Ciba-geigy Corporation

Ciba Specialty Chemicals Corporation

Vantico Limited

Hugh Stephen Laver

Eric Vieira

David G Leppard

Vien V Toan

Dario Lazzari

Thomas Bolle

Mirko Rossi

Mario Slongo

Adalbert Braig

Andrew Mar

Christoph Rickert

Harry Joseph Evers

Thai Hong Nguyen

Chia-Hu Chang

Morpholinones as light stabilizers

Paint or coating compositions are stabilized by spiroindane compounds of the following formula

Stabilization of paints with spiroindane derivatives

The present invention is directed to a polyglycidyl compound having on average more than two, preferably more than two and a half, particularly preferably more than three, glycidyl groups per molecule and a T,value (determined by DSC, heating rate&equals;20&deg; C./min) higher than 20&deg; C., based on a polyfunctional 1,1&prime;-spirobisindane of formula I or on a mixture of different polyfunctional 1,1&prime;-spirobisindanes of the general formula I

Polyglycidyl compounds

The invention relates to new compounds containing 1-8 active groups of the type 3,3,6,6-polysubstituted 2-morpholinone and having the formula F

A method for improving the chargeability of a powder coating composition containing an organic film-forming binder, which method comprises incorporating into the powder coating composition at least two different compounds containing a residue of the formula (A) ##STR1## as electron donors.

Method for improving the chargeability of a powder coating composition

A description is given of powder coating compositions comprising a) an organic film-forming binder and b) as stabilizer at least one compound of formula I ##STR1## wherein the general symbols are as defined in claim 1. Using powder coating compositions stabilized in this manner reduces the discoloration of the coatings during heat-cures, in particular during gas furnace cures.

Stabilizers for powder coatings

The instant invention pertains to a method of improving the quality and resolution of photoimages by incorporating into the photocurable resin composition to be used a selected amount of a polymerization inhibitor so that photopolymerization of the photocurable resin is inhibited in those areas not directly impinged by light.

Method for improving photoimage quality

A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in the specification.

Color-photographic recording material

A description is given of powder coating compositions comprising

Corrosion inhibitors in powder coatings

Inks, particularly inks for ink jet printing, contain at least one compound of the formula I ##STR1## as a stabilizer. The symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.3 ' and R.sub.4 ' are as defined in claim 1. The compounds are in part novel and are suitable for use as light stabilizers for organic materials.

Inks, particularly for ink jet printing

The invention relates to ink compositions, in particular for ink-jet printing, containing as stabiliser a water-soluble compound of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, L, M and n are as defined in claim 1, to said compounds and to recording materials containing them, and to a process for stabilising ink-jet prints, the stabiliser being a compound of formula (I) or (II).

Ink compositions

A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in claim 1.

Compounds of formula ##STR1## wherein R, L, X and Y are as defined in claim 1, are very suitable for use as UV absorbers in pressure-sensitive or heat-sensitive recording materials.

Pressure-sensitive or heat-sensitive recording material

Inks, in particular for ink-jet printing, containing, as stabilizer, a water-soluble compound of the formula ##STR1## in which R.sub.1 to R.sub.7 are as defined in claim 1, and recording materials containing these compounds.

Inks

2-(2'-Hydroxyphenyl)benzotriazoles of formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are as defined in claim 1, and which contain at least one --SO.sub.3 X group in the molecule, are suitable light stabilizing additives for aqueous ink compositions, especially for ink jet printing. Some of these compounds are novel compounds.

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Reinach, Switzerland

Hugh Stephen Laver