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US 9,173,824 B2Granted
Mascara and applicator
AssigneeThe Procter & Gamble Company
InventorsHaiminot Bekele, Gwen Trinidad Acierto Cabanez
Life of this patent
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Abstract
A semi-permanent mascara product that includes a supply of a semi-permanent mascara composition disposed in a container and a twisted-wire brush for applying the mascara to the eyelashes of a user. The combination of the semi-permanent mascara and twisted-wire brush provides improved eyelash separation and reduced clumping versus the same mascara composition and an unsuitable molded plastic brush.
Claims1
A mascara product comprising:
- a. a container for storing and dispensing mascara;
- b. a liquid mascara composition disposed in the container, the liquid mascara composition comprising
- i. from about 1-60% by weight of black iron oxide particles as a colorant
- ii. from 10-80% by weight of isododecane as the volatile carrier
- iii. from 15-35% of mixture of tall oil glycerides and pentaerythrityl hydrogenated rosinate as film-formers
- iv. from 1-25% of a disteardimonium hectorite having a diameter less than 10 microns as a thickener wherein said liquid mascara composition has a volume concentration of solids that is below the critical pigment volume concentration, and the viscosity of said liquid mascara composition is in the range of 250,000-350,000 cps as measured by Brookfield brand RTV viscometer using a TE spindle at 10 rpm and 25° C., and said liquid mascara composition is free of wax
- c. a twisted-wire brush applicator that includes a between 400 and 800 fiber bristles securely joined to a twisted-wire core, the twisted-wire brush applicator including a handle and a stem joining the handle to the twisted-wire core, the handle being removably and reattachably joined to the container;
- d. liquid wherein the mascara composition has a Delta L value of less than 2.5 according to the Rub Test and the mascara product has a Weighted Average Thickness value at five strokes of less than 30 according to the Weighted Average Thickness test.
5 more elements
Dependencies are inferred from the claim text.