Dihydroxy aromatic compounds and methods for preparation

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

Reexamination Certificate

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C564S133000

Reexamination Certificate

active

11289215

ABSTRACT:
A dihydroxy aromatic compound having a Formula (I),wherein R1is a C6–C60aromatic divalent functionality, R2at each occurrence, can be the same or different and is independently at each occurrence selected from the group consisting of a cyano functionality, a nitro functionality, a halogen, an aliphatic functionality having 1 to 10 carbons, a cycloaliphatic functionality having 3 to 10 carbons and an aromatic functionality having 6 to 10 carbons, and “n” is an integer having a value of 0 to 4.

REFERENCES:
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patent: 2865751 (1958-12-01), George et al.
patent: 3856748 (1974-12-01), Dexter et al.
patent: 4577042 (1986-03-01), Collins et al.
patent: 5130454 (1992-07-01), Hickmann et al.
patent: 5130481 (1992-07-01), Khanna et al.
patent: 5157066 (1992-10-01), Shoji et al.

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