1,2-naphthalocyanine near-infrared absorbent and recording/displ

Compositions – Liquid crystal compositions – Containing dopant salt

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2522995, 252587, 252589, 252600, 2522991, 350 11, 350330, 540129, 540130, 540136, 540139, C09K 1958, C09B 4704

Patent

active

049605380

ABSTRACT:
Disclosed are near-infrared absorbents comprising 1,2-naphthalocyanine derivatives wherein the four naphthalene rings contained in the molecule independently have 1 to 6 substituents. Also disclosed is the use of these near-infrared absorbents in optical recording media, near-infrared absorption filters and display materials.

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