US Patent No: 5,338,345
Number of patents in Portfolio can not be more than 2000
Water-based water repellent coating compositions
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Aug 16, 1994
Issued date -
Feb 3, 1994
filing date -
08/191,240
serial no -
In Force
status
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Abstract
There is provided a water based water repellent coating composition, method of making and method of use. The coating composition comprises an emulsion having water as the continuous phase and, as the discontinuous phase, droplets of a nonvolatile organic water repellent composition, the emulsion containg an emulsion stabilizing amount of a hydrophobically modified polyacrylic acid polymer wherein the viscosity of the emulsion is less than about 100 Cps and the particle size of the droplets is less than about 50 microns. The relatively low viscosity and small particle size provides for easy application and excellent penetration into porous substrates. The process of making the compositions involves the making of a conventional emulsion of this type and then high kinetic energy processing so as to produce the desired viscosity and particle size. The method of use involves the application of the composition to a substrate followed by evaporation of the water and any volatile components from the composition.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,996,274 Polycarboxylic acids with higher thickening capacity and better clarity | 13 | 1988 | |
| 4,923,940 Polycarboxylic acids with higher thickening capacity and better clarity | 13 | 1989 | |
| 5,004,598 Stable and quick-breaking topical skin compositions | 39 | 1989 | |
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| 5,205,860 Water repellents containing organosilicon compounds | 22 | 1992 | |
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| 5,196,054 Preparation for the water-repellant impregnation of porous, mineral building materials | 29 | 1991 | |
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| 4,741,773 Water repellent composition | 19 | 1986 | |
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| 5,120,355 Water-repellent composition | 31 | 1991 | |
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| 5,049,186 Water-based protective compositions for coating films | 15 | 1990 | |
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| 4,509,949 Water thickening agents consisting of copolymers of crosslinked acrylic acids and esters | 168 | 1983 | |
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| 4,421,902 Alkyl, poly(oxyethylene) poly(carbonyloxyethylene) acrylate emulsion copolymers for thickening purposes | 76 | 1982 | |
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| 4,648,904 Aqueous systems containing silanes for rendering masonry surfaces water repellant | 90 | 1986 | |
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| 5,226,954 Organosilicon composition | 27 | 1991 | |