Alkoxyacrylamide photochromic coatings compositions and photochr

Details Alkoxyacrylamide photochromic coatings compositions and photochr Alkoxyacrylamide photochromic coatings compositions and photochr

1998-12-14

2000-05-09

Tucker, Philip

Compositions

Light transmission modifying compositions

Displaying color change

351163, 428500, 428501, 428511, 428412, 4284242, 428441, 428461, G02B 523, G02C 710, B32B 2700

Patent

active

060600012

ABSTRACT:
Described are articles having an alkoxyacrylamide photochromic coating. The coatings exhibit a Fischer microhardness of from 50 to 130 Newtons per mm.sup.2 and desirable photochromic properties, i.e., the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light. Also described are alkoxyacrylamide photochromic articles.

REFERENCES:
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patent: 4873029 (1989-10-01), Blum
patent: 4931220 (1990-06-01), Haynes et al.
patent: 5391327 (1995-02-01), Ligas et al.
patent: 5618586 (1997-04-01), Swarup et al.
patent: 5645767 (1997-07-01), Van Gemert
patent: 5658501 (1997-08-01), Kumar et al.
patent: 5770115 (1998-06-01), Misura

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