Fiber-containing pasty construction materials
AssigneeWacker Chemie AG
InventorsStefan Ingrisch, Thomas Bastelberger, Jürgen Bezler, Jakob Mühlthaler
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Abstract
The invention relates to fiber-containing pasty construction materials, containing a) one or more fillers, b) optionally additives, characterized in that they contain c) fibers, d) one or more polymers based on one or more ethylenically unsaturated monomers, having a glass transition temperature Tg of ≧−15° C., e) ≦5% by weight hydraulically setting binders and f) water, wherein the information in % by weight relates to the dry weight of the fiber-containing pasty construction materials. The invention also relates to a process for producing a reinforcing composition free of woven reinforcing fabrics.
Claims11
A fiber-containing paste-like building composition containing a) 40% to 80% by weight of one or more fillers, b) optionally 0.1% to 10% by weight of further additives, characterized in that c) 0.1% to 5% by weight of fibers, d) 4% to 17% by weight of one or more polymers based on one or more ethylenically unsaturated monomers and having a glass transition temperature Tg of ≧−15° C., e) ≦5% by weight of hydraulically setting binders and f) 4% to 26% by weight of water are present, where the % by weight is based on the dry weight of the fiber-containing paste-like building composition, and
- the polymers d) are selected from the group consisting of copolymers of one or more vinyl esters with from 1 to 50% by weight of ethylene;
- copolymers of vinyl acetate with from 1 to 50% by weight of ethylene and from 1 to 50% by weight of one or more further comonomers selected from the group consisting of vinyl esters having from 1 to 12 carbon atoms in the carboxylic acid radical;
- copolymers comprising from 30 to 75% by weight of vinyl acetate, from 1 to 30% by weight of vinyl laurate or vinyl esters of an α-branched carboxylic acid having from 9 to 11 carbon atoms and also from 1 to 30% by weight of (meth)acrylic esters of unbranched or branched alcohols having from 1 to 15 carbon atoms, which additionally contain from 1 to 40% by weight of ethylene;
- and copolymers comprising one or more vinyl esters, from 1 to 50% by weight of ethylene and from 1 to 60% by weight of vinyl chloride;
- wherein the figures in % by weight for the respective copolymer add up to 100% by weight,
- wherein 6% to 10% by weight of the one or more polymers d) are present.
A fiber-containing past-like building composition containing a) 40% to 80% by weight of one of more filler, b) optionally 0.1% to 10% by weight of further additives, characterized in that c) 0.1% to 5% by weight of fibers, d) 4% to 17% by weight of one or more polymers based on one or more ethylenically unsaturated monomers and having a glass transition temperature Tg of ≧−15° C., e) ≦5% by weight of hydraulically setting binders and f) 4% to 26% by weight of water are present, where the % by weight is based on the dry weight of the fiber-containing paste-like building composition, and
- the polymers d) are selected from the group consisting of copolymers of one or more vinyl esters with from 1 to 50% by weight of ethylene;
- copolymers of vinyl acetate with from 1 to 50% by weight of ethylene and from 1 to 50% by weight of one or more further comonomers selected from the group consisting of vinyl esters having from 1 to 12 carbon atoms in the carboxylic add radical;
- copolymers comprising from 30 to 75% by weight of vinyl acetate, from 1 to 50% weight of vinyl laurate or vinyl esters of an α-branched carboxylic acid having from 9 to 11 carbon atoms and also from 1 to 30% by weight of (meth)acrylic esters of unbranched or branched alcohols having from 1 to 15 carbon atoms, which additionally contain from 1 to 40% by weight of ethylene and copolymers comprising one or more vinyl esters, from 1 to 50% by weight of ethylene and from 1 to weight of vinyl chloride;
- wherein the figures in % by weight for the respective copolymer add up to 100% by weight,
- wherein only one polymer based on one or more ethylenically unsaturated monomers is present in the composition.
Dependencies are inferred from the claim text.