Novel squarine systems

Details Novel squarine systems Novel squarine systems

1983-12-05

1985-06-04

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C 8500, C07C 8502, C07C 8506

Patent

active

045216215

ABSTRACT:
An unsymmetrical squaraine composition, process for synthesizing the unsymmetrical squaraine composition, devices containing the unsymmetrical squaraine composition, and methods of using the devices. The process for synthesizing the unsymmetrical squaraine composition comprises forming a mixture comprising squaric acid, a long chain primary alcohol, a first tertiary amine, and a second tertiary aromatic amine different from the first tertiary aromatic amine, and heating the mixture in vacuo below the boiling points of the primary alcohol, the first tertiary amine and the second tertiary aromatic amine to form an unsymmetrical squaraine composition. The novel unsymmetrical squaraine composition synthesized by this process may be used in electrostatographic imaging members comprising a supporting substrate and a photoconductive layer comprising the novel unsymmetrical squaraine composition. These electrostatographic imaging members may be utilized in an electrostatographic imaging processes.

REFERENCES:
White et al., "J.A.C.S.", 86, pp. 453-458, 2/1964.

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