Ciba Specialty Chemicals Corporation

Basf Se Corporation

Werner Baschong

Peter Fankhauser

Sébastien Mongiat

Gerd Heinemann

Helmut Luther

Barbara Wagner

Bernd Herzog

Andreas Buthe

Reinhold Öhrlein

Dietmar Ochs

Oliver Reich

Dietmar H&uuml;glin

Compounds of the formulae and selected hindered nitroxyl, hydroxylamine and hydroxylamine salt compounds such as the compound of the formula 

Anti-radical agents

The present invention relates to derivatives of the 1H-pyrano[4,3-b]benzofuran-1-one structure and their nitrogen analogues which possess powerful antioxidant properties combined with a highly effective UV absorbing functionality in one molecule. These compounds are especially useful in cosmetical and dermatological formulations.

Coumestan-like antioxidants and UV absorbants

The use is described of compositions comprising (a) (&#x2212;)-guaiol, (b) further skin-lightening active substance(s) and, optionally, (c) one or more UV-A and/or UV-B absorbers as melanogenesis inhibitors and for skin-lightening.

Use of guaiol for treating the skin

A description is given of the use of polyanionic and polyanionically-derivatised natural polysaccharides or non-derivatised natural polysaccharides for inhibiting alkaline phosphatase and of oral compositions for preventing bacterial plaque, which comprises (a) 0 to 10% by weight of at least one linear molecularly dehydrated polyphosphate salt, and (b) 0.0001 to 5% by weight of a polyanionic or polyanionically-derivatised natural polysaccharide.

Use of polyanionic and polyanionically-derivatised natural polysaccharides for inhibiting alkaline phosphatase

Use of mixtures of micropigments for preventing tanning and for lightening skin and hair

Growing community of inventors

Basel, Switzerland

Werner Baschong