COMPOSITIONS CONTAINING CATIONICALLY SURFACE-MODIFIED MICROPARTICULATE CARRIER FOR BENEFIT AGENTS
First Claim
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1. A coated microparticulate composition comprising a microparticulate;
- wherein the microparticulate comprises a benefit agent; and
wherein the microparticulate is coated with;
a Type-1 Polymer, wherein the Type-1 Polymer comprises a cationic polymer with a cationic atom content greater than about 3 wt. % and a weight average molecular weight less than about 800,000 Dalton; and
a Type-2 Polymer, wherein the Type-2 Polymer comprises a cationic polymer with a cationic atom content less than about 3 wt. % and a weight average molecular weight greater than about 1,000,000 Dalton.
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Abstract
A coated microparticulate composition comprising a microparticulate; wherein the microparticulate comprises a benefit agent; and wherein the microparticulate is coated with: a Type-1 Polymer, wherein the Type-1 Polymer comprises a cationic polymer with a cationic atom content greater than about 3 wt. % and a weight average molecular weight less than about 800,000 Dalton; and a Type-2 Polymer, wherein the Type-2 Polymer comprises a cationic polymer with a cationic atom content less than about 3 wt. % and a weight average molecular weight greater than about 1,000,000 Dalton.
113 Citations
40 Claims
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1. A coated microparticulate composition comprising a microparticulate;
- wherein the microparticulate comprises a benefit agent; and
wherein the microparticulate is coated with;a Type-1 Polymer, wherein the Type-1 Polymer comprises a cationic polymer with a cationic atom content greater than about 3 wt. % and a weight average molecular weight less than about 800,000 Dalton; and a Type-2 Polymer, wherein the Type-2 Polymer comprises a cationic polymer with a cationic atom content less than about 3 wt. % and a weight average molecular weight greater than about 1,000,000 Dalton. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
- wherein the microparticulate comprises a benefit agent; and
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29. A method of making a coated microparticulate comprising
admixing a sufficient amount of a Type-1 Polymer with a microparticulate to raise a potential of an aqueous dispersion of the admixed Type-1 Polymer and microparticulate to at least 65 mV when measured at a concentration of about 0.1 wt. % microparticulate in water; - and admixing a Type-2 Polymer with the microparticulate, wherein the Type-1 Polymer has a cationic nitrogen content of at least about 3 wt. % and a weight average molecular weight of less than about 800,000 Dalton, and wherein the Type-2 Polymer has a cationic nitrogen content of less than about 3 wt. % and a weight average molecular weight of greater than about 1,000,000 Dalton.
- View Dependent Claims (30, 31, 32, 33, 34)
- 35. A microparticulate coating composition comprising a polymer mixture, wherein the polymer mixture consists of a Type-1 Polymer and a Type-2 Polymer, and wherein the polymer mixture comprises about 50 wt. % to about 99 wt. % of the Type-1 Polymer and about 1 wt. % to about 50 wt. % of the Type-2 Polymer, based on the total weight of the polymers in the mixture, wherein the Type-1 Polymer has a cationic nitrogen content of at least about 3 wt. % and a weight average molecular weight of less than about 800,000 Dalton, and wherein the Type-2 Polymer has a cationic nitrogen content of less than about 3 wt. % and a weight average molecular weight of greater than about 1,000,000 Dalton.
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39. A method of applying a benefit agent to a substitute comprising
contacting a substrate with coated microparticulate composition, and rinsing the substrate with water; -
wherein the coated microparticulate comprises a benefit agent or a carrier containing a benefit agent coated with a Type-1 Polymer with a cationic nitrogen content of at least about 3 wt. % and having a weight average molecular weight of less than about 800,000 Dalton, and coated with a Type-2 Polymer having a cationic nitrogen content in a range of about 0.1 wt. % to about 3 wt. % and having a weight average molecular weight of at least about 1,000,000 Dalton, and wherein the coated microparticulate composition has an increased deposition and an increased retention on the substrate as compared to a composition having the same weight percentage microparticulate selected from the group consisting of a first composition consisting essentially of a microparticulate coated with only a Type-1 Polymer;
a second composition consisting essentially of a microparticulate coated with only a Type-2 Polymer. - View Dependent Claims (40)
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Specification