Basf Aktiengesellschaft

Basf Se Corporation

Basf Corporation

Basfaktiengesellschaft

Matthias Kroner

Richard Baur

Gunnar Schornick

Volker Schwendemann

Heinrich Hartmann

Johannes Perner

Alexander Kud

Dieter Hannu Boeckh

Birgit Potthoff-Karl

Volker Warzelhan

Motonori Yamamoto

Harald Schaefer

Ursula Seeliger

Werner Bertleff

Horst Binder

Paul Diessel

Angelika Funhoff

Axel Sanner

Walter Denzinger

Son Nguyen Kim

Jens Scheidel

Dieter Faul

Peter Neumann

Andreas Haupt

Eckehardt Wistuba

Christian Schade

Karl-Heinz Schumacher

Wolfgang Trieselt

Tom Witzel

Torsten Mattke

Matthias Gerst

Bernd Reck

Jochen Wild

Peter Bauer

Frank Braun

Manfred Niessner

Richard J Holland

Gregor Brodt

Michael Ehle

Detlef Kratz

Stephan Hüffer

Hans-Ulrich Jaeger

Karl-Heinz Büchner

Alexander Bayer

Peter Hossel

Hans-Ulrich Jager

Thomas Genger

Alfons Ludwig

Jürgen Pfister

Sebastian Emmerling

Daniel Flojhar

Guillermo Arens

Thomas Meyer

Hans-Jürgen Raubenheimer

Karl-Heinz B&uuml;chner

Rainer Buschl

Markus Hartmann

Gerhard Wolf

Ekhard Winkler

Kathleen M Guiney

Jurgen Hofmann

Knut Oppenl&auml;nder

Franz Emling

Gerrit Waters

Michael Kluge

Jurgen Alfred Lux

Uwe Pressler

Thomas Anstock

Beate Ehle

Carl Jokisch

Julia Leschinski

Holger Schoepke

Wolfgang G&uuml;nther

Juergen Hartmann

Karl-Heinz Buechner

Gerhard Ramlow

Matthias Klüglein

Helmut Guembel

Bernard Mohr

Hans-Jacob Feindt

Rudolf Bazner

Harald Schäfer

Jurgen Huff

Martin Aus Kahmen

Udo Metzmann

Juergen Steinmetz

Dieter Voelker

Bernd Riedl

Helmut Griesser

Ulrich Schmidt

Gerhard Haas

Angelika Funhof

Uwe Strotmann

Bernhard Reck

The present invention relates to a new process for preparing polyisocyanates containing isocyanurate groups and being flocculation-stable in solvents from (cyclo)aliphatic diisocyanates.

Method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents

The present invention relates to a novel process for preparing isocyanurate-comprising polyisocyanates of (cyclo)aliphatic diisocyanates that are especially stable to color drift in solvents.

Colour-stable curing compositions containing polyisocyanates of (cyclo)aliphatic diisocyanates

The present invention relates to a process for preparing colorless polyisocyanates, in particular for reducing the color of polyisocyanates.

Method for producing colourless polyisocyanates

The present invention relates to a process for preparing polyisocyanates comprising biuret groups from diisocyanates or polyisocyanates and diamines.

Process for preparing polyisocyanates comprising biuret groups

The present invention relates to a novel process for preparing colorless, isocyanurate group-comprising polyisocyanates of (cyclo)aliphatic diisocyanates.

Method for producing colorless isocyanurates of diisocyanates

Polymers of a poly(meth)acrylic acid main chain in which, based on the main chain, 0 to 30% by weight of the (meth)acrylic acid basic building blocks may be replaced by maleic acid (anhydride) basic building blocks, fumaric acid basic building blocks or mixtures thereof and 0 to 10% by weight of the (meth)acrylic acid basic building blocks may be replaced by other copolymerizable ethylenic basic building blocks, and C-alkylpoly-C-alkylene glycols, bonded to the main chain via ester groups, having an average molecular weight of from 250 to 10 000 as side chains, where, based on the polymer, 1 to 19% by weight of the main chain and 81 to 99% by weight of the side chains are present and this ratio and the average molecular weight of the side chains are chosen such that free carboxyl groups are present in the polymer, are used as controllable dispersants for detergents or cleaners or constituents thereof.

Polymers used as controllable dispersing agents

Alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids are prepared by esterifying (a) monoethylenically unsaturated carboxylic acids with (b) polyalkylene glycols which are endcapped at one end, in the absence of a solvent and in the presence of polymerization inhibitors and esterification catalysts at not more than 160&#xb0; C. by a process in which the esterification is first carried out under atmospheric pressure or at up to 50 bar, the water formed in the esterification is then distilled from the reaction mixture at from 10 to 500 mbar and the esterification is then continued under atmospheric pressure or at up to 50 bar.

Method for producing alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids

A process for the preparation of water-soluble polymers of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols by azeotropic esterification, in the presence of organic solvents which form an azeotrope with water, of ethylenically unsaturated carboxylic acids with polyalkylene oxides which are capped at one end by end groups, to a degree of at least 85 wt %, followed by free-radical polymerization of the resulting esters optionally together with other ethylenically unsaturated monomers, in aqueous medium, wherein the organic solvents are removed by azeotropic distillation from the reaction mixture during polymerization and the water that is removed by distillation is recycled or the quantity of water removed by distillation from the reaction mixture is replaced by a feed of fresh water.

Method for producing water soluble polymer of esters from ethylenically unsaturated carboxylic acids and polyalkylene glycols

Water-soluble polymers of esters made from acrylic acid and alkylpolyalkylene glycols, obtainable by azeotropic esterification of a mixture of acrylic acid and alkylpolyalkylene glycol in a molar ratio of from 2 to 3:1 in the presence of at least 85% by weight, based on the alkylpolyalkylene glycol, of an organic solvent which forms an azeotrope with water, followed by free-radical polymerization, in an aqueous medium, of the mixture obtained during the esterification, where the organic solvent is distilled off azeotropically from the reaction mixture during the polymerization, and the water removed by distillation is returned to the mixture or replaced by a feed of fresh water, and preparation and use of these polymers as an additive to cementitious systems.

Water-soluble polymers of esters made from acrylic acid and alkylpolyalkylene glycols

Polymers containing acid groups are modified by reaction of

Method for modifying acid group containing polymers

The invention relates to a process for the preparation of water-soluble polymers containing polyalkylene glycol ether side chains and having molecular weights of from 15,000 to 65,000 by solution polymerization of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols which are masked on the end groups at one end, if desired together with another monomer in at least one hydrocarbon at monomer concentrations of from 70 to 95% by weight in the presence of free-radical-forming polymerization initiators and, if desired, polymerization regulators at temperatures of up to 200&deg; C., removal of the solvent used in the solution polymerization, and dissolution of the polymers in water to give from 50 to 80% strength by weight solutions, with polymers containing acid groups being neutralized if desired.

Process for the preparation of water-soluble polymers containing polyalkylene glycol ether side chains

The present invention relates to the use of compositions comprising reaction products of low molecular mass dicarboxylic or tricarboxylic acids with ammonia to produce moldings comprising finely divided materials.

Compositions for producing moldings from finely divided materials

Mixtures of at least one polycarboxylate-based plasticizer for cement-comprising mineral building materials, and butoxylated polyalkylenepolyamines or their salts as air detrainers, and the use of such mixtures as additives for mineral building materials comprising cement, are described.

Additives for mineral building materials containing cement

Detergent and tableware cleaner

Use of at least trivalent alcohols and their alkoxylation products

Growing community of inventors

Eisenberg, Germany

Matthias Kroner