Chemical treatment for silica-containing glass surfaces

Details Chemical treatment for silica-containing glass surfaces Chemical treatment for silica-containing glass surfaces

1999-04-13

1999-12-07

Sanghavi, Hemang

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385141, 385145, 65385, 65430, 65435, 4271632, 428391, G02B 602, C03C 2502

Patent

active

059996811

ABSTRACT:
Dehydroxylated, silica-containing, glass surfaces are known to be at least partially terminated by strained siloxane rings. According to the invention, a surface of this kind is exposed to a selected silane compound or mixture of silane compounds under reaction-promoting conditons. The ensuing reaction results in opening of the strained siloxane rings, and termination of surface atoms by chemical species, such as organic or organosilicon species, having desirable properties. These species can be chosen to provide qualities such as hydrophobicity, or improved coupling to a polymeric coating.

REFERENCES:
patent: 4749395 (1988-06-01), Schneider
patent: 4835057 (1989-05-01), Bagley et al.
patent: 4969711 (1990-11-01), Rogler et al.
patent: 5198270 (1993-03-01), Andrejco et al.
patent: 5484822 (1996-01-01), Minns

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