C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
8/93.14, 8/93.16
C07D 233/04 (2006.01) D06M 13/46 (2006.01) D06M 13/473 (2006.01)
Patent
CA 1086750
Abstract of the Disclosure The invention described herein is, in one aspect, a process for making quaternary imidazolinium salts, essentially free of amines, amine salts and alkoxylated forms of the imidazolinium salts, having the following structure: Image wherein R and R1 are aliphatic or cycloaliphatic hydrocarbon groups having from about 10 to about 22 carbon atoms, R2 is an alkyl group having from 1 to about 8 carbon atoms or an aralkyl group, R3 and R4 are hydrogen, hydroxy, short chain alkyl having from 1 to about 4 carbon atoms or hydroxy short chain alkyl having from l to about 4 carbon atoms; D is optional and, where present, is selected from the group con- sisting of Image wherein n is a number from 1 to about 6, and X is an anion; said process comprising the following steps: A. Forming a mixture of an actuating or esterifying agent having an aliphatic or cycloaliphatic hydrocarbon group i containing from about 10 to about 22 carbon atoms associat- ed with each acyl group and an alkylene or polyalkylene polyamine having two or three amino groups, one of which is a primary or secondary amino group in the 2 position to a primary amino group, the molar ratio of acyl groups to primary amine and hydroxyl groups being from about 0.33 to about 1.5:1; B. Reacting the mixture of step A for a period of from about 3 to about 24 hours at a temperature of from about 100°C to about 250°C and then drawing a vacuum of from about 0.4 mm mercury to about 10 mm mercury for from about 1 to about 8 hours to form an imidazoline product in a mix- ture with starting materials and intermediates; C. Treating the imidazoline product mixture of step B with an alkoxylating agent in an amount equal to from about 1% to about 5% by weight of the imidazoline product mixture while maintaining the temperature at from about 80°C to about 140°C for a period of from about 0.5 to about 8 hours; and D. Treating the mixture of step C with an alkylating agent in an amount such that the molar ratio of alkylating agent to imidazoline is at least 1:1. Also disclosed are fabric conditioning compositions containing the above-defined quaternary imidazolinium conditioning agents. Aqueous liquid fabric conditioning compositions according to this invention possess desirable stability and conditioning properties. ii
277088
Nirschi Joseph P.
Pracht Hans J.
Gowling Lafleur Henderson Llp
The Procter & Gamble Company
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