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US 12,349,676 B2Granted
Particles with biocidal coating
AssigneeInstraction GmbH
InventorsMartin Welter, Christian Meyer, Kristian Lungfiel
Life of this patent
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Abstract
Process for the preparation of particles with antibacterial coating, which comprises the following steps: (a) providing an aqueous suspension containing a polyamine, a crosslinker and a porous organic or inorganic carrier material in particle form at a temperature lower than or equal to 10° C. in a mixer for coating the inorganic carrier material with the polyamine; (b) crosslinking the organic polymer in the pores of the inorganic carrier material and simultaneously removing water.
Claims12
Process for preparing porous particles with an antibacterial coating, wherein the process comprises:
- (a) providing an aqueous suspension containing a polyamine, a crosslinker, and a porous organic carrier material in particle form at a temperature lower than or equal to 10° C. in a mixer;
- (b) coating, in the mixer, the organic carrier material with the polyamine only on an outer surface of the carrier material;
- and
- (c) crosslinking the polyamine only on the outer surface of the porous organic carrier material and simultaneously removing water;
- wherein pores of the porous organic carrier material have a size ranging from 20 nm to 100 nm, and the polyamine has a size of 10,000-20,000 g/mol.
2 more elements
Dependencies are inferred from the claim text.