Basf Aktiengesellschaft

Basf Se Corporation

Friedrich Linhart

Heinrich Hartmann

Michael Kroener

Walter Denzinger

Claudia Nilz

Bernd Zeeh

Andreas Stange

Werner Auhorn

Wolfgang Reuther

Primoz Lorencak

Dietmar Moench

Guenter Scherr

Hubert Meixner

Norbert Sendhoff

Bjoern Girgensohn

Bernd Dirks

Ernst-Heinrich Pommer

Heinrich Adolphi

Rolf Fikentscher

Manfred Niessner

Hans-Juergen Degen

Juergen Weiser

Rudolf Schuhmacher

Rainer Tresch

Fritz Brunnmueller

Enrique Freudenberg

Dietmar Monch

Thierry Blum

Gerhard Hamprecht

Karl Eicken

Wolfgang Rohr

Hardo Siegel

Rainer Dyllick-Brenzinger

Anton Esser

Wilfried Heide

Eckhard Hickmann

Hans Rupert Merkle

Stefan Frenzel

Gernot Reissenweber

Herbert Spoor

Rolf Schneider

Norbert Mahr

Werner Streit

Sigberg Pfohl

Martin Wendker

Martin R&uuml;benacker

Bernhard Mohr

Otto Hertel

Jaroslav Melzer

Guenter Frey

Emil Scharf

Volkmar Weberndoerfer

Sabine Thym

Klaus Pfitzner

Juergen Hartmann

Dietrich Fehringer

Ralf Hemel

Michael Kroner

Lutz End

Gerd Stubenrauch

Dietmar Jung

Andreas Hopf

Hans Mueller

Peter Baumann

Manfred Matz

Detlef Kannengiesser

Wolf Guender

Hans-Richard Mueller

Rudolf Lorz

Klaus Bohlmann

Rudi Mulder

Stephan Frenzel

Heinrich Ullrich

Klaus-Dieter Gerber

A process for improving the printability of paper and paper products by enhancing the water resistance of ink-jet printed images, wherein the process comprises treating the paper or paper products with aqueous solutions of cationic polymers comprising vinylamine units and having a charge density of at least 3 meq/g as the sole treatment composition in aqueous solution, wherein the sole treatment composition is applied in an amount from 0.05 to 5 g/mto the surface of the paper or the surface of the paper product.

Method for improving printability on paper or paper products with the aid of ink-jet printing method

Paper coated with a coating slip containing at least one optical brightener is produced by a process in which base paper or precoated paper is treated, before application of the coating slip containing optical brightener, with at least one substance which enhances the efficiency of optical brighteners.

Method for production of coated paper with extreme whiteness

The process for the production of crepe paper by adhesive bonding of a paper web with the aid of an adhesive comprising

Method for producing creped paper

Paper coating slips whose additives comprise addition polymers or copolymers containing N-vinylformamide in (co)polymerized form, and their use.

Paper coating slip containing n-vinylformamide

Paper, board and cardboard are produced by a process in which a paper stock is drained in the presence of condensates of basic amino acids with sheet formation. In particular, homo- and cocondensates of lysine and the crosslinked condensates obtainable therefrom by reaction with crosslinking agents are used in amounts of from 0.01 to 5% by weight, based on dry paper stock, as a means of increasing the dry and wet strength and the absorptivity of paper, for fixing anionic dyes and interfering substances in the paper, for increasing the drainage rate and the retention as well as the efficiency of synthetic anionic and cationic retention aids in the production of paper, board and cardboard by draining a paper stock with sheet formation.

Method of producing paper, paperboard and cardboard

Paper, board and cardboard are produced from paper stocks which contain tacky impurities by the addition of surfactants and cationic polymers having a charge density of at least 1.5 meq/g (measured at pH 7) and a molar mass M,of the cationic polymers of at least 15,000 and drainage of the paper stocks with fixation of the tacky impurities in the paper produced.

Method for producing paper, pulpboard and cardboard

Wastewaters and circulation waters in papermaking, in deinking and in pulp bleaching are treated by adsorption of water-soluble anionic compounds and compounds dispersed in water from the wastewaters and circulation waters over finely divided adsorbents which consist of insoluble, only slightly swellable polymers which contain polymerized vinylamine units, and these polymers are used as adsorbents for treating water circulations in papermaking and for treating paper machine wastewaters and wastewaters from the deinking process and from pulp bleaching.

Process for cleaning wastewater and recirculating water in paper production, de-inking and bleaching of pulp

Process for producing paper and cardboard

Cationic modification of starch and use of the cationically modified

Aqueous pigment slurries for production of filler-containing paper

Aqueous pigment slurries and their use in the production of

Water-soluble condensation products of amino-containing compounds and

Copolymers which are obtained by copolymerization of a) from 5 to 99 mol % of N-vinylcarboxamides, b) from 95 to 1 mol % of monoethylenically unsaturated carboxylic acids and/or the alkali metal, alkaline earth metal, ammonium or amine salts thereof, and if required, c) up to 30 mol % of other monoethylenically unsaturated compounds, and if required, d) up to 2 mol % of crosslinking agents, and subsequent partial or complete elimination of the acyl groups from the N-vinylcarboxamides polymerized in the copolymer, with formation of amino or ammonium groups, are used as additives to paper stock for increasing the drainage rate and the retention in papermaking, and the dry and wet strength of the paper.

Use of hydrolyzed copolymers of N-vinylcarboxamides and

Graft polymers are obtainable by free radical polymerization of

Graft polymers of natural substances containing saccharide structures or

Growing community of inventors

Heidelberg, Germany

Friedrich Linhart