| US 7,462,589 B2 | ||
| Delivery system for uniform deposition of fabric care actives in a non-aqueous fabric treatment system | ||
| Keith Homer Baker, Cincinnati, Ohio (US); Julie Ann O'Neil, Milan, Ind. (US); Victor Manuel Arredondo, West Chester, Ohio (US); Robb Richard Gardner, Cincinnati, Ohio (US); Jeffrey Scott Dupont, Cincinnati, Ohio (US); Mark Robert Sivik, Mason, Ohio (US); Jeffrey Jon Hopkins, West Chester, Ohio (US); and William Michael Scheper, Guilford, Ind. (US) | ||
| Assigned to The Procter & Gamble Company, Cincinnati, Ohio (US) | ||
| Filed on Jun. 24, 2004, as Appl. No. 10/876,032. | ||
| Claims priority of provisional application 60/547369, filed on Feb. 24, 2004. | ||
| Claims priority of provisional application 60/483392, filed on Jun. 27, 2003. | ||
| Prior Publication US 2005/0000027 A1, Jan. 06, 2005 | ||
| Int. Cl. C11D 9/36 (2006.01); C11D 1/82 (2006.01); C11D 3/50 (2006.01) | ||
| U.S. Cl. 510—285 [510/276; 510/101; 510/304; 510/347; 510/466; 510/407; 510/417; 510/432; 510/528; 510/400] | 11 Claims |
| 1. A delivery system for uniform and efficient deposition of fabric care active onto a fabric article in a non-aqueous fabric
treatment process, the delivery system comprising:
i.) a first phase comprising a cyclic siloxane solvent lipophilic fluid;
ii.) a second phase comprising a water carrier and a fabric care active which is a curable amino silicone soil release polymer
having a weight average molecular weight from about 1,000 to about 100,000;
and, optionally, a member selected from the group consisting of enzymes, perfumes, softening agents, finishing polymers, dye
transfer inhibiting agents, dye fixatives, UV protection agents, wrinkle reducing/removing agents, fabric rebuild agents,
fiber repair agents, perfume release and/or delivery agents, shape retention agents, fabric and/or soil targeting agents,
antibacterial agents, anti-discoloring agents, hydrophobic finishing agents UV blockers, brighteners, pigments, pill prevention
agents, temperature control technology, skin care lotions, fire retardants, and mixtures thereof, the carrier being substantially
insoluble in the lipophilic fluid, said water carrier comprising from about 0.01% to about 5% at weight of the composition;
and
iii.) an effective amount of an emulsifying agent sufficient to emulsify the composition such that the second phase forms
discrete particles; and
iv.) perfume-loaded cyclodextrin;
and wherein the second phase is in the form of droplets having a median particle diameter (χ50) of less than about 1000 microns; or wherein in a 1 mL sample of the delivery system, greater than about 0.95 weight fraction
of the second phase is in the form of droplets, each droplet having an individual weight of less than 1 wt %, of the total
mass of the second phase in the 1 mL sample of the delivery system.
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