Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1990-02-15
1991-11-19
Lusignan, Michael
Coating processes
With post-treatment of coating or coating material
Heating or drying
427387, 4273936, 4274071, 428447, 428540, 428703, B05D 302
Patent
active
050665200
ABSTRACT:
A process for improving the adhesion of aqueous silicone elastomeric materials to porous masonry substrates consists essentially of first coating the substrate with an aqueous silicone emulsion which provides an elastomeric coating upon removal of the water, the emulsion having a viscosity of from 0.1 to 10 Pa.s at 25.degree. C. and a pH of from 7 to 11.5 inclusive. After the first coating is dried to form a film, a second aqueous silicone emulsion which provides an elastomeric material upon removal of the water is applied. The second aqueous silicone emulsion has a solids content of greater than 15 percent by weight and a viscosity of greater than 10 Pa.s at 25.degree. C. The second silicone emulsion is then allowed to dry, forming an elastomer firmly adhered to the substrate. The elastomer can be in the form of a coating to give protection to the substrate from the effects of water, pollution, or sunlight; or can be in the form of a sealant to seal spaces between masonry pieces.
REFERENCES:
patent: 3294725 (1966-12-01), Findlay et al.
patent: 4221688 (1980-09-01), Johnson et al.
patent: 4273813 (1981-06-01), Meddaugh
patent: 4427811 (1984-01-01), Elias et al.
patent: 4433007 (1984-02-01), Marwitz et al.
patent: 4618642 (1986-10-01), Schoenherr
patent: 4618645 (1986-10-01), Bawman et al.
Freiberg Alan L.
Lefler, III Harold V.
Liles Donald T.
Dow Corning Corporation
Elliott Edward C.
Lusignan Michael
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