Light-polarizing films containing dichroic dyes

Details Light-polarizing films containing dichroic dyes Light-polarizing films containing dichroic dyes

1993-02-23

1994-08-23

Higel, Floyd D.

Compositions

Light transmission modifying compositions

Producing polarized light

2525011, 534689, 534806, 534815, G02B 104, C08K 523, C09B 3122, C09B 3326, C09B 3556, C09B 5604

Patent

active

053405048

ABSTRACT:
The invention relates to light-polarizing films based on water-soluble organic polymers, more particularly polyvinyl alcohol (PVAL), which contain one or more dichroic bis-, tris- or tetrakis-azo dyes.

REFERENCES:
patent: 1416621 (1922-05-01), Dedichen
patent: 1498316 (1924-06-01), Bauer et al.
patent: 1819961 (1931-08-01), Mayer et al.
patent: 1829673 (1931-10-01), Richard
patent: 1906754 (1933-05-01), Jordan
patent: 4006130 (1977-02-01), Ditzer
Orbit abstract of EP 376 032.

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