Porous, dissolvable solid substrate and surface resident inorganic particulate perfume complexes
AssigneeThe Procter & Gamble Company
InventorsRobert Wayne Glenn, JR., Kathy Mary Kaufman
Life of this patent
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Abstract
The present invention relates to personal care compositions, especially those personal care compositions in the form of a personal care article that is a porous dissolvable solid substrate. The porous dissolvable solid substrate has a surface resident coating comprising an inorganic particulate perfume complex that can provide a consumer benefit.
Claims26
A personal care article comprising:
- a.) a porous dissolvable solid substrate comprising:
- i. from about 10% to about 75% of a surfactant;
- ii. from about 10% to about 50% water-soluble polymer;
- iii. from about 1% to about 30% plasticizer;
- and
- b.) a surface resident coating comprising from about 10% to about 100% of one or more inorganic particulate perfume complexes;
- wherein the ratio of the inorganic particulate to perfume in the complex is from about 0.5:1 to about 19:1, and wherein the ratio of the porous dissolvable solid substrate to the surface resident coating is from 110:1 to about 0.5:1.
A method for making a personal care article, the method comprising applying a surface resident coating comprising the inorganic particulate perfume complex in powdered form to a porous dissolvable solid substrate comprising from about 10% to about 75% of a surfactant, from about 10% to about 50% water-soluble polymer, and from about 1% to about 30% plasticizer.
A method for making a personal care article, the method comprising:
- (a) preparing a processing mixture comprising from about 10% to about 75% of a surfactant, from about 5% to about 35% water-soluble polymer, and from about 0.5% to about 20% plasticizer;
- (b) aerating the processing mixture by introducing a gas into the processing mixture to form an aerated wet mixture;
- (c) forming the aerated wet mixture into one or more desired shapes;
- (d) drying the aerated wet mixture to form a porous dissolvable solid substrate;
- and
- (e) applying a surface resident coating comprising the inorganic particulate perfume complex in powdered form to the porous dissolvable solid substrate.
Dependencies are inferred from the claim text.