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Photochromic material and color dose meter using the same

Compositions – Light transmission modifying compositions – Displaying color change
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Photochromic material, its method of manufacture, and products p

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Photochromic material, photochromic thin film, clay thin film, a

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Photochromic materials derived from ring-opening monomers...

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Photochromic matrix compositions for use in ophthalmic lenses

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Photochromic naphthopyran compositions of improved fatigue resis

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Photochromic naphthopyran compositions of neutral color

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Photochromic naphthopyran compounds

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Photochromic naphthopyran compounds

Compositions – Light transmission modifying compositions – Displaying color change
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Photochromic naphthopyran compounds

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Photochromic naphthopyran compounds

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Photochromic naphthopyran compounds

Compositions – Light transmission modifying compositions – Displaying color change
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Photochromic naphthopyran compounds

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Photochromic naphthopyran compounds

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Photochromic naphthopyran compounds

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Photochromic naphthopyran compounds

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Photochromic naphthopyran compounds: compositions and...

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Photochromic naphthopyrans

Compositions – Light transmission modifying compositions – Displaying color change
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Photochromic naphthopyrans, compositions and articles containing

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Photochromic naphtopyrane colorants, method for the production a

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