Water-in-oil emulsion foundation

Details Water-in-oil emulsion foundation Water-in-oil emulsion foundation

2003-05-01

2010-12-28

Richter, Johann R (Department: 1616)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

C424S401000

Reexamination Certificate

active

07858104

ABSTRACT:
A foundation composition in the form of a water-in-oil emulsion comprising a fatty phase; an aqueous phase; at least one silicone surfacant chosen from C8-C22alkyl dimethicone copolyols; and at least 5% by weight, relative to the total weight of the composition, of hydrophobic coated pigments; provided that the composition is free of polyglyceryl-4 isostearate or comprises polyglyceryl-4 isostearate in a quantity such that the weight ratio of the C8-C22alkyl dimethicone copolyol to the polyglyceryl-4 isostearate is greater than or equal to 2:1, wherein the foundation composition can exhibit good stability at room temperature and can be easy to apply to the skin.

REFERENCES:
patent: 5879668 (1999-03-01), Hanna et al.
patent: 5942213 (1999-08-01), Bara et al.
patent: 5976510 (1999-11-01), Cernasov et al.
patent: 6638519 (2003-10-01), Lorant
patent: 2003/0228339 (2003-12-01), El-Nokaly et al.
patent: 2005/0008592 (2005-01-01), Gardel et al.
patent: 1 086 687 (2001-03-01), None
patent: 1 097 703 (2001-05-01), None
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English language abstract of EP 1 086 687, Mar. 28, 2001.
English language abstract of EP 1 097 703, May 9, 2001.
English language abstract of FR 2 776 183, Sep. 24, 1999.
Leon M. Prince Ed, “Microemulsions Theory and Practice,” Academic Press, 1977, pp. 21-32.

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