Method of treating the surface of a glass member

Details Method of treating the surface of a glass member Method of treating the surface of a glass member

1976-05-03

1977-09-06

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156663, C03C 1500, C03C 2506

Patent

active

040466191

ABSTRACT:
A method of treating a surface of a glass member intended to abut a transparent element for disrupting the light interference fringes formed therebetween. The method involves the steps of grinding the surface to form irregularities thereon; bathing the surface with an aqueous solution containing between substantially 41.3 percent and 45.7 percent by volume of sulfuric acid and between substantially 54.3 percent and 58.7 percent by volume of hydrofluoric acid for a time sufficient to polish the irregularities until the glass member is about 90 percent light transmissive; and washing the glass member with a liquid having a temperature substantially lower than the temperature of the aqueous solution for preventing further reaction between the aqueous solution and the surface.

REFERENCES:
patent: 2245137 (1941-06-01), Spielholz
patent: 2275602 (1942-03-01), Beck et al.
patent: 2999013 (1961-09-01), Meth
patent: 3527628 (1970-09-01), Fullerton et al.
patent: 3813568 (1974-05-01), Scott et al.
patent: 3976523 (1976-08-01), Andreeva et al.

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