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US4148661A Photochromic sheet glass compositions and method 失效
光致变色玻璃组合物及方法

Photochromic sheet glass compositions and method
摘要:
Chemically-strengthenable silver halide-containing lithium boroaluminosilicate glass compositions having physical and chemical characteristics required for sheet drawing processes and exhibiting excellent photochromic properties after heat treatment, and also strengthened photochromic drawn sheet glass articles provided therefrom, are described.
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