发明授权
US5166345A Photochromic compound 失效
光致变色化合物

Photochromic compound
摘要:
A novel photochromic compound and a polymer comprising the photochromic compound are disclosed. The novel photochromic compound of the present invention is a spirooxazine compound having an addition polymerizable organic functional group or a ring-opening polymerizable organic functional group therein.
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