Ciba-geigy Corporation

Ciba Specialty Chemicals Corporation

Gerhard Reinert

Francesco Fuso

Gerd Holzle

Kurt Burdeska

Rudolf Polony

Dieter Reinehr

Gerhard Back

Andre Pugin

Jurgen Kaschig

Paul Dussy

Helmut Huber-Emden

Rolf Hilfiker

Rolf Tittmann

Hans Peter Harri

Rodolphe Vonderwahl

Mirella Miotto

Gregor Graf

Manfred Rembold

Georges Metzger

Hans U Schutz

Jorg Binz

Andres Schaub

Jean P Luttringer

Thys Bouwknegt

Frank Lohmann

Alfred Hohener

Willy Schurings

Italo Anceschi

Georges Metzer

Alois Kleemann

Jack Fallows

A description is given of novel stabilizer mixtures comprising at least one compound of the formula ##STR1## and at least one compound of the formula ##STR2## in which the variables are as defined in the claims. The novel stabilizer mixtures are suitable for stabilizing organic material, especially textile fiber materials, against damage by light, oxygen and heat.

Stabilizer combination

Process for increasing the sun protection factor of cellulosic fibre

Process for increasing the sun protection factor of cellulosic fiber

A description is given of novel stabilizer mixtures comprising at least one compound of the formula ##STR1## and at least one compound of the formula ##STR2## in which the variables are as defined in the claims. The novel stabilizer mixtures are suitable for stabilizing organic material, especially textile fibre materials, against damage by light, oxygen and heat.

The invention relates to the use of the compound of formula ##STR1## wherein the variables are as defined in the claims, for enhancing the sn protection factor of cellulosic fiber materials.

Use of hydroxybenzotriazoles for enhancing the sun protection factor of

The invention relates to compounds of formula ##STR1## wherein the variables have the meanings given in the claims. The compounds are suitable for use as UV absorbers for the photochemical stabilization of undyed, dyed or printed textile fiber materials and for enhancing the sun protection factor thereof.

UV absorbers, their preparation and the use thereof

The invention relates to compounds of formula ##STR1## wherein the variables have the meanings given in the claims. The compounds are suitable for use as UV absorbers for the photochemical stabilisation of undyed, dyed or printed textile fiber materials and for enhancing the sun protection factor thereof.

The invention relates to novel water-soluble triazines of formula ##STR1## wherein the variables are as defined in the claims, to a process for their preparation and to the use thereof for the photochemical and thermal stabilisation of dyed or undyed polyamide fiber materials.

Water-soluble triazines

A process is described for the photochemical and thermal stabilisation of undyed and dyed polyester fibre materials, which comprises treating said materials with a compound of formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.12 alkyl. Dyeings and prints of superior lightfastness and sublimation fastness on polyester and cellulose acetate are obtained by this process.

Process for the photochemical and thermal stabilization of undyed and

The invention relates to novel water-soluble antioxidants of formula ##STR1## wherein the variables are as defined in the claims, to a process for their preparation and to the use thereof for the photochemical and thermal stabilisation of dyed and undyed polyamide fibre materials.

Sulphonated phenolic triazine antioxidants for polyamide fibers

A process is described for the photochemical and thermal stabilisation of undyed and dyed or printed polyester fibre materials, which comprises treating said materials with a compound of formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,

Hydroxyphenyl-1,3,5-triazines

A process for enhancing the thermal and/or photochemical stability of dyeings on dimensionally stabilised polyamide fibres, which comprises treating the polyamide fibre material, before the fixation step for producing defined, resilient forms and dimensions, in aqueous medium with a compound of formula I

Stabilization of dyeings of polyamide fibres

There is disclosed a process for the photochemical and thermal stabilisation of polyamide fibre material as claimed in claim 1. The fibre materials treated by the inventive process are distinguished by good fibre affinity and enhanced photochemical and thermal stability.

Process for the photochemical and thermal stabilization of polyamide

Water-soluble triazine derivatives of formula (1) are disclosed. The novel compounds are representatives of sterically hindered amines (HALS stabilisers) and are suitable for enhancing the thermal and photochemical stability of undyed and dyed polyamide fibre materials.

Water-soluble triazine derivatives

A process is described for the photochemical and thermal stabilization of undyed and dyed or printed polyester fiber materials, which comprises treating said materials with a compound of formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,

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Allschwil, Switzerland

Gerhard Reinert