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US 6,489,382 B1Granted
Preparations of solids containing graft copolymers
AssigneeBayer Aktiengesellschaft
InventorsHeinz Giesecke, Bernd Hauschel, Peter-Roger Nyssen, Dirk Pfützenreuter
Life of this patent
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Abstract
Preparations of solids comprising a) at least one particulate solid and b) a water-dispersible graft copolymer built up from at least one hydrophobic, ethylenically unsaturated monomer, optionally one or more ethylenically unsaturated hydrophilic monomers, and at least one natural protective colloid or protective colloid obtained from a natural protective colloid by derivatization or thermal, enzymatic, oxidative, hydrolytic or bacteriological degradation having an average molar mass of Mn>500 g/mol.
Claims20
A composition comprising
- a) at least one particulate solid
- and
- b) a water-dispersible graft copolymer built up from at least one hydrophobic, ethylenically unsaturated monomer, optionally one or more ethylenically unsaturated hydrophilic monomers, and at least one natural protective colloid or protective colloid obtained from a natural protective colloid by derivatization or thermal, enzymatic, oxidative, hydrolytic or bacteriological degradation having an average molar mass of Mn>500 g/mol.
A composition comprising
- a) at least one particulate solid,
- b) a water-dispersible graft copolymer build up from at least one hydrophobic, ethylenically unsaturated monomer, optionally one or more ethylenically unsaturated hydrophilic monomers, and at least one natural protective colloid or protective colloid obtained from a natural protective colloid by derivatization or thermal, enzymatic, oxidative, hydrolytic or bacteriological degradation having an average molar mass of Mn>500 g/mol,
- c) at least one dispersant and
- d) optionally water and/or an organic medium.
1 more element
Dependencies are inferred from the claim text.