Photochromic materials having a thin photochromic film and a met

Details Photochromic materials having a thin photochromic film and a met Photochromic materials having a thin photochromic film and a met

1990-08-02

1993-10-12

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Dye image from radiation sensitive dye or dye former by dry...

Composition or product

428 17, 428341, 428343, 428962, G03C 172

Patent

active

052524370

ABSTRACT:
A photochromic material having a thin film of an ion complex of a photochromic substance having an anionic group and a cationic surface active agent is described. Since the surface active agent is used, a uniform film with good photochromism can be obtained. A method for fabricating the photochromic material is also described.

REFERENCES:
patent: 3320067 (1967-05-01), Taylor
patent: 3501410 (1970-03-01), Newland et al.
patent: 4741920 (1988-05-01), Ueno et al.
patent: 4913948 (1990-04-01), Ando et al.
Thin Solid Films, vol. 132, 1985, pp. 243-248, Lausanne, CH; M. Shimomura et al.: "Preparation of Langmuir-Blodgett films of azobenzene amphiphiles as polyion complexes".
J. Photopolym. Sci. Technol., vol. 2, No. 2, 1989, pp. 147-152; T. Seki et al.: "Photochromism of spiropyrans in bilayers intercalated between a smectitic clay".
Thin Solid Films, vol. 178, 1989, pp. 103-108, Lausanne, CH; E. Ando et al.: "Molecular arrangements of photochromic spiropyrans on a subphase".

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