganic filler system selected such that such that synthetic inorganic fillers comprise essentially 100 percent of the inorganic filler used. In certain embodiments, the wall repair compound comprises one or more organic ether smoothing agents.
Claims32
A wall repair compound, comprising,
- from about 20 percent to about 80 percent by weight aqueous latex binder emulsion;
- from about 20 percent to about 70 percent by weight of an inorganic filler system,
- wherein the inorganic filler system is comprised of essentially 100 percent by weight synthetic inorganic filler that comprises substantially spherical synthetic particles and wherein the particles comprise a set of relatively large diameter glass bubbles and a set of relatively small ceramic microspheres, with the ratio of the median particle size of the glass bubbles to the median particle size of the ceramic microspheres being in the range of about 5:1 to about 40:1;
- from about 0.025 percent to about 2.5 percent by weight of at least one organic ether smoothing agent that comprises at least one ether linkage and that comprises no more than one hydroxyl group;
- and,
- less than about 0.1 percent by weight of organic polymeric thickener.
3 more elements
A wall repair compound, comprising,
- from about 20 percent to about 80 percent by weight aqueous latex binder emulsion;
- from about 20 percent to about 70 percent by weight of an inorganic filler system,
- wherein the inorganic filler system is comprised of essentially 100 percent by weight synthetic inorganic filler;
- from about 0.05 percent to about 1.5 percent by weight of at least one organic ether smoothing agent that comprises at least one ether linkage and that comprises no more than one hydroxyl group;
- and,
- less than about 0.1 percent by weight of organic polymeric thickener.
3 more elements
A wall repair compound, comprising,
- from about 20 percent to about 80 percent by weight aqueous latex binder emulsion;
- from about 20 percent to about 70 percent by weight of an inorganic filler system,
- wherein the inorganic filler system is comprised of essentially 100 percent by weight synthetic inorganic filler;
- from about 0.025 percent to about 2.5 percent by weight of at least one organic ether smoothing agent that comprises exactly one hydroxyl group and exactly one ether linkage, and is selected from the group consisting of propylene glycol butyl ether, propylene glycol methyl ether, propylene glycol propyl ether, propylene glycol phenyl ether, ethylene glycol butyl ether, ethylene glycol propyl ether, ethylene glycol hexyl ether, and ethylene glycol phenyl ether, and mixtures thereof;
- and,
- less than about 0.1 percent by weight of organic polymeric thickener.
3 more elements
A wall repair compound, comprising,
- from about 20 percent to about 80 percent by weight aqueous latex binder emulsion;
- from about 20 percent to about 70 percent by weight of an inorganic filler system,
- wherein the inorganic filler system is comprised of essentially 100 percent by weight synthetic inorganic filler;
- from about 0.025 percent to about 2.5 percent by weight of at least one organic ether smoothing agent that comprises exactly one hydroxyl group and exactly two ether linkages, and is selected from the group consisting of dipropylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol propyl ether, diethylene glycol butyl ether, diethylene glycol methyl ether, diethylene glycol hexyl ether, and diethylene glycol ethyl ether, and mixtures thereof, and mixtures thereof with organic ethers that comprise exactly one ether linkage;
- and,
- less than about 0.1 percent by weight of organic polymeric thickener.
3 more elements
A wall repair compound, comprising,
- from about 20 percent to about 80 percent by weight aqueous latex binder emulsion;
- from about 20 percent to about 70 percent by weight of an inorganic filler system,
- wherein the inorganic filler system is comprised of essentially 100 percent by weight synthetic inorganic filler;
- from about 0.025 percent to about 2.5 percent by weight of at least one organic ether smoothing agent that comprises no hydroxyl groups and at least one ether linkage, and is selected from the group consisting of dipropylene glycol dimethyl ether, propylene glycol methyl ether acetate, dipropylene glycol methyl ether acetate, ethylene glycol butyl ether acetate, diethylene glycol butyl ether acetate, mixtures thereof, and mixtures thereof with organic ethers that contain exactly one hydroxyl group;
- and,
- less than about 0.1 percent by weight of organic polymeric thickener.
3 more elements
Dependencies are inferred from the claim text.