Back to results
US 8,895,493 B2Granted
Stable non-aqueous liquid compositions comprising a cationic polymer in particulate form
AssigneeThe Procter & Gamble Company
InventorsRegine Labeque, Rajae Boulaich, Marc Jennewein
Life of this patent
Estimating the term…
Abstract
The need for a stable, compact composition providing improved fabric care benefit, that is also convenient to use, can be met by incorporating a cationic cellulose polymer into a non-aqueous composition, using a non-aqueous dispersant. Such compositions have good physical stability, with little or no clumping of the cationic polymer in particulate form.
Claims20
A non-aqueous liquid composition comprising:
- a) a cationic polymer in particulate form, wherein the cationic polymer is a cationic polysaccharide;
- b) a non-aqueous dispersant;
- c) less than 20% by weight of water;
- and
- d) spacer particles, wherein the spacer particles are anionically charged, wherein the spacer particles have an area average D90 diameter of less than 5 microns, wherein the spacer particles comprise a polyacrylate polymer or copolymer;
- wherein the cationic polymer is stably dispersed in the non-aqueous liquid composition, and wherein the non-aqueous liquid composition is enclosed in a water-soluble or dispersible film.
3 more elements
A non-aqueous liquid composition comprising:
- a. a cationic polysaccharide in particulate form;
- b. a non-aqueous dispersant;
- c. less than 20% by weight of water;
- d. spacer particles, wherein the spacer particles are anionically charged, and wherein the spacer particles have an area average D90 diameter of less than 5 microns, and wherein the spacer particles comprise a polyacrylate polymer or copolymer;
- wherein the cationic polysaccharide is stably dispersed in the non-aqueous liquid composition and further wherein the cationic polysaccharide is a cationic cellulose having the structural formula I:
- wherein:
- i. m is an integer from about 20 to 10,000
- ii. each R4 is H, and R1, R2, R3 are each independently selected from the group consisting of:
- H;
- C1-C32 alkyl;
- C1-C32 substituted alkyl, C5-C32 or C6-C32 aryl, C5-C32 or C6-C32 substituted aryl or C6-C32 alkylaryl, or C6-C32 substituted alkylaryl, and
- wherein:
- n is an integer selected from 0 to 10 and
- Rx is selected from the group consisting of:
- R5;
- wherein at least one Rx in said polysaccharide has a structure selected from the group consisting of:
- wherein A− is a suitable anion;
- q is an integer selected from 1 to 4;
- each R5 is independently selected from the group consisting of:
- H;
- C1-C32 alkyl;
- C1-C32 substituted alkyl, C5-C32 or C6-C32 aryl, C5-C32 or C6-C32 substituted aryl, C6-C32 alkylaryl, C6-C32 substituted alkylaryl, and OH;
- each R6 is independently selected from the group consisting of:
- H, C1-C32 alkyl, C1-C32 substituted alkyl, C5-C32 or C6-C32 aryl, C5-C32 or C6-C32 substituted aryl, C6-C32 alkylaryl, and C6-C32 substituted alkylaryl;
- each T is independently selected from the group:
- H,
- wherein each v in said polysaccharide is an integer from 1 to 10;
- the sum of all v indices in each Rx in said polysaccharide is an integer from 1 to 30;
- and in the last
- group in a chain, T is always an H;
- wherein the composition further comprises from about 0.01% to about 10% by weight of an external structuring system,
- and wherein the non-aqueous liquid composition is enclosed in a water-soluble or dispersible film.
29 more elements
Dependencies are inferred from the claim text.