Polymer composition for flexibilizing building materials
AssigneeWacker Chemie AG
InventorsHerbert Eck, Klaus Adler, Hermann Lutz, Heinrich Hopf
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Abstract
The invention provides a polymer composition for flexibilizing building materials, in the form of their aqueous dispersion or of powder redispersible in water, containing a) at least one water-insoluble, film-forming polymer of one or more ethylenically unsaturated monomers capable of free radical polymerization, b) at least one compound from the group consisting of the water-soluble polymers of one or more ethylenically unsaturated monomers capable of free radical polymerization, and the ionic and nonionic emulsifiers, and c) a mixture of at least two organosilicon compounds, at least one of which is an amino-functional organosilicon compound present in salt form.
Claims26
A polymer composition suitable for flexibilizing building materials, said polymer composition comprising at least one of an aqueous polymer dispersion or a redispersible polymer powder prepared therefrom, said polymer comprising:
- a) at least one water-insoluble, film-forming addition polymer of one or more ethylenically unsaturated monomers capable of free radical polymerization, said polymer composition further comprising;
- b) at least one component selected from the group consisting of water soluble protective colloids, ionic emulsifiers and non-ionic emulsifiers;
- c) a first organosilicon compound containing amino-functional silane or siloxy moieties;
- and
- d) a second organosilicon compound different from said first organosilicon compound, wherein said organosilicon compounds c) and d) are added to said film-forming addition polymer a) following its preparation
- and wherein amino groups of said organosilicon compounds are present in salt form.
Dependencies are inferred from the claim text.