Transparent laminated polarizing glasses
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United States of America Patent
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Jul 28, 1987
Grant Date -
N/A
app pub date -
Feb 20, 1986
filing date -
Aug 13, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention is concerned with a method for preparing transparent laminated polarizing glass articles consisting of a support of an inorganic or organic glass, a coating exhibiting polarizing properties disposed on one of the surfaces of the support, and an optically transparent layer adhered to the coating which protects the coating from humidity. The vital feature of the method comprises a first treatment by a gamma-aminopropyltrialkoxysilane and a second treatment by an epoxyalkyltrialkoxysilane which is designed to improve the adherence of the optically transparent layer to the polarizing coating. The invention is especially useful in the fabrication of eyeglass lenses.
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