The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2010
Filed:
Apr. 05, 2006
Setsuo Sato, Sao José dos Campos, BR;
Wanderson Bueno DE Almeida, Sao José dos Campos, BR;
Ramiro Carielo Bueno, Jacarei, BR;
Alexssander Shigueru Araujo, Sao José dos Campos, BR;
Setsuo Sato, Sao José dos Campos, BR;
Wanderson Bueno De Almeida, Sao José dos Campos, BR;
Ramiro Carielo Bueno, Jacarei, BR;
Alexssander Shigueru Araujo, Sao José dos Campos, BR;
Cognis IP Management GmbH, Duesseldorf, DE;
Abstract
A process for the production of a color-stable composition containing cardanol, including (a) subjecting crude, cashew nutshell liquid to distillation to obtain a distillate; (b) reacting the distillate with acetic anhydride to obtain a reaction mixture; and (c) subjecting the reaction mixture to fractional 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 acetic anhydride to obtain a reaction mixture; (c) subjecting the reaction mixture to fractional distillation to obtain a cardanol-containing fractional distillate; and (d) reacting the fractional distillate with an aliphatic amine and formaldehyde to form a color-stable phenalkamine is also provided.