Wacker-chemie Gmbh

Wacker Polymer Systems Gmbh & Co. Kg

Reinhard H&auml;rzschel

Theo Mayer

Hans-Peter Weitzel

Self-leveling screeds and trowel-applied flooring compositions are provided containing dispersion powder compositions based on vinylaromatic-1,3-diene copolymers. The use of these copolymers in the flooring compositions dispensing with the need for fully hydrolyzed copolymers made from 1-alkylvinyl esters and from vinyl esters while obtaining good wear resistance, scratch resistance and adhesion.

Self-leveling screeds and trowel-applied flooring compositions containing dispersion powder compositions based on vinylaromatic-1,3-diene copolymers

The invention relates to the utilization of aqueous polymer dispersions or of polymer powders which can be redispersed in water and which are based on protective colloid-stabilized aromatic vinyl-1,3-diene-copolymers in adhesive formulations used in the building industry, whereby the polymer dispersion and the polymer powders are produced by emulsion polymerization of a mixture containing at least one aromatic vinyl and at least one 1,3-diene in the presence of one or more protective colloids, without using an emulsifier, and by optionally drying of the aqueous polymer dispersion obtained thereby.

Use of Vinylaromatic/1,3-diene copolymers stabilized with protective colloids in building adhesive formulations

The invention discloses polyvinyl alcohol-stabilized copolymers of 1,3-dienes with methacrylates and/or acrylates in the form of their aqueous polymer dispersions or polymer powders redispersible in water, and to a process for their preparation and their use.

Growing community of inventors

Burghausen, Germany

Reinhard Härzschel

Growing community of inventors

Burghausen, Germany

Reinhard H&auml;rzschel

Reinhard Härzschel