Coating composition utilizing modified sol having tin oxide-tung

Details Coating composition utilizing modified sol having tin oxide-tung Coating composition utilizing modified sol having tin oxide-tung

1995-04-06

2000-01-04

Nakarani, D. S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

351159, 351166, 428403, 428404, 428412, 4284255, B32B 516

Patent

active

060107782

ABSTRACT:
There are provided a coating composition, for use on a plastic lens with a refractive index exceeding 1.60, for avoiding interference fringes and unevenness in the reflected color, and a lens coated with such coating composition. The coating composition contains an organic silicon compound represented by R.sup.1.sub.a R.sup.2.sub.b Si(OR.sup.3).sub.4-(a+b) and modified sol of a double structure in which nuclei composed of tin oxide colloid particles are surrounded by tin oxide-tungsten oxide complex colloid particles, and the plastic lens is coated with such coating composition.

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Database WPI, Derwent Publications Ltd., London, GB; AN 91-263167, Jul. 25, 1991.

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