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US 3,974,076 AGranted
Fabric softener
AssigneeThe Procter & Gamble Company
InventorsYpe Wiersema, Ross Dale Rieke
Life of this patent
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Abstract
Liquid fabric softening compositions comprising a water-insoluble quaternary ammonium softener compound, an ethoxylated nonionic surfactant, an alkyl alcohol and other optional components, said compositions being characterized by the small particle size of the softener component which results in more efficient distribution and improved softening activity.
Claims7
A fabric softener composition, comprising:
- a. a conditioning amount of dispersed water-insoluble softener component particles having a size such that about 40% to about 50% of the particles pass through a filter having an average pore diameter of about 0.5 microns, said particles comprising a mixture of
- i. from about 2 parts to about 10 parts by weight of a substantially water-insoluble quaternary ammonium compound of the formula ##EQU1## wherein R.sub.1 and R.sub.2 are each hydrocarbyl groups containing from about 1 to about 25 carbon atoms, the sum of R.sub.1 and R.sub.2 being at least 22 carbon atoms, R.sub.3 and R.sub.4 are each hydrocarbyl groups containing from about 1 to about 6 carbon atoms, X is an anion and n is an integer from 1 to about 3;
- ii. from about 0.1 part to about 2 parts by weight of a substantially water-insoluble straight chain alcohol containing from about 8 to about 20 carbon atoms, the weight ratio of said quaternary compound to said alcohol being in the range of from about 100:1 to about 3:1;
- b. from about 0.1% to about 2.0% by weight of a nonionic surfactant containing a lipophilic hydrocarbyl group of from about 6 to about 20 equivalent carbon atoms and from about 5 to about 15 ethylene oxide moieties;
- c. from about 0.1% to about 3% by weight of a water-soluble ethoxylated quaternary ammonium compound of the formula ##EQU2## wherein R is a substantially straight chain alkyl group of from about 14 to about 20 carbon atoms;
- x and y are each integers of from 1 to 5, the sum of x + y being from about 2 to about 6;
- X is an anion and n is an integer from 1 to 3;
- and
- d. the balance comprising a water-soluble liquid carrier.
6 more elements
Dependencies are inferred from the claim text.