Photostable cosmetic screening composition containing a UV-A screening agent and an alkyl .beta., .beta.-diphenylacrylate or .alpha.-cyano-.beta. , .beta.-diphenylacrylate

  • US 5,587,150 A
  • Filed: 06/05/1995
  • Issued: 12/24/1996
  • Est. Priority Date: 02/14/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A photostable cosmetic screening composition for protection of the human epidermis against ultraviolet rays of wavelengths between 280 and 380 nm, which comprises, in a cosmetically acceptable vehicle containing at least one fatty phase, 1 to 5% by weight of a dibenzoylmethane derivative and at least 1% by weight of an alkyl β

  • , β

    -diphenylacrylate or a α

    -cyano-β



    -diphenylacrylate of formula;

    ##STR2## in which R1 and R'"'"'1, which may be identical or different, represent a hydrogen atom, a straight- or branched-chain C1 -C8 alkoxy radical or a straight- or branched-chain C1 -C4 alkyl radical, R1 and R'"'"'1 being in the para or meta position;

    R2 represents a straight- or branched-chain C1 -C12 alkyl radical; and

    R3 represents hydrogen atom or a --CN radical, the mole ratio of the compound of formula (I) to the dibenzoylmethane derivative being not less than 0.8.

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