Photochromic compound and photochromic composition

Details Photochromic compound and photochromic composition Photochromic compound and photochromic composition

C - Chemistry, Metallurgy

07

D

31/105, 260/244.

C07D 498/20 (2006.01) C07D 498/10 (2006.01) C09K 9/02 (2006.01) G03C 1/685 (2006.01)

Patent

CA 1335377

Disclosed herein is a photochromic compound comprising a spirooxazine compound represented by the following general formula (I): Image (I) wherein R1 means an alkyl, allyl or alkoxyalkyl group, or a substituted or unsubstituted aralkyl or aryloxyalkyl group, R2 and R3 individually denote a substituted or unsubstituted alkyl group, R4, R5, R6 and R7 stand individually for a hydrogen or halogen atom, or an alkyl, alkoxy, hydroxy, alkoxyalkyl, or substituted or unsubstituted amino group. A photochromic composition comprising the photochromic compound and a phenol derivative, fluorine-containing alcohol or hindered amine type light stabilizer is also disclosed.

601464

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