Ciba Specialty Chemicals Corporation

Ciba-geigy Corporation

Basf Se Corporation

Jürg Zingg

Peter Nesvadba

Samuel Evans

Christoph Krohnke

Jean-Roch Pauquet

Helmut Linhart

Udo Quotschalla

Ronald Salathe

Philipp Walter

Isabel Annelies Marika Hirschmuller

David Hild

Jürgen Link

The present invention relates to a method of protecting organic material, especially from the pharmaceuticals and foodstuffs sectors, against light, wherein at least one pigment of formula (1), (2), (3), (4), (5), (6) and (7) and (8) as defined in claimand optionally a UV absorber as well as optionally further pigments and/or colorants is applied to or incorporated in a carrier material and the carrier material so treated is positioned between the light source and the organic material to be protected. 

Method of protecting organic material from light

A method for improving the dimensional stability of a shaped article made of a composition containing a nucleated polymeric material, which comprises adding to the polymeric material a divalent metal alcoholate of a polyhydroxy-(C-Calkane) before shaping.

Polyolefin articles

Stabilized thermoplastic polymer, especially polyolefin compositions comprising a flame retardant selected from

Weatherability of flame retardant polyolefin

Described are compositions comprising (a) 25 to 99% of organic phosphite or phosphonite, based on the total weight of the composition, (b) an effective stabilizing amount of organic amine, and (c) an effective stabilizing amount of acid-binding metal salt, wherein said composition comprises no organic polymers or alkali metal phosphates as further components, as well as a process for stabilising organic phosphites or phosphonites against hydrolysis by addition of organic amine and acid-binding metal salt. The compositions are distinguished by their excellent stability to hydrolysis and have good storage stability even at high atmospheric humidity. The novel compositions and process products can be used with advantage as stabilisers for organic material against the harmful action of heat, oxygen and/or light.

Enhancement of the storage stability of organic phosphites and

The invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.

3-arylbenzofuranones as stabilizers

3-arylbenzofuranones

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Reinach, Switzerland

Jürg Zingg