Basf Aktiengesellschaft

Badische Anilin- & Soda-fabrik Aktiengesellschaft

Harro Petersen

Kurt Fischer

Panemangalore S Pai

Horst Schmidt

Hellmuth Kasch

Manfred Reichert

Eckehardt Wistuba

Eberhard Schupp

Werner Loch

Wolfram Weiss

Otto Wittmann

Ulrich Goeckel

Wolfgang Eisele

Werner Trimborn

Friedrich Klippel

Hans Klug

Knut Oppenlaender

Erich Beck

Toni Dockner

Rolf Osterloh

Fritz E Kempter

Thomas Schwerzel

Rolf Wurmb

Manfred Niessner

Hans Renz

Norbert Greif

Guenter Eckert

Franz Schmidt

Edmund Keil

Adolf Nuber

Rainer Strickler

Christof Jaeckh

Toni Simenc

Gerd Busse

Jakob Decher

Friedrich Reinert

Hans-Joachim Krause

Adolph Segnitz

Johann Mayer

Harald Schlueter

Ulrich Baumgarte

Hermann Schwab

Reinhard Lang

Lothar Wuertele

Gerhard Paulus

Hubert Schoeppl

Gunther Sabelus

Gerhard Faulhaber

Heinz Bille

Anna Steimmig

Hubertus Queins

Herbert Tulo

Klaus Erhardt

Hugo Fuetterer

Ludwig Lelgemann

Bernhard Magerkurth

Horst Zaunbrecher

Uwe Kirchgaessner

Gunther Immel

Radiation-curable binders which are obtained by reacting A) an amine/formaldehyde condensate having a molar ratio of formaldehyde to amino groups of from 1:1 to 2:1 with

Radiation-curable binders

An aqueous resin solution for the impregnation of paper webs contains 2-40 parts by weight of a polyurea composed of urea and of a polyamine per 100 parts by weight of a melamine/formaldehyde precondensate. The impregnated paper webs are suitable for coating woodbase materials, especially chipboard.

Resin solution for the impregnation of paper webs

Urea-aldehyde polycondensates usable as surface coating binders are obtainable by step-wise reaction of

Urea-aldehyde polycondensates, preparation thereof and use thereof as

Condensates based on substituted ureas, their reaction products with di- and/or polyisocyanates, derivatives of di- and/or polycarboxylic acids or p-substituted phenols and/or their methylol derivatives, their preparation and their use. These condensates each contain two or more cyclic urea units and can be prepared either by reacting primary di- or polyamines with ureas and reacting the product with predominantly CH-acidic aldehydes or by reacting primary amines with isocyanates and reacting the product with predominantly CH-acidic aldehydes in the presence of an acidic catalyst. The said condensates and their reaction products are useful for the preparation of heat-curable coating materials and of binders for cathodic electrocoating.

Reaction products and condensates based on substituted propyleneureas

A process for the preparation of stable aqueous aldehyde resin dispersions and for the production of surface coating binders. For this purpose, a melt or highly concentrated solution of a polycondensate of urea and a CH-acidic aldehyde, with or without formaldehyde, is dispersed in water in the presence of an organic protective colloid and, if required, an emulsifier. These aqueous resin dispersions can be used, in combination with other film formers, as surface coating binders.

Preparation of aqueous dispersions of condensates of urea and CH-acidic

The heat-curable coating agent according to the invention contains a combination of a binder, which possesses basic nitrogen groups and is rendered water-dilutable by protonation with an acid, and a crosslinking agent and, if required, pigments, fillers, corrosion inhibitors, surface coating assistants and catalysts, and the binder used is a reaction product of a dicarboxylic acid or of a dicarboxylate or of a (meth)acrylate oligomer or polymer with an adduct of a di- or triglycidyl ether and a polyamine, the polyamine containing 2 or more amine nitrogen atoms per molecule and one or more alkylene chains of 3 or more carbon atoms between the amino groups, and has an NH amine number of from 50 to 150 mg of KOH/g and is combined with aminoplasts and/or phenoplasts as crosslinking agents. The novel coating agent is useful as a binder for the cathodic electrocoating of metal articles.

Heat-curable coating agent and its use

A process for the preparation of a stable aqeuous ketone resin or ketone/aldehyde resin dispersions and a process for the production of surface coating binders. For this purpose, a melt or a highly concentrated solution of the ketone resin or ketone/aldehyde resin is dispersed in water in the presence of an organic protective colloid. These aqueous resin dispersions can be used, in combination with other film formers, as surface coating binders.

