Surface active, liquid ester mixtures containing hydroxyl, and a method of preparing same
AssigneeDynamit Nobel Aktiengesellschaft
InventorsSasanka Sekhar Naskar, Gustav Renckhoff, Wolfgang Heers, Reinhard Pass
Life of this patent
Estimating the term…
Abstract
Surface active, liquid, hydroxyl-containing mixed esters which are condensation products of: (a) 1 mole of triethanolamine, glycerine, trimethylolpropane or pentaerythritol, (b) 1 to 2 moles of a saturated, branched, aliphatic or cycloaliphatic carboxylic acid of 16 to 26 C atoms or mixtures thereof, and (c) 0.1 to 0.9 moles, preferably 0.1 to 0.7 moles, of an aliphatic straight-chain or branched dicarboxylic acid of 3 to 10 C atoms, or mixtures thereof.
Claims38
Surface active, liquid, hydroxyl-containing mixed ester, having a hydroxyl number from 20 to 260, saponification numbers from 150 to 350 and acid number under 5 which is a condensation product of
- (a) 1 mole of glycerine, trimethylolpropane or pentaerythritol or a mixture thereof,
- (b) 1 to 2 moles of a saturated, branched, aliphatic monocarboxylic acid of 16 to 26 C atoms or a mixture thereof, and
- (c) 0.1 to 0.9 moles, of an aliphatic straight-chain or branched dicarboxylic acid of 3.degree. to 10.degree. C atoms, or an anhydride thereof or a mixture therof.
Process of preparing a surface active liquid, hydroxyl-containing mixed ester which comprises contacting:
- (a) 1 mole of glycerine, trimethylolpropane or pentaerythritol or a mixture thereof, and
- (b) 1 to 2 moles of a saturated, branched, aliphatic monocarboxylic acid of 16.degree. to 26.degree. C atoms, or a mixture thereof,
- at 100.degree. to 250.degree. C at a pressure and for a time sufficient for formation of a hydroxyl-containing partial ester of (a) and (b) and thereafter contacting the partial ester with
- (c) 0.1 to 0.9 moles of aliphatic straight chain or branched dicarboxylic acid of 3 to 10 carbon atoms or an anhydride thereof, or a mixture thereof
- at 100.degree. to 240.degree. C, at a pressure and for a time sufficient for condensation of the partial ester and until an acid number under 5 is reached, to form said mixed ester by said condensation.
Process of preparing a surface active liquid, hydroxylcontaining mixed ester which comprises contacting:
- (a) 1 mole of glycerine, trimethylolpropane or pentaerythritol or a mixture thereof, and
- (b) 1 to 2 moles of a saturated, branched, aliphatic monocarboxylic acid of 16 to 26.degree. C atoms, or a mixture thereof, and
- (c) 0.1 to 0.9 moles of aliphatic straight chain or branched dicarboxylic acid of 3 to 10 cations or an anhydride thereof, or a mixture thereof,
- at 100.degree. to 240.degree. C, at a pressure and for a time sufficient for condensation to form said mixed ester and until an acid number under 5 is reached.
Dependencies are inferred from the claim text.