Lubricating shaving aid
AssigneeBIC Corporation
InventorsBarry W. Chadwick, Aiying Wang, Kathryn Bradanini
Life of this patent
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Abstract
The present invention is directed to a lubricating shaving aid on a shaving razor or a shaving cartridge to reduce frictional drag between a razor blade edge and a shaver's skin and to provide a lubricating film on the shaver's skin during wet shaving. The lubricating shaving aid comprises a water soluble polyacrylamide and a water insoluble polyurethane. The invention further discloses a method for making the same.
Claims19
A razor cartridge comprising:
- a blade seat;
- a razor blade;
- a cap;
- and
- a shaving aid affixed to said cartridge, said shaving aid formed by drying an aqueous dispersion of a water soluble component and a water insoluble component and comprising a structure in the form of a solid dispersion of said water insoluble component in said water soluble components;
- wherein said structure permits uniform release of said water insoluble component as said water soluble component dissolves upon exposure of said shaving aid to water.
A shaving aid for a razor cartridge, said shaving aid formed by drying an aqueous dispersion of a water insoluble component in a water soluble component and comprising a structure in the form of a solid dispersion of said water insoluble component in said water soluble component, wherein the structure permits uniform release of said water insoluble component as said water soluble component dissolves upon exposure of said shaving aid to water.
The shaving aid of claim 23, wherein said shaving aid further includes at least one agent selected from the group consisting of a biocide, a coloring agent, and N-methyl-2-pyrrolidone.
A shaving aid for a razor cartridge, wherein said shaving aid comprises a structure in the form of a solid dispersion of a water insoluble component dispersed in a water soluble component, wherein said structure permits release of both said water soluble component and said water insoluble component upon exposure of said shaving aid to water to dissolve said water soluble component.
Dependencies are inferred from the claim text.