Process for the production of cardanol

Details Process for the production of cardanol Process for the production of cardanol

2006-04-05

2010-11-02

Sullivan, Daniel M (Department: 1621)

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

Organic compounds

Oxygen containing

C568S716000

Reexamination Certificate

active

07825284

ABSTRACT:
A process for the production of a color-stable composition containing cardanol and cardol including (a) subjecting crude, cashew nutshell liquid to distillation to obtain a distillate: (b) reacting the distillate with boric acid to obtain a reaction mixture; and (c) subjecting the reaction mixture to distillation is provided. A method for the production of color-stable phenalkamines including (a) subjecting crude, cashew nutshell liquid to distillation to obtain a distillate; (b) reacting the distillate with boric acid to obtain a reaction mixture; (c) subjecting the reaction mixture to distillation to obtain a main fraction; and (d) reacting the main fraction with an aliphatic amine and formaldehyde to form a color-stable phenalkamine is also provided.

REFERENCES:
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patent: 6262148 (2001-07-01), Cheng et al.
patent: 2066820 (1981-07-01), None
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patent: 2262525 (1993-06-01), None
Shishen Dat el al. “Phenalkamines: Multipurpose Epoxy Curing Agent”; Cardolite Corporation, Newark, New Jersey, USA; Reprint EPI-ERF Conference, Sep. 1994.

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