Basf Aktiengesellschaft

Basf Coatings Ag

Kurt Wendel

Thomas Schwerzel

Guenter Hirsch

Wilhelm Friedrich Beckerle

Manfred Schwartz

Sven Grabowski

Bernhard Dotzauer

Hans-Juergen Denu

Astrid Kah-Helbig

Axel Sanner

Knut Oppenlaender

Christian Schade

Hubert Baumgart

Rolf Wurmb

Karin H Beck

Christof Taubitz

Wolfgang Schwarz

Bernhard Schlarb

Peter Fickeisen

Rudolf Mueller-Mall

Dieter Distler

Helmut Bellaire

Michael Melan

Andreas Einwiller

Peter Freyberg

Fritz Reichel

Thomas Anselmann

Hans J Geelhaar

Michael Ernst Rohmann

Klaus Eisentraeger

Hanns-Dietmar Haertl

Guenther Addicks

Ruediger Fuessl

Gunter Hirsch

Hermann Rockstroh

Eckchard Sapper

Gert Elschnig

Aqueous coating agent

Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof.

Aqueous polymer dispersions

Dyestuff-containing aqueous dispersions obtainable by

Dyestuff-containing aqueous dispersions

A polymer powder obtained by drying an aqueous polymer dispersion, wherein the aqueous polymer dispersion is obtained by free-radical polymerization of unsaturated monomers and contains at least one added starch-degradation product which is obtained by hydrolysis in the aqueous phase, is water soluble at room temperature and has a weight average molecular weight M.sub.w of from 2500 to 25000.

A process for the production of solid pharmaceutical depot forms by application of a reconstituted aqueous dispersion of a pharmaceutically acceptable binder to a core which contains active substance or by wet granulation of the pharmaceutical active substance with such a binder dispersion or by direct tableting of an active substance with the redispersible binder powder, wherein the binder has been obtained by emulsion polymerization and subsequent spray drying of the resulting aqueous dispersion with a water-soluble pharmaceutically acceptable spraying aid with a glass transition temperature of at least 60.degree. C. and with or without a pharmaceutically acceptable antiblocking agent.

Production of solid pharmaceutical depot forms

A process for coating drug forms by application of an aqueous dispersion which contains as binder a redispersed latex of an emulsion polymer onto the drug form and evaporating the water at a temperature at which the latex particles form a film, comprises employing a polymer dispersion which has been prepared by emulsion polymerization of one part by weight of at least one ethylenically unsaturated polymerizable monomer, by means of initiators which provide free radicals, in the presence of from 0.1 to 2 parts by weight of saccharified starch, and from 0 to 5% by weight, based on the monomer or monomers, of a surfactant, with or without further conventional additives, drying to a powder and redispersing in water.

Coating of drug forms

A molding based on finely divided organic and/or inorganic materials containing, as binder, the solid component of an aqueous polymer dispersion which is obtainable by polymerizing unsaturated monomers which can be polymerized by means of free radicals in the aqueous phase in the presence of a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically and/or enzymatically degraded polysaccharide, chemically modified monosaccharide, oligosaccharide or polysaccharide, or a mixture of the said compounds, by the process of free-radical aqueous emulsion polymerization.

Moldings

Abrasives based on finely divided abrasive particles bonded to one another and/or to a support by means of a binder, where the binder is the solid component of an aqueous polymer dispersion which is obtainable by polymerizing unsaturated monomers which can be polymerized by means of free radicals, in the aqueous phase in the presence of a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically and/or enzymatically degraded polysaccharide, chemically modified monosaccharide, oligosaccharide or polysaccharide, or a mixture of the said compounds, by the process of free-radical aqueous emulsion polymerization.

Abrasives

Shaped articles are produced from a finely particulate material as aggregate and an aqueous binder preparation containing an acrylate polymer by moistening the aggregate with the binder preparation, making it into the desired shape and then drying it, using a binder preparation whose binder is an acrylate polymer whose glass transition range is relatively high and which is formed from (A) a predominant amount of methyl methacrylate, (B) a minor amount of (meth) acrylic acid, (C) a minor amount of an optional alkyl acrylate and (D) a small optional amount of another specific polymerizable compound.

Method of preparing shaped articles from a mineral aggregate and a

A shaped article is obtainable by impregnating or coating a preform composed in the main of mineral fibers, nonfibrous mineral fillers and starch with a composition which contains a binder comprising a copolymer composed of

Shaped articles

An aqueous paper-coating composition which essentially comprises a finely divided pigment and an emulsion copolymer of

Use of acrylate-based emulsion copolymer as the sole binder for a paper

An improved paper-coating composition which contains, per 100 parts by weight of a finely divided pigment, from 5 to 25 parts by weight of a copolymer A, in the form of an aqueous dispersion, as a binder, and from 0.5 to 10 parts by weight of a copolymer B, containing

Paper-coating compositions

Aqueous polyacrylate dispersions having improved flow characteristics are prepared by polymerizing esters of acrylic acid and/or methacrylic acid and alkanols of 1 to 10 carbon atoms, with or without admixture of styrene and/or vinyl esters and/or water-soluble monoolefinically unsaturated comonomers (the monomer feed being in the form of an emulsion), in aqueous emulsion in the presence of a free radical polymerization initiator, a protective colloid, a nonionic emulsifier and a regulator, at least a part of the protective colloid being introduced into an aqueous initial charge, and a water-soluble regulator being employed in the initial charge and in the feed.

Preparation of aqueous polyacrylate dispersions having improved flow

Growing community of inventors

Ludwigshafen, Germany

Kurt Wendel