Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1990-06-26
1991-03-19
Bell, Janyce
Coating processes
With post-treatment of coating or coating material
Heating or drying
1061971, 10628723, 10628734, 427 67, 4273977, 427230, 524 44, B05D 302
Patent
active
050009893
ABSTRACT:
A coating suspension including negatively charged fine particles, water, a negative charge precursor, a defoaming agent, a surface active agent, an insolubilizing agent, a plasticizer, and two water-soluble binders is provided. In a preferred embodiment the fine particles are fine particle-size silica. There is also provided a method for coating a substrate with fine particles having a negative electrical charge. The method includes forming a coating suspension including the fine particles, water, a negative charge precursor, a defoaming agent, a surface active agent, an insolubilizing agent, a plasticizer, and two water-soluble binders; applying the coating suspension to the surface of the substrate to form a coated substrate; and heating the coated substrate to cure the coating and remove the water from the suspension. The coating formed is insoluble in water and water based media.
REFERENCES:
patent: 4088802 (1978-05-01), Shriver
patent: 4148935 (1979-04-01), Shreurs
patent: 4340512 (1982-07-01), Shreurs
patent: 4344016 (1982-04-01), Hoffman et al.
The Condensed Chemical Dictionary, 6th ed., N.Y., Reinhold, 1961, p.
Bell Janyce
Finnegan Martha Ann
GTE Products Corporation
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