Process for imparting hydrophobicity to mineral substrates

Details Process for imparting hydrophobicity to mineral substrates Process for imparting hydrophobicity to mineral substrates

1984-12-21

1990-06-26

Bell, Janyce

Coating processes

With post-treatment of coating or coating material

Chemical agent applied to treat coating

427337, B05D 310

Patent

active

049371045

ABSTRACT:
Disclosed is a process for imparting hydrophobicity to an inorganic porous mineral substrate which comprises mixing at least one silane and/or hydrolysis and/or condensation product thereof, at least deactivatable surfactant and water or a water/organic alcohol mixture to form a dispersion emulsion, applying the resulting dispersion or emulsion to the substrate, and, if necessary, subsequently treating the substrate in order to deactivate the surfactant.

REFERENCES:
patent: 2982674 (1961-05-01), Ganeburg
patent: 3424598 (1969-01-01), Snyder et al.
patent: 3563786 (1971-02-01), Tse et al.
patent: 3772065 (1973-11-01), Seiler
patent: 3849357 (1974-11-01), Wolf
patent: 4002800 (1977-01-01), Nestler et al.
patent: 4137367 (1979-01-01), Sample et al.
Schwartz et al. Surface Active Agents, Interscience Publ., N.Y., 1949, pg. 204, Tp 149 S4Cop4.

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