Preparation of high molecular weight, branched, acyclic polyalkyleneamines and mixtures thereof
AssigneeDow Global Technologies LLC
InventorsStephen W. King, Sadeka Onam
Life of this patent
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Abstract
A process for preparing high molecular weight, branched, acyclic polyalkyleneamines comprising transaminating a reaction mixture that includes at least a first polyalkyleneamine component that contains at least two non-tertiary amine groups separated from one another by a ternary or higher carbon atom and a second polyalkyleneamine component having the formula wherein x, y, and z are the same or different and are integers of from 1 to 10; a, b, c, d, e, and f are the same or different and are H or hydrocarbyl of from 1 to 10 carbon atoms; A, B, C, D, E, are the same or different and are H or hydrocarbyl of from 1 to 10 carbon atoms; provided that at least two of the amine groups are primary or secondary.
Claims15
A method of making a high molecular weight, branched, acyclic polyalkyleneamine-containing product comprising the steps of:
- (a) providing a reaction composition comprising a first linear polyalkyleneamine that has at least two non-tertiary amine groups separated by at least a ternary carbon atom spacing and at least one second polyalkyleneamine having the formula
- wherein x, y, and z are the same or different and are integers of from 1 to 10;
- a, b, c, d, e, and f are the same or different and are H or hydrocarbyl of from 1 to 10 carbon atoms, A, B, C, D, E, are the same or different and are H or hydrocarbyl of from 1 to 10 carbon atoms;
- provided that at least two of the amine groups are primary or secondary;
- and
- (b) subjecting the reaction composition to a transamination reaction in the presence of a hydrogenation/dehydrogenation catalyst to obtain the high molecular weight, branched, acyclic polyalkyleneamine-containing mixture.
Dependencies are inferred from the claim text.