Clariant Finance (bvi) Limited

Clariant Corporation

Clariant Produkte (deutschland) Gmbh

Rhodia Operations

Specialty Operations France

Alexander Lerch

Matthias Krull

Helmut Ritter

Roman Morschhaeuser

Sarah Schmitz

Frank-Peter Lang

Peter Klug

Peng Ji

Gerd Reinhardt

Roman Morschhäuser

Wolf-Dieter Mueller

Bing Hong

Christoph Kayser

Peter Naumann

Bjoern Fechner

Stéphane Streiff

Michael Seebach

Johannes Becherer

Armin Liebens

Michael Wessling

Uwe Bechtold

Norbert Beye

Gerhard Zirkenbach

Narayan D Sadanani

Hanspeter Gethoeffer

Fan Jiang

Alexander Burkhart

Manfred Schade

The instant invention concerns a process for fragmenting a polymer chain, comprising an oxidative degradation step wherein the polymer chain is contacted with a reduced form of a metal M and an oxidant such as dioxygen, and wherein the polymer carries covalently bound chemical groups acting as a ligand of said reduced form of the metal M. The invention also relates to methods making use of this fragmentation process as a first step of a degradation process of the polymer especially useful for avoiding the negative impact of a polymer to the environment. In this connection, the invention relates to the use of polymers carrying chemical groups acting as a ligand for a reduced form of a metal M, as a polymer biodegradable in an environment wherein the reduced form of a metal M is present.

Process for fragmenting a polymer

Provided is the use of a lanthanide metal complex as a bleaching catalyst. In particular, the lanthanide metal complex comprises a ligand which is an aromatic compound having at least one electron withdrawing substituent and at least one nucleophilic group. Provided is also a composition containing the lanthanide metal complex.

Composition containing lanthanide metal complex

The invention relates to a method for producing fatty acid alkanol amides by reacting at least one amine that contains at least one primary or secondary amino group and at least one hydroxyl group with at least one fatty acid to form an ammonium salt, said ammonium salt being subsequently converted into the alkanol amide by means of microwave radiation.

Method for producing fatty acid alkanol amides

The invention relates to a method for producing bisbenzoxazoles that are interconnected by means of a system of conjugated double bonds, according to which o-aminophenols are reacted with dicarboxylic acids, the carboxyl groups of which are interconnected via a double bond or a system of conjugated double bonds, to form an ammonium salt, said ammonium salt being converted in the presence of dehydrogenating catalysts and solvents with a low dielectric loss into benzoxazol by means of microwave radiation.

Method for producing bisbenzoxazoles

The invention relates to a method for producing tertiary amides of alkylphenyl carboxylic acids by reacting at least one secondary amine with at least one alkylphenyl carboxylic acid to form an ammonium salt, said ammonium salt being subsequently converted into the tertiary amide by means of microwave radiation.

Method for producing tertiary amides of alkylphenyl carboxylic acids

An aqueous pigment preparation containing: (A) at least one organic and/or inorganic pigment; (B) at least one water-soluble or water-dispersible non-ionic oligoester or polyester, which is obtained by the polycondensation of dicarboxylic acid and glycol components, said oligoester or polyester comprising I) one or more aromatic dicarboxylic acids, their esters or anhydrides, II) C-Calkenediols, III) poly (C-C-alkene)glycols and/or methylpoly(C-Calkene)glycols, IV) optional water-soluble addition products of alkene oxide on C-Calcohols, C-Calkylphenols or on C-Calkylamines and V) one or more optional polyols; (C) optional additional dispersants and surfactants that are conventionally used to produce aqueous pigment dispersions; (D) optional additional additives that are conventionally used to produce aqueous pigment dispersions; and (E) water.

Aqueous, oligoester-based pigment preparations, their production and use

The claimed liquid formulations contain an organic acid and a branched mono- or di-alcohol. The addition of the alcohol improves the storage stability of the liquid formulations.

Aqueous liquid formulations of pyrazoline brighteners

A process for preparing acyloxybenzenesulfonates by reacting a carboxylic acid derivative with a salt of a phenolsulfonic acid in the presence of an antioxidant, preferably 2,6-di-tert-butyl-4-methylphenol. The addition of such antioxidants gives a product having a high color quality.

Process for preparing acyloxybenzenesulfonates

A process for preparing acyloxybenzenesulfonates by reacting anhydrous phenolsulfonates with carboxylic acid derivatives comprises conducting the reaction with a salt of a phenolsulfonic acid which has a water content of less than 0.5% by weight and has been contacted with a substance having basic properties.

The invention relates to oligoesters obtained by polycondensation of

Soil release oligoesters

Growing community of inventors

Gelnhausen, Germany

Alexander Lerch