B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/185, 204/96.
B05D 3/14 (2006.01) C09D 183/04 (2006.01) C23C 16/02 (2006.01)
Patent
CA 1204701
ABSTRACT OF THE DISCLOSURE There is disclosed a method for providing an improved abrasion resistant coating on solid substrates such as plastic articles and solid articles prepared thereby having on the surface such abrasion resistant coating. A solid substrate is coated with an organosilanol-type coating liquid comprising organosilanol molecules or a partial condensation product thereof. At least 90 mole percent of said organosilanol molecules are trifunctional silanol molecules of the formula RSi(OH)3, R being a hydrocarbon radical, and at least 50 mole percent of said trisilanols being an alkyl trisilanols of 1-3 carbon atoms or phenyl trisilanol. Preferably, at least 70 mole percent of the trisilanol is methyltrisilanol. After the coating is cured by a conventional means, it is post-treated by a glow discharge to afford an abrasion resistance far superior to those obtained from organosilanol coating liquids without glow discharge post-treatment. There is also disclosed a mirrored solid substrate such as a plastic sheet having an improved abrasion resistance which comprises a layer of a glow discharge treated organosiloxane coating and a mirror layer deposited thereon.
434912
Haddad Theodore A.
Phillips Richard A.
Bereskin & Parr
Foster Grant Corporation
LandOfFree
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