Salts of polymeric basic amides
AssigneeSandoz Ltd.
InventorsRichard Hochreuter, James R. Runyon
Life of this patent
Estimating the term…
Abstract
The invention concerns polymeric basic amides produced by reacting a polymer containing carboxyl groups and a polyamine which contains an alkyl or alkenyl radical of 11 to 22 carbon atoms, at least one ethylene or propylene radical and at least two nitrogen atoms, of which at least one forms a primary or secondary amino group, at a temperature over 100.degree. C., which in the form of their acid salts are water-dispersible and useful textile softeners.
Claims14
A water dispersible polymeric amide salt produced by reacting, at a temperature above 100.degree. C., (1) a polymer containing carboxyl groups and selected from the group consisting of oxidized polyethylene having a molecular weight from 700 to 7000 and an acid number from 10 to 120 and copolymers formed by copolymerizing ethylene and an unsaturated aliphatic carboxylic acid of 3 to 8 carbon atoms, which copolymers have a molecular weight of from 1000 to 6000, an acid number of 20 to 100 and a molecular proportion of acid component in the range 0.2 to 24% with (2) a polyamine of the formula, ##STR4## in which R.sub.1 and R.sub.2 are each, independently, hydrogen or unsubstituted alkyl of 1 to 3 carbon atoms,
- R' is a linear or branched unsubstituted alkyl or alkenyl radical of 11 to 21 carbon atoms,
- n is an integer 2 or 3, and
- y is an integer from 1 to 3
- and reacting the resulting polymeric basic amide with an inorganic or organic acid suitable for salt formation.
Dependencies are inferred from the claim text.