Cosmetic compositions comprising photostabilized dibenzoylmethane compounds and 2-pyrrolidinone-4- carboxy esters
申请人:Richard Hervé
公开号:US20100183529A1
公开(公告)日:2010-07-22
Photostable cosmetic compositions contain, formulated into a cosmetically acceptable vehicle, at least one UV-screening system that includes:
(a) at least one dibenzoylmethane compound, and
(b) at least one 2-pyrrolidinone-4-carboxy ester compound having the following formula (I):
in which:
R
1
is a linear or branched C
1
-C
20
alkyl radical, and
R
2
is a linear or branched C
1
-C
20
alkyl radical which optionally includes a C
5
-C
6
ring member, the phenyl radical, the benzyl radical or the phenethyl radical.
COSMETIC AND/OR DERMATOLOGICAL COMPOSITION CONTAINING A MEROCYANINE DERIVATIVE COMPRISING SPECIFIC POLAR GROUPS CONSISTING OF HYDROXYL- AND ETHER-FUNCTIONALITIES
申请人:Richard Herve
公开号:US20140294743A1
公开(公告)日:2014-10-02
The present invention relates to a cosmetic and/or dermatological composition comprising in a physiologically acceptable medium at least one merocyanine derivative of formula (1) or (2) and/or its E,E-, E,Z- or Z,Z-geometrical isomer forms: comprising specific polar groups consisting of hydroxyl- and ether-functionalities. Another object of the present invention relates to a cosmetic process for controlling and/or improving the darkening of the skin under exposure to UV radiation and the homogeneity of the colour of the complexion which comprises the application onto the skin of a cosmetic composition as above defined. Another object of the present invention relates to a cosmetic process for protecting the keratinic materials and particularly the skin against photo-ageing which comprises the application onto the keratinic material of a cosmetic composition as above defined.
Use Of N-Substituted 2-Pyrrolidone-4-Carboxylic Acid Esters And Solvents
申请人:Wacker Andreas
公开号:US20130217892A1
公开(公告)日:2013-08-22
The invention relates to the use of one or more N-substituted 2-pyrrolidone-4-carbonic acid esters of formula (1), where R1 and R2 independently represent linear, branched, or cyclic C1-C6 alkyl, as (a) solvent(s). Said compounds can be used as solvents in industrial applications, e.g. for the production of varnishes and paints, in chemical syntheses, for cleaning or degreasing, in petrochemical processes, in the electronics and photovoltaic industries, or in pesticide preparations, for example.
Cosmetic compositions comprising 4-carboxy-2-pyrrolidinone esters and triazine lipophilic UV-screening agents
申请人:Richard Hervé
公开号:US20100183530A1
公开(公告)日:2010-07-22
UV-screening compositions, formulated into a cosmetically acceptable medium, contain at least one ester solvent derived from 4-carboxy-2-pyrrolidinone, of formula (I) below:
in which:
R
1
is a linear or branched C
1
-C
20
alkyl radical,
R
2
is a linear or branched C
1
-C
20
alkyl radical that may contain a C
5
-C
6
ring member, the phenyl radical, the benzyl radical or the phenethyl radical, and at least one triazine-type lipophilic UV-screening agent.
COSMETIC COMPOSITIONS COMPRISING AN ESTER DERIVED FROM 4-CARBOXY-2-PYRROLIDINONE AND A MEROCYANIN SCREENING AGENT; USE OF SAID DERIVATIVE AS A SOLVENT FOR A MEROCYANIN SCREENING AGENT
申请人:Richard Herve
公开号:US20120269749A1
公开(公告)日:2012-10-25
The present invention relates to a composition comprising, in a cosmetically acceptable medium, at least one ester derived from 4-carboxy-2-pyrrolidinone, of formula (I) below:
in which:
R
1
denotes a linear or branched C
1
-C
20
alkyl radical,
R
2
denotes a linear or branched C
1
-C
20
alkyl radical that may contain a C
5
-C
6
ring, the phenyl radical, the benzyl radical or the phenethyl radical,
and at least one merocyanin-type UV screening agent.
The present invention also relates to the use of at least one ester derived from 4-carboxy-2-pyrrolidinone, of formula (I), as defined above, in a composition comprising, in a cosmetically acceptable medium, at least one merocyanin-type UV screening agent, as a solvent for said merocyanin screening agent, in and/or as an agent for improving the solubility of said merocyanin screening agent in said composition or with the aim of improving the sun protection factor.