Ciba Specialty Chemicals Corporation

Other

Ciba-geigy Corporation

Basf Se Corporation

Cynora Gmbh

Riedel-de Haen Aktiengesellschaft

Unisensor Sensorsysteme Gmbh

Alamedics Gmbh & Co. Kg

Diagnostic Systems Biotechnologie Gmbh

Riedel-de-haen

Ciba Specialty Chemicals Corporatoin

Pharmpur Gmbh

Technische Hochschule Rosenheim

Heinz Langhals

Markus Speckbacher

Wolfgang Jona

Dominik Zgela

Petra Christa Von Unold

Olof Wallquist

Thomas Ehlis

Gunther Krieg

Barbara Wagner

Thomas Potrawa

Martin Versen

Dirk Fey

Juergen Bohleber

Ana Varja

Josef Gold

Thorben Schlücker

Leonhard Feiler

Christoph Naumann

Rami Ismael

Bertold Hock

Rupert Brosius

Susanne Kirner

Patrick Blanke

Thorben Schluecker

Andreas Obermeier

Peter Laubichler

Harald Jaschke

Christos Haritoglou

Maximilian Wohlschläger

Simon Kinzel

The invention relates to the identification of polymer materials on the basis of the fluorescence decay time of the intrinsic fluorescence of the polymer materials for definite sorting in a completely separated manner. The invention further relates to marking with fluorescent dyes, which, because of the specific fluorescence decay times of the fluorescent dyes, can further increase the sorting reliability by means of redundancy and can be used to identify particular batches.

Automatic sorting of polymer materials on the basis of the fluorescence decay time of the intrinsic fluorescence of the polymer

The invention provides a method for identifying plastics and/or the additives therein, wherein at least some of the plastic material is irradiated with light of at least one wavelength, at least some of the light reflected by the plastic material is detected and analyzed, and the plastic material and/or the additive therein is/are identified on the basis of the result of the analysis. The disclosed method utilizes a fluorescence decay time constant of the intrinsic fluorescence of the plastic material and, if applicable, of the additive(s) therein, which is determined on the basis of the detected light, and the plastic material and/or the additive(s) therein is/are identified on the basis of the determined fluorescence decay time constant.

Method and apparatus for identifying plastics and/or the additives therein

Organic systems having a light-absorbing unit and a unit causing separation of charges are described. Said organic systems efficiently separate charges induced by light and have high lightfastness. 

Systems for the light-induced separation of charges

Cyanine dyes having optional sulfonic acid substituents on the aromatic nucleus have been developed for use as contrast agents for assisting in surgery and diagnosis, especially for simplifying the surgical removal of basal membranes of the eye, such as the internal limiting membrane (ILM), and for dyeing the lens capsule.

Naphthocyanines for use as contrast agents

Disclosed are naphthalinamidinimide of formula wherein the substituents R-Rare defined herein.

Naphthalene amidine imides

Core-extended perylene bisimides

A method for the detection of substances contained on textile fibers or other natural or synthetic polymers is disclosed. The contained substances are identified with immunochemical methods, where the immunochemical reaction can occur on the fiber or polymer. The method is especially suitable for the determination of substances that can act as allergens.

Immunochemical determination of substances contained on textile fibers or polymers

Perylene imide monocarboxylic acids of the general formula I ##STR1## perylene-3,4-dicarboxylic acid imides, perylene imide carboxylic acid derivatives and a process for the preparation of these compounds as well as their use, inter alia, as colourants.

Perylene imide monocarboxylic acids

Donor-substituted oxindigo derivatives and their use as colorants

Hydrazam imides of the general formula I ##STR1## wherein R.sup.1 and R.sup.2 are each independently of the other (a) hydrogen or nitro, at least one of which radicals being nitro, or R.sup.1 and R.sup.2 together are (b) one of the following radicals ##STR2## wherein B is ##STR3## and R.sup.5 is C.sub.1 -C.sub.18 alkyl or R.sup.3 or R.sup.4, in which case R.sup.1 and R.sup.2 are bound to the compound of formula I in the positions a and b, R.sup.3 and R.sup.4 are each independently of the other unbranched C.sub.1 -C.sub.10 alkyl, and processes for their preparation and their use.

Naphthalenehydrazamimides and perylenehydrazamimides

Perylene hydrazide imides of the general formula I a process for the preparation thereof, the use thereof as detection reagents for carbonyl compounds, protonic acids, acylating agents and metal salts, and also perylene hydrazones II and bi- and tri-fluorophoric perylene bisimides III, the preparation thereof and methods of using them.

Fluorescence-derivatisation of carbonyl compounds-novel carbonyl reagents

A process for forming perylene-3, 4-dicarboxylic anhydrides by reacting a corresponding perylene-3,4:9, 10-tetracarboxylic dianhydride with a sterically hindered amine, as a base, at an elevated temperature.

Preparation of perylene-3,4-dicarboxylic anhydrides

Perylene-3,4:9,10-tetracarboxylic acid imides of the general formula I, including their optical antipodes and their mixtures, in particular their racemates ##STR1## wherein R.sup.1 to R.sup.14 are identical or different and are hydrogen or a radical selected from the group consisting of an unsubstituted or substituted carbocyclic aromatic radical, an unsubstituted or substituted heterocyclic aromatic radical, halogen, unsubstituted or substituted C.sub.1 -C.sub.18 alkyl, --OR.sup.15, --CN, --NR.sup.16 R.sup.17, --COR.sup.18, --NR.sup.19 COR.sup.18, --NR.sup.15 COOR.sup.18, --NR.sup.15 CONR.sup.16 R.sup.17, --NHSO.sub.2 R.sup.18, --SO.sub.2 R.sup.18, --SOR.sup.18, --SO.sub.2 OR.sup.18, --CONR.sup.16 R.sup.17 --N.dbd.NR.sup.20, --OCOR.sup.18 and --OCONHR.sup.18, where pairs of adjacent radicals can form a carbocyclic or heterocyclic ring,

Bifluorophoric perylene colourants

Naphthalenelactamimides of the formula I ##STR1## in which, for example, R.sub.1 and R.sub.2 are 2,5-di-tert-butylphenyl and m and n are 0, are novel dyes which have the distinctive features of pronounced fluorescence as a solid and in solvents and a good light-fastness. They are therefore suitable, for example, for mass dyeing of high molecular weight organic material, as laser dyes and for the preparation of printing toners, colour filters, organic photoreceptors, electroluminescent and photoluminescent elements, optical information storage media or solar collectors. The compounds of the the formula I can be prepared by reaction of the corresponding naphthalenetetracarboxylic acid bisimides with a base.

Naphthalenelactamimide fluorescence dyes

Di-, tri- and tetrachromophoric perylene-3,4:9,10-tetracarboxylic acid imides of the formula I ##STR1## in which A is, for example, 1,4-phenylene,

Process for the preparation of peryleneimides, novel di-, tri- and

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Ottobrunn, Germany

Heinz Langhals