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US 2023/0416218 A1Published application
Photochromic compound, photochromic composition, photochromic article and eyeglasses
AssigneeHoya Lens Thailand Ltd.
InventorsHironori KAWAKAMI, Kei KOBAYASHI, Aoi MATSUE
Life of this patent
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Abstract
Provided are a photochromic compound represented by General Formula 1, and the like. In General Formula 1, R100 to R111, and X1 and X2 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure.
Claims20
A photochromic compound represented by the following General Formula 1:
- (in General Formula 1, R100 to R111, and X1 and X2 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure).
A photochromic compound represented by the following General Formula 2:
- (in General Formula 2, R200 to R211, and X3 and X4 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure).
A photochromic compound represented by the following General Formula 3:
- (in General Formula 3, R300 to R311, and X5 and X6 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure).
Dependencies are inferred from the claim text.