Transparent synthetic resin laminate having photochromism

Details Transparent synthetic resin laminate having photochromism Transparent synthetic resin laminate having photochromism

2006-01-17

2006-01-17

Seidleck, James J. (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polycarbonate

C428S424400, C428S500000

Reexamination Certificate

active

06986946

ABSTRACT:
A transparent synthetic resin laminate with photochromism property consisting essentially of two transparent synthetic resin layers and a photochromic layer formed by curing a mixture of a two liquid polyurethane of a polyurethane prepolymer and a curing agent and a photochromic organic compound which is interposed between said two transparent synthetic resin layers.

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XP002232717, Derwent Publications Ltd., London, GB; AN 1988-245817 Abstract of JP 63 178193 A (Nippon Sheet Glass Co Ltd), Jul. 22, 1988.
Refractive index control of transparent polymer “Chemical Survey” No. 39, 1998, p. 174-175 edited by the Japanese Chemical Society.
Company Brochure, Mitsubishi Gas Chemical Company, Inc. Osaka Plant.

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