LIQUID NEOALKYLPOLYOL ESTERS OF MIXTURES OF NEO-AND STRAIGHT OR BRANCHED CHAIN ALKANOIC ACIDS AND THEIR PREPARATION

• Main Authors: TAI S. CHAO, MANLEY KJONAAS
• Format: Patent
• Language: English
• Published: 09.02.1971
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; FUELS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; ORGANIC CHEMISTRY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

1,158,386. Esters of tri-ols and tetra-ols. SINCLAIR RESEARCH Inc. 9 June, 1967 [16 June, 1966], No. 26681/67. Heading C2C. [Also in Division C5] Novel esters of pentaerythritol or a 1,1,1- trimethylolalkane of 5-7 C atoms having at least 3 of their hydroxyl groups esterified with 3,3-dimethylpentanoic acid, 3,3,4-trimethylpentanoic acid, 4,4-dimethylhexanoic acid, 4,4,- 5-trimethylhexanoic acid or 5,5-dimethylhexanoic acid or a mixture thereof which are liquids or supercooled liquids at room temperature are prepared by conventional means from suitable neo-polyols and the specified neo-alkyl fatty acids. Pentaerythritol is preferably tetraesterified and the 1,1,1-trimethylolalkane may be 1,1,1-trimethylolpropane. In the examples pentaerythritol tetrakis (3,3-dimethylpentanoate), ), -tetrakis(5,5-dimethylhexanoate) and -tetrakis(4,4-dimethylhexanoate) and trimethylolpropane tris(4,4-dimethylhexanoate), and others, are prepared. 5,5-Dimethylhexanoic acid is prepared by the reaction of neohexene with acetic acid and benzoyl peroxide.