High molecular weight mannich condensation products from two different alkyl-substituted hydroxy-aromatic compounds

Abstract

Abstract PRODUCTS OF THE CONDENSATION OF (1) A HIGH MOLECULAR WEIGHT ALKYL - SUBSTITUTED HYDROXYAROMATIC COMPOUND WHOSE ALKYL SUBSTITUENT HAS UPWARD FROM 40 TO 20,000 AND ATOMS, (2) A LOWER MOLECULAR WEIGHT ALKYL-SUBSTITUTED PHENOL WHOSE ALKYL-SUBSTITUENT HAS 2 TO 20 CARBON ATOM, (3) AN AMINE HAVING TWO PRIMARY AMINO (-NH2) GROUPS AND (4) AND ALDEHYDE IN THE RESPECTIVE MOLAR RATIO OF REACTANTS OF 2.0:0.7-1.4-2.0:2.8-4.0, ARE NOVEL ASHLESS-TYPE (METAL FREE) MINERAL-OIL SOLUBLE ADDITON AGENTS HAVING DISPERSANT DETERGENT AND ANTI-OXIDANT FUNCTIONSAFFORDING ANTI-SLUGE AND ANTI-VARNISH DEPOXITION AND CORROSION INHIBITION IN CRANKCASE LUBRICATING COMPOSITIONS SUBJECTED TO LOW OR HIGH TEMPERATURE IN-SERVICE USE. SUCH CONDENSATION PRODUCTS ARE PREPARED EITHER BY SINGLE STEP REACTION CONDUCTED BY SUBJECTING ALL FOUR OF THE REACTANTS IN THE STATED MOLAR RATIO OF REACTANTS TO A SINGLE CONDENSATION REACTION UNDER KNOWN MANNICH CONDENSATION REACTION CONDITIONS OR BY A TWO STEP REEACTION WHEREIN REACTANTS (1), (3) AND (4) ARE FIRST SUBJECTED TO MANNICH CONDENSATION CONDITIONS IN THE RESPECTIVE MOLAR RATIO OF 2:1.4-2.0:1.4-2.0 AND THE ESULTING FIRST STEP PRODUCT IS FURTHER CONDENSED WITH REACTANTS (2) AND (4) USED IN THE ESPECTIVE MOLAR RATIO OF 0.7-1.0:1.4-2.0.

Inventors

• 👤 E Piasek
• 👤 R Karll

Bibliographic Details