Wacker-chemie Gmbh

Wacker Chemie Ag

Wacker Polymer Systems Gmbh & Co. Kg

Hermann Lutz

Herbert Eck

Hans-Peter Weitzel

Klaus Adler

Heinrich Hopf

Thomas Bastelberger

Stefan Killat

Peter Fritze

Peter Ball

Klaus Kohlhammer

Theo Mayer

Peter John

Harald Zeh

Jürgen Bezler

Peter Heiling

Stefan Bonimeier

Mohammed Sanaobar

Andrea Schorm

Armin Hoffman

Hans Peter Weitzel

Jörgen Bezler

The invention relates to acid-resistant, hydraulically setting masses based on a) slag sand, b) one or more pozzolanas, c) one or more fillers, d) one or more polymers based on ethylenically unsaturated monomers, and water.

Acid-resistant, hydraulically setting masses

Redispersible polymer powders which are cationically stabilized by spray drying a polymer dispersion with a cationic polymer can be used in higher concentrations in chemical building construction materials without introducing adverse properties.

Process for producing cationically stabilized and water-redispersible polymer powder compositions

Copolymers of ethylene and vinyl chloride also containing a protective colloid, optionally in conjunction with a fatty acid compound or precursor thereof or with an organosilicon compound, can be employed to increase the water repellency of hydraulically settable construction materials.

Use of vinyl chloride-ethylene copolymers for hydrophobing construction substances

Water-redispersible polymer powder compositions based on a) homo- or copolymers of one or more monomers from the group consisting of vinyl esters of unbranched or branched Calkylcarboxylic acids methacrylic esters and acrylic esters of Calcohols, vinylaromatics, olefins, dienes, and vinyl halides, with one or more protective colloids, and optionally, one or more antiblocking agents, in conjunction with one or more alkali metal or alkaline earth metal Ccarboxylates as setting accelerants added following polymerization accelerate the setting of construction chemistry products with hydraulically setting binders.

Use of redispersion powder compositions with accelerated-setting action

Water-redispersible polymer powder compositions based on homopolymers or copolymers of one or more monomers from the group consisting of vinyl esters of unbranched or branched alkylcarboxylic acids having from 1 to 15 carbon atoms, methacrylic esters and acrylic esters of alcohols having from 1 to 15 carbon atoms, vinylaromatics, olefins, dienes and vinyl halides, one or more protective colloids, if desired antiblocking agents, contain one or more compounds from the group of pozzolanas. The pozzolanic compounds preferably take the place of anti-blocking agents conventionally used.

Redispersible powders comprising pozzolanic components

Polymer composition for flexibilizing building materials

Crosslinkable polymer compositions are provided which can be in the form of a polymer powder which is redispersible in water or as an aqueous dispersion. The polymer composition is composed of A) a copolymer of one or more comonomers of vinyl esters of straight-chain or branched alkanecarboxylic acids having 1 to 18 C atoms, acrylates or methacrylates of branched or straight-chain alcohols having 1 to 15 C atoms, dienes, olefins, vinylaromatics and vinyl halides, and of from 0.1 to 10% by weight, based on the total weight of the comonomers, of one or more ethylenically unsaturated comonomers containing epoxide groups, and B) one or more non-copolymerizable compounds having at least two epoxide groups. The invention furthermore relates to a process for the preparation of the crosslinkable polymer compositions and their use in chemical products for the construction industry.

Crosslinkable polymer composition

Redispersable cross-linkable dispersion powders

Storage-stable, silane-modified core-shell copolymers are provided comprising a shell-forming copolymer I of

Storage-stable, silane-modified core-shell copolymers

Core/shell copolymer dispersion whose shell comprises hydrolyzable

The invention relates to water-dispersible or water-soluble polymer powder compositions which can be crosslinked or condensed by acid and comprises

Crosslinkable polymer powder compositions

Growing community of inventors

Emmerting, Germany

Hermann Lutz