Granted Patent B2

US 6,992,059 · App. 10/237,481 · Granted Jan 31, 2006

Abstract

Claims (15)

1. A fabric conditioning composition comprising:

(a) from 7.5 to 80% by weight of a ester-linked quaternary ammonium fabric softening material comprising at least one mono-ester linked component and at least one tri-ester linked component;

(b) from 0.01 to 10% by weight of a nonionic surfactant; and

(c) greater than 1.5 to 15% by weight of a fatty alcohol comprising hardened tallow alcohol, behenyl alcohol and mixtures thereof;

(d) perfume;

wherein the weight ratio of the mono-ester component of compound (a) to fatty alcohol (c) is about 3:1 to about 1:3; and

wherein said composition has improved storage stability.

2. A composition as claimed in claim 1 , further comprising an oily sugar derivative.

3. A method for treatment of fabrics comprising contacting the composition as claimed in claim 1 with fabrics in a laundry treatment process.

4. The composition as claimed in claim 1 , wherein said perfume is added to the composition during a cooling stage in a co-melting process after the temperature reaches less than about 50 deg. C. or less.

5. A composition as claimed in claim 1 wherein the quaternary ammonium cationic softening material is represented by formula (I):

wherein each R is independently selected from a C 5-35 alkyl or alkenyl group, R 1 represents a C 1-4 alkyl or hydroxyalkyl group or a C 2-4 alkenyl group, T is

n is O or an integer selected from 1 to 4, m is 1, 2 or 3 and denotes the number of moieties to which it refers that pend directly from the N atom, and X − is an anionic group.

6. The composition as claimed in claim 5 , wherein said anionic group comprises halides or alkyl sulfates.

7. The composition as claimed in claim 5 , wherein said anionic group is selected from the group consisting of chloride, methyl sulfate, and ethyl sulfate.

Assignments (8)