Bayer Aktiengesellschaft

Bayeraktiengesellschaft

Joachim Konig

Carlhans Suling

Heinz Baumgen

Joachim Probst

Jurgen Reiners

Gunter Sackmann

Bruno Bomer

Harro Traubel

Bernhard Jansen

Fritz Puchner

Hans-Josef Laas

Helmut Reiff

Wolfgang Henning

Peter Nowak

Jurgen Kopp

Reinhard Halpaap

Siegfried Korte

Ulrich Beck

Eckhard Wenderoth

Christian Lindner

Kuno Wagner

Rolf-Volker Meyer

Heinrich Alberts

Walter Meckel

Klaus Nachtkamp

Gunther Boehmke

Friedhelm Muller

Michael Muller

Bernd Quiring

Udo Eckstein

Udo-Winfried Hendricks

Bernd Thiele

Carl Heynemann

Hans Theidel

Jochen Koll

Renke Mottweiler

Hans Hespe

Karl-Erwin Schnalke

Gottfried Wallpott

Klaus-Dieter Albrecht

Raimund Weber

Horacek: Gotz

Werner Bieber

Harald Faika

The novel AOX-free process for imparting wet strength to paper with water-dispersible polyisocyanates is distinguished by a good wet-strength effect, even under mild drying conditions, and does not affect the activity of optical brighteners used at the same time.

Process for imparting wet strength to paper

Paper finishing aid

Water-dispersible polyisocyanates

Paper finishing process using polyisocyanates with anionic groups and

Coating slips with polyisocyanates

The invention relates to a new process for the preparation of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterised in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which contains tertiary amino and/or ammonium groups, optionally polyether units and optionally hydrophobic groups.

Chlorine-free multifunctional resins for paper finishing

Process for the production of optionally wood-containing cellulose-containing sheet-like structures, such as paper, pasteboard and card, which have been given a dry strength and/or wet strength treatment and have improved whiteness, using water-dispersible isocyanates, wherein the water-dispersible isocyanates:

Process for the production of cellulose-containing sheet-like structures

Process for fixing anionic interfering substances in papermaking process by the addition of cationic polycondensation products obtained by reacting

Process for fixing disruptive substances in papermaking

The invention relates to a new process for the preparation of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterized in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which contains tertiary amino and/or ammonium groups, optionally polyether units and optionally hydrophobic groups.

The new vinyl polymer dispersions are obtainable by free radical polymerisation of olefinically unsaturated monomers in the presence of a cationic polyamidoamine which has been rendered hydrophobic, and can be used as sizing agents for paper which are distinguished, in particular, by their shear, electrolyte, heat and storage stability.

Process for sizing paper

Emulsion polymers obtainable by emulsifying a mixture consisting of

Emulsion polymers

Emulsion polymers which are prepared by free-radical polymerisation of monomers in the presence of

Paper size

Polymers obtainable by subjecting at least one monomer, polymerizable by free radicals, to a free-radical emulsion polymerization in the presence of a polymer of the formulae I and/or II ##STR1## in which M, n, R, R.sup.1, R.sup.2, x and y have the meanings mentioned in the description, the use of the polymers obtained for surface-sizing of paper or paper-like materials and also novel polymers of the formulae I and/or II.

Polymers of diisobutylene-sulfonate alkane maleic acid derivatives

Polymers from ethylenic monomers

Emulsion polymers obtained by emulsifying a monomer mixture of

Growing community of inventors

Odenthal, Germany

Joachim Konig