Pigment-free coating compositions

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1974-06-25

1976-10-19

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 291SB, 260 37SB, 260 465R, 2604482E, 350 1, 428412, C08J 302, C08L 8304

Patent

active

039869970

ABSTRACT:
An acidic dispersion of colloidal silica and hydroxylated silsesquioxane in an alcohol-water medium is coated onto solid substrates, such as acrylic lenses, to provide an abrasion resistant coating.

REFERENCES:
patent: 2568384 (1951-09-01), Cheronis
patent: 2610167 (1952-09-01), Te Grotenhuis
patent: 2786042 (1957-03-01), Iler
patent: 3435001 (1969-03-01), Merrill

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