16-benzalandrosta-1,4-diene-3,17-dione compounds and non-linear

Details 16-benzalandrosta-1,4-diene-3,17-dione compounds and non-linear 16-benzalandrosta-1,4-diene-3,17-dione compounds and non-linear

1992-03-04

1993-11-16

Tucker, Philip

Compositions

Light transmission modifying compositions

252587, 252589, 359328, 552528, F21V 900, F21V 904, G02B 900, C07J 100

Patent

active

052620905

ABSTRACT:
Non-linear optical materials using a 16-benzalandrosta-1,4-diene-3,17-dione compound represented by the formula [I] ##STR1## wherein R is hydrogen, alkyl or other specified substituents, have a high non-linear optical constant, and can provide a non-linear optical device having excellent properties.

REFERENCES:
patent: 3007946 (1961-11-01), Tyner
patent: 3163641 (1964-12-01), Christiansen et al.
patent: 4416821 (1983-11-01), van Rheenen et al.
patent: 4526720 (1985-07-01), van Rheenen et al.

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