Water-soluble and biodegradable copolymers on a polyamide basis and use thereof
AssigneeBASF Construction Polymers GmbH
InventorsMartin Matzinger, Roland Reichenbach-Klinke, Gregor Keilhofer, Johann Plank, Christian Spindler
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Abstract
Copolymers based on a polyamide containing at least one graft lateral chain consisting of ethylenic unsaturated compounds, in construction chemistry, as well as with the prospecting, exploiting and completion of oil-and gas deposits and with deep bore holes.
Claims24
A process comprising preparing a composition by admixing a hydraulic binding agent and a polyamide-based copolymer having a polyamide component and at least one grafted side chain formed from an ethylenic unsaturated compound, wherein the ethylenic unsaturated component is a vinyl-containing compound selected from the group consisting of vinyl ether, acrylic acid, methacrylic acid, 2-ethylacrylic acid, 2-propylacrylic acid, vinylacetic acid, vinylphosphonic acid, crotonic acid, isocrotonic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, an amide thereof and a styrene thereof.
Dependencies are inferred from the claim text.