Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Роман Григорьевич ЛюбинfiledCriticalРоман Григорьевич Любин
Priority to UAU201309490UpriorityCriticalpatent/UA86856U/en
Publication of UA86856UpublicationCriticalpatent/UA86856U/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Disclosed is a process for the preparation of high-temperature antioxidant additive to lubricants by condensation of 2,6-di-tert-butylphenol and alkylphenols with urotropin. Alkylphenols with C- Cradical are used as alkylphenols. The condensation is carried out in the presence of catalyst, and prepared product is treated with boric acid in mole ratio of 2,6-di-tert-butylphenol:boric acid equal to1:(0.5-2.0):(0.003-3.0).
UAU201309490U2013-07-292013-07-29Process for the preparation of high-temperature antioxidant additive
UA86856U
(en)