Preparation of aqueous ketone resin or ketone/aldehyde resin

A process for the preparation of curable etherified aminoplast resins based on urea/aldehyde polycondensates, and the preparation of surface coating resins. Urea is first reacted with an .alpha.,.alpha.-dialkylaldehyde, as much as 50 mol % of which may be replaced by formaldehyde, in a molar ratio urea/aldehyde of about 1:2, at from 50.degree. to 120.degree. C., in the presence of an acid and in the presence or absence of an alcohol or of other organic solvents, and the 2-oxohexahydropyrimidine derivative obtained in this cyclocondensation is then condensed with formaldehyde in the presence of one or more alcohols and an acid. These aminoplast resins are useful as both acid-curable resins and as resins for baking finishes.

Preparation of curable etherified aminoplast resins and of surface

A process is disclosed for insolubilizing casein coatings for leather utilizing alkoxy alkyl ureas. The coatings are cured in the presence of an acid catalyst. The casein coatings of the invention avoid the disadvantageous use of aldehydes such as formaldehyde and glutaraldehyde to cure the casein and reduce its water sensitivity and unexpectedly show improved wet abrasion resistance.

Casein coatings for leather insolubilized with alkoxy alkyl ureas

A process for the preparation of a textile finish, the finish thus obtained and its use for the easycare finishing of textiles containing, or consisting of, cellulose. The finish comprises an aqueous solution, of from 30 to 70 percent strength by weight, of a mixture of the conventionally methyloloated(=hydroxymethylated) carbamates I and II ##STR1## where R is hydrogen or alkyl of 1 to 4 carbon atoms, in the weight ratio I:II of from 1:1 to 1:20. The finish is prepared by reacting a glycol or an alkylglycol of the formula III

Textile finish and processes for its preparation and use

A process for printing textile materials consisting of cellulosic fibers, or of blends of cellulosic fibers and synthetic fibers, using a print paste which contains a synthetic thickener and a disperse dye, with or without conventional assistants, and, per 1,000 parts by weight of print paste, from 40 to 250 parts by weight of an N-methylol compound or N-methylol-ether compound of urea, of a urea derivative or of a carbamic acid ester, the print being fixed at an elevated temperature. The resulting prints have exceptionally good washfastness.

Printing of textile materials

Process for finishing textiles of natural or regenerated cellulose, which have been pretreated with liquid ammonia, wherein the finishing agent used is an N-monomethylol compound or N-monoalkoxymethyl compound of 4-hydroxy- or 4-alkoxy-5,5-dimethylpropyleneurea. The process couples a high degree of finishing effect (in respect of improvement of the shrink resistance and wrinkle resistance) with only a very slight effect on the hand and especially on the tensile strength.

Finishing process for textiles

Process for the production of formaldehyde-free finishing agents for textiles containing or consisting of cellulose which is based on the reaction of urea or symmetrically disubstituted urea with glyoxal in the presence of buffer salts and alcohols at a pH of below 7, buffered mixtures of 4,5-hydroxyethyleneureas or N,N'-disubstituted 4,5-dihydroxyethyleneureas partially etherified in 4- and 5-positions being formed.

Process for the production of formaldehyde-free finishing agents for

Co-condensates are prepared by condensing from 0.8 to 2.0 moles of butyraldehyde with 1 mole of a phenol at from 80.degree. to 220.degree. C. with the addition, before, during or after the condensation, of from 5 to 50% by weight, based on the mixture of phenol and butyraldehyde, of one or more thermoplastics containing functional groups, which reacts with phenol, butyraldehyde or the phenol-butyraldehyde resin under the condensation conditions. The co-condensates are used as hot-melt adhesives and as binders for nonwovens.

Co-condensates based on phenol-butyraldehyde resins, their preparation

Novel hexahydropyrimid-4-yl ethers and a process for the preparation of hexahydropyrimid-4-yl ethers by reacting hexahydropyrimidines with alcohols at above 110.degree. C. The hexahydropyrimid-4-yl ethers obtainable by the process of the invention are valuable starting materials for the preparation of dyes, pesticides and assistants for use in textile chemistry, surface-coating resin chemistry and the timber industry.

Hexahydropyrimid-4-yl ethers and their preparation

Growing community of inventors

Frankenthal, Germany

Harro Petersen