Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Reexamination Certificate
2007-10-02
2007-10-02
Sample, David R. (Department: 1755)
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
C106S031650, C106S031860, C106S287160, C106S481000
Reexamination Certificate
active
11100484
ABSTRACT:
This invention relates to a surface-modified pigment having at least two surface-active agents chemically immobilized onto the surface of the pigment. The first surface-active agent has an HLB of about 10 or more, the second surface-active agent has an HLB of 9 or less, and the difference in HLB between the first and second surface-active agents is at least about 5. The surface-modified pigments are self emulsifying and are applicable for use in water-based cosmetic systems and toiletry products.
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Hays, B.G., et al., Surface Treatment of Organic Pigments for Printing Ink Applications, American Inkmaker, MacNair-Dorland, New York, NY, US, vol. 62, No. 6, Jun. 1984, pp. 28-50.
Kawasaki Yoshiaki
Kishida Shigeru
Le Page Mark G.
Zavadoski William
Matthews Abraham M.
Sample David R.
U.S. Cosmetics Corporation
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