Coating processes – With pretreatment of the base – Etching – swelling – or dissolving out part of the base
Patent
1997-12-05
1999-11-09
Marquis, Melvyn I.
Coating processes
With pretreatment of the base
Etching, swelling, or dissolving out part of the base
427299, 427327, B05D 304
Patent
active
059809906
ABSTRACT:
The present invention relates to improving the durability of water repellent films and a method for providing the film on a substrate. The water repellent film is preferably formed over the substrate by applying a water repellent composition Over the substrate which will form the water repellent film. The durability of the water repellency of the film is improved by activating the substrate with an acid prior to forming the water repellent film over the substrate.
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Marquis Melvyn I.
PPG Industries Ohio Inc.
Stachel Kenneth J.
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