Photochromatic and thermochromatic compounds and their applicati

Details Photochromatic and thermochromatic compounds and their applicati Photochromatic and thermochromatic compounds and their applicati

1994-03-24

1998-03-24

Tucker, Philip

Compositions

Light transmission modifying compositions

Displaying color change

544 71, 252583, G02B 523, G02F 100, C07D26500

Patent

active

057309086

ABSTRACT:
A description follows of photochromatic and thermochromatic compounds, belonging to the group of spiro-indoline-oxazines, and their application in polymeric materials.

REFERENCES:
patent: 3562172 (1971-02-01), Ono et al.
patent: 3578602 (1971-05-01), Ono et al.
patent: 4215010 (1980-07-01), Hovey et al.
patent: 4342668 (1982-08-01), Hovey et al.
patent: 5166345 (1992-11-01), Akashi et al.
World Patents Index Latest, Section Ch: Week 9130, Derwent Publications Ltd. London, GB; Class A, AN-91217705 & JP-A-3 137 634 (Dainippon Ink Schem Ink KK) 12, Jun. 1991; "abstract".
World Patents Index Latest, Section Ch, Week 9125, Derwent Publications Ltd., London, GB; Class E, AN 91180613 & JP-A-3 107 839 (Hitachi KK) 8 May 1991, "abstract".
La Chemica E L'Industria, vol. 69, No. 9, Sep. 87 Specific Solvation and Reactivity of Anions in Catalysis Conditions for Transferral of Phase and in Solvents at Low Polarities, (1987).

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