摘要:
The invention provides methods for producing building material formulations in the form of dry mixers, characterized in that (a) one or more dust reducer agents are applied to one or more inorganic supports, to form supported dust reducer agents, the inorganic supports having a porosity of >=65%, and the dust reducer agents being selected from the group consisting of fatty acids, fatty acid derivatives, natural oils, hydrocarbons and polysiloxanes composed of units of the general formula RcSi (OR')d(OH)eO(4-c-d-e)/2 with c=0 to 3, d=0 to 3, e=0 to 3, in which the sum c+d+e is not more than 3.5 per unit, in which each R is identical or different and denotes branched or unbranched, optionally substituted hydrocarbon radicals having 1 to 22 carbon atoms, R' denotes identical or different, optionally substituted hydrocarbon radicals having in each case 1 to 6 carbon atoms, and (b) the supported dust reducer agents obtained in step (a) are mixed with one or more mineral binders, one or more polymers based on one or more ethylenically unsaturated monomers, optionally one or more fillers and optionally one or more additives.
摘要:
The invention relates to gypsum-containing construction material compounds, containing gypsum, if necessary one or more polymers, if necessary one or more aggregates, and if necessary one or more additives, characterised in that the gypsum-containing construction material compounds contain one or more types of cement and one or more types of pozzolana.
摘要:
The invention relates to a hydrophobing additive in the form of a powder that is redispersible in water or an aqueous dispersion containing a) one or several water-insoluble, film-forming basic polymers based on homopolymers or mixed polymers of one or several monomers from the group comprising vinyl ester of linear or branched alkyl carboxylic acids with 1 to 15 C atoms, methacrylic acid ester and acrylic acid ester of alcohols with 1 to 15 C atoms, vinyl aromatic compounds, olefins, dienes, and vinyl halides, b) one or several hydrophobic compounds from the group comprising organosilicon compounds, fatty acids and the fatty acid derivatives thereof, and hydrocarbon waxes, as well as c) one or several protective colloids. The inventive hydrophobing additive is characterized in that the concentration of component b) is greater than 30 percent by weight relative to the total weight of component a).
摘要:
The invention relates to polymer blends in the form of aqueous dispersions or powders that can be re-dispersed in water, containing: A) one or more polymers of one or more vinyl halides and, where appropriate, of one or more additional ethylenically-unsaturated monomers, and B) one or more vinyl halide-free polymers of one or more ethylenically-unsaturated monomers.