Fabric softening composition
AssigneeLevers Brothers Company, Division of Conopco, Inc.
InventorsSimon R. Ellis, Graham A. Turner
Life of this patent
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Abstract
A fabric softening composition comprising a water insoluble cationic fabric softening agent and a nonionic stabilizing agent wherein the water insoluble cationic fabric softening agent is a quaternary ammonium material and the nonionic stabilizing agent is preferably selected from a predominantly linear C.sub.8 to C.sub.22 alcohol alkoxylated with 10 or more moles of alkylene oxide. The nonionic stabilizing agent may also be a C.sub.10 to C.sub.20 alcohol or mixtures thereof. For high temperature stability the nonionic stability agent is an alkoxylated alcohol having a clear phase at a 1% concentration in water somewhere in the range of 0.degree. C. and 45.degree. C. and a Krafft point of less than 30.degree. C.
Claims7
A process for making a liquid fabric softening composition comprising the steps of:
- (a) mixing and heating together 1-80 wt. % of a water insoluble cationic fabric conditioning material of formula ##STR3## wherein R.sub.1 is independently selected from C.sub.1-4 alkyl, a hydroxyalkyl group containing from I to 4 carbon atoms, or a benzyl group;
- each R.sub.2 is independently selected from C.sub.8-28 alkyl or alkenyl groups;
- and
- n is an integer from 0 to 5, and
- 0. 1 to 10 wt.% of a nonionic stabilizing agent comprising a predominantly linear C.sub.8-C.sub.22 alcohol alkoxylated with 10 to 20 moles of alkylene oxide to a melt;
- and
- (b) dispersing the melt in water to provide a fabric conditioning composition which is temperature stable at a temperature of less than 10.degree. C. and greater than 25.degree. C.
A fabric conditioning composition comprising:
- (a) 1-80% of a water insoluble cationic fabric conditioning material of formula:
- ##STR4## wherein R.sub.1 is independently selected form C.sub.1-4 alkyl, a hydroxyalkyl group containing from 1 to 4 carbon atoms, or a benzyl group;
- each R.sub.2 is independently selected from C.sub.8-28 alkyl or alkenyl groups;
- and
- n is an integer from 0 to 5;
- and
- (b) 0.1 to 10% of a nonionic stabilizing agent comprising a predominantly linear C.sub.8-C.sub.22 alcohol alkoxylated with 10 to 20 moles of alkylene oxide to provide a fabric conditioning composition which is temperature stable at a temperature of less than 10.degree. C. and greater than 25.degree. C.
Dependencies are inferred from the claim text.