Patent classifications
C
CHEMISTRY; METALLURGY
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C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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C09B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; , e.g. PIGMENTS; MORDANTS; LAKES
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3/00
Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
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C09B3/22
Dibenzanthrones; Isodibenzanthrones
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C09B3/22

Coatable grey polarizer
10962696 · 2021-03-30 · ·

A linear polarizer may be formed a blue dichroic dye compound, having a maximum dichroic ratio Kd12 in an entire visible wavelength range, and a red dichroic dye compound, having a maximum dichroic ratio Kd16 in the entire visible wavelength range. The linear polarizer has a dichroic ratio Kd18 and a thickness of less than or equal to 2 micrometers. The linear polarizer may form an achromatic polarizer.

COATABLE GREY POLARIZER
20190235144 · 2019-08-01 ·

A linear polarizer may be formed a blue dichroic dye compound, having a maximum dichroic ratio Kd?12 in an entire visible wavelength range, and a red dichroic dye compound, having a maximum dichroic ratio Kd?16 in the entire visible wavelength range. The linear polarizer has a dichroic ratio Kd?18 and a thickness of less than or equal to 2 micrometers. The linear polarizer may form an achromatic polarizer.