Ciba Specialty Chemicals Corporation

Basf Se Corporation

Peter Michaelis

Dieter Reinehr

Georges Metzger

Thomas Schäfer

Helmut Luther

Vien V Toan

Christophe Bulliard

Stéphane Biry

Vien Van Toan

The present invention provides compounds having the formula: in which R is hydrogen, hydroxy, halogen, C-C-alkyl, C-Ccycloalkyl, C-Calkenyl, C-Calkynyl, C-C-alkoxy, C-Ccycloalkoxy, C-Calkenoxy, C-Calkynoxy or C-Caralkyl; Rand R, independently, are hydrogen, C-Calkyl, C-Ccycloalkyl, C-Caralkyl, &#x2014;C(&#x2550;O)&#x2014;R(in which Ris C-Calkyl, C-Calkyl interrupted by 1 to 6 oxygen atoms, hetero-substituted C-Calkyl, C-Ccycloalkyl, C-Calkenyl, C-Calkynyl, C-C-alkoxy, C-Ccycloalkoxy, C-Calkenoxy, C-Calkynoxy, C-Caryl, C-Caryloxy or C-Caralkyl), or &#x2014;C(&#x2550;O)&#x2014;NH&#x2014;Rin which Rhas its previous significance; and Ris hydrogen, halogen, hydroxy, C-Calkyl, C-Ccycloalkyl, C-Calkenyl, C-Calkynyl, C-C-alkoxy, C-Ccycloalkoxy, C-Calkenoxy, C-Calkynoxy, phenyl, C-Caralkyl or &#x2014;N(R)(R) in which Rand Rhave their previous significance, or Rand Rtogether form a C-Cmembered ring. The new triphenyltriazine compounds have improved absorption spectrum characteristics and superior resistance to exposure to UV light, relative to known triphenyltriazine compounds.

Amino- and hydroxysubstituted triphenyl-s-triazines as stabilizers

Novel compounds of formula I are described whereinE corresponds to the formula or to the formula and the radicals R, R, R, R, R', R&#x2032;and R&#x2032;are as defined in claim. Compounds of formula I are suitable for stabilizing organic material, especially plastics materials, surface-coatings, cosmetic preparations, sun protection agents or photographic material, against damage by light, oxygen and/or heat.

Naphthyltriazines as stabilizers for organic material

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Geispitzen, France

Peter Michaelis