US 12,338,366 B2
Use of rhamnolipids and/or sophorolipids in coating compositions for obtaining a homogeneous colour appearance of the dry coating film and/or for increasing occupational safety in the production of coating compositions
Ellen Reuter, Bochum (DE); Stefan Silber, Krefeld (DE); Petra Allef, Essen (DE); Katrin Roland, Essen (DE); Pedro Cavaleiro, Cologne (DE); Jochen Mergenthaler, Essen (DE); Claudia Jansen, Leverkusen (DE); and Marco Blei, Essen (DE)
Assigned to Evonik Operations GmbH, Essen (DE)
Filed by Evonik Operations GmbH, Essen (DE)
Filed on Dec. 10, 2021, as Appl. No. 17/547,575.
Claims priority of application No. 20214083 (EP), filed on Dec. 15, 2020.
Prior Publication US 2022/0186048 A1, Jun. 16, 2022
Int. Cl. C09D 7/63 (2018.01); C07H 15/06 (2006.01); C09D 7/41 (2018.01)
CPC C09D 7/63 (2018.01) [