Aqueous photoprotective compositions comprising diblock or...

Details Aqueous photoprotective compositions comprising diblock or... Aqueous photoprotective compositions comprising diblock or...

2008-01-08

2008-01-08

Dodson, Shelley A. (Department: 1616)

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

C424S060000, C424S400000, C424S401000

Reexamination Certificate

active

07316809

ABSTRACT:
Photoprotective compositions, e.g., oil-in-water or water-in-oil emulsions, well suited for the photoprotection of the skin, lips and/or hair against the damaging effects of UV-radiation, comprise at least one aqueous phase, at least one water-soluble or water-dispersible polymer having a diblock structure A-B or a triblock structure B-A-B wherein A is an ionic water-soluble polymeric block and B is a hydrophobic polymeric block and at least one system screening out UV radiation, said at least one screening system comprising at least one 4,4-diarylbutadiene UV-A screening agent.

REFERENCES:
patent: 4804531 (1989-02-01), Grollier
patent: 6093385 (2000-07-01), Habeck et al.
patent: 2003/0059391 (2003-03-01), L'Alloret
patent: 2003/0059392 (2003-03-01), L'Alloret
patent: 7-330567 (1995-12-01), None
patent: 2001-288233 (2001-10-01), None
patent: 02/49596 (2002-06-01), None
French Search Report Issued in French Priority Counterpart FR 03/04646, on Dec. 10, 2003, 2 pages.
Tamura, Hiroaki, Fragrance Journal, Aug. 1998, pp. 79-83.
Japanese Notice of Rejection issued in counterpart Japanese Patent Application No. 2004-119675 issued Jun. 21, 2005, 3 pages.

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