Roche Vitamins Inc.

Givaudan Corporation

Other

Givaudan Roure (International) Sa

Hans Ulrich Gonzenbach

Alain Bringhen

Rolf Schwarzenbach

Dominique Sidrac

Ulrich Huber

Paul A Ochsner

Josianne Baudin

Magali Pochon

Peter Schudel

Bernhard Hostettler

Peter Gygax

Gilbert Pittet

Alain-Pierre Bonenfant

Pierclaudio Bernasconi

Josiane Baudin

Photostable, cosmetic light-screening compositions for the protection of the human epidermis and the hair against the ultraviolet rays of wavelengths between 290 and 400 nm comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.5 to about 5%, in particular about 1 to about 4% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.1% to about 20%, in particular about 0.5 to about 15% by weight, of a polymer UV-B filter of the benzylidene malonate silicone type

Light screening compositions

The invention relates to cosmetic light screening compositions containing

Cosmetic light screening composition

The invention relates to a cosmetic light screening composition containing, in an aqueous phase, about 0.5% to about 10 wt % of 2-phenylbenzimidazol-sulphonic acid or a salt thereof and at least one fatty phase, including about 1% to about 30 wt % of a linear or cyclic polysiloxane compound of the general formula Ia or Ib: ##STR1## wherein x is R or A;

Light screening composition containing a polysiloxane-type UV-B

The invention relates to a cosmetic light-screening composition for protecting human skin or human hair against ultraviolett radiation containing at least one compound of formula I ##STR1## wherein R.sup.1 represents a C.sub.1-8 straight or branched alkyl chain, and

Light screening compounds and compositions

The invention relates to a composition which comprises a dibenzoylmethane capable of absorbing UV-A radiation and a compound of formula I ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl or alkoxy containing 1 to 18 carbon atoms provided that R.sup.1 and R.sup.2 are not both hydrogen; and n is 1 or 2 in an amount effective to photostabilize the dibenzolymethane, and a cosmetically acceptable carrier, and to cosmetic light-screening compositions containing at least one of the above agents, the use of the cosmetic light-screening compositions for the protection of the human skin and human hair against the ultraviolet radiation of wavelengths between about 320 and 400 nm (UV-A) and optionally also between about 290 and 400 nm (UV-B).

Light-screening agents

Photostable, cosmetic light-screening composition, comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.1 to about 5%, in particular about 1 to about 3% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.5%, in particular about 0.5 to about 4.5% by weight, of a .alpha.-cyano-.beta.,.beta.-diphenyl-acrylate stabilizer, the mole ratio of the acrylate to the dibenzoylmethane derivative being less than 0.8, if the amount of the dibenzoylmethane is 1% or more, and, optionally, at least one conventional UV-B filter.

Light screening agents

The invention relates to cosmetic light-screening compositions comprising at least one fatty phase and

Photostable, cosmetic light-screening compositions for the protection of the human epidermis and the hairs against the ultraviolet rays of wavelengths between 320 and 400 nm, and between 320 and 400 nm respectively, comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.75 to about 5%, in particular about 1 to about 4% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.5% to about 2%, in particular about 0.5 to about 1% by weight, of a benzylidene type stabilizer of the general formula ##STR1## represents a bridged cyclic compound having the camphor (1,7,7-trimethyl-bicyclo�2.2.1!heptan-2-one), norcamphor (bicyclo�2.2.1!heptan-2-one), nopinone (6,6-dimethyl-bicyclo�3.1.1!heptan-2-one), pinocamphone (4,6,6-trimethyl-bicyclo�3.1.1!heptan-3-one), verbanone (4,6,6-trimethyl-bicyclo�3.1.1!heptan-2-one, thujone (1-isopropyl-4-methyl-bicyclo�3.1.0!hexan-3-one) or the 4,7-methano-octahydro-inden-5-one structure, and wherein R.sup.1, R.sup.2, R.sup.3 independently signify hydrogen, lower alkyl, lower alkoxy, or 2 adjacent radicals represent methylene-dioxy, and where, in case of the camphor derivatives, the ratio of the UV-A filter to the stabilizer is greater than ca. 1.5:1, preferably ca. 2 to ca. 6:1, and where 4-methylbenzylidene camphor is excluded from the scope of formula I, and, optionally, at least one conventional UV-B filter.

Novel odorants, namely acetals and ketals of alkyl-substituted oxo-tetralins and oxo-indanes, are described.

Acetals and ketals of oxo-tetralins and oxo-indanes

A novel process for the selective chlorination of p-tert-butyltoluene to p-tert-butylbenzyl chloride.

Selective chlorination of para-tertiary-butytoluene

Process for the manufacture of benzene derivatives

A process for treating 2-ethylhexyl p-methoxycinnamic acid ester is described. The process comprises heating, preferably distilling, the ester in the presence of a phenol to insure that the ester is considered Ames negative.

Process for treating 2-ethylhexyl p-methoxycinnamate in the presence of

This invention discloses novel odorant and/or flavoring compositions containing a substituted tetralin or indan of the general formula ##STR1## wherein R' represents --CN, --COOH.sub.2 R.sup.6 or --COOCH.sub.2 R.sup.8 ; R.sup.2 through R.sup.8 represents hydrogen or methyl and n represents 1 or 2. The invention is also concerned with those novel tetralins and indans disclosed herein.

Odorant and/or flavorant substances

Odorant substances

This invention discloses novel odorant and/or flavoring compositions containing a substituted tetralin or indan of the general formula ##STR1## wherein R' represents --CN, --COCH.sub.2 R.sup.6 or --COOCH.sub.2 R.sup.8 ; R.sup.2 through R.sup.8 represent hydrogen or methyl and n represents 1 or 2. The invention is also concerned with those novel tetralins and indans disclosed herein.

Growing community of inventors

Geneva, Switzerland

Hans Ulrich Gonzenbach