Patent · US Expired

Manufacture of polyalkylenepolyamines

US4324724A · kind A · utility

4Cited by

3References

5Claims

0Family size

Assignee

BASF SE

Inventors

Hans Mueller · Frankenthal (Pfalz), DE
Klaus Wulz · Lambsheim, DE
Karl-Heinz Beyer · Bischofswerda, DE
Werner Streit · Worms, DE

Key dates

Filing date	Oct 2, 1978
Grant date	Apr 13, 1982
Priority date	—
Expiry date	Oct 2, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10M169/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the manufacture of polyalkylenepolyamines by reacting a primary or secondary amine with a compound of the formula ##STR1## where X is --Cl, --Br, or --OSO.sub.3 H and R.sup.1 and R.sup.2 are H or saturated alkyl of 1 to 4 carbon atoms, and with at least the stoichiometric amount, based on the compound of the formula I, of an aqueous solution, of from 15 to 45 percent strength, of an alkali metal hydroxide or alkaline earth metal hydroxide, at from 60.degree. to 200.degree. C., cooling the reaction mixture to a temperature at which 2 aqueous phases form, and separating off the upper phase, containing polyalkylenepolyamnines. The rate of reaction can be increased by adding catalytic amounts of compounds which initiate the polymerization of alkyleneimines.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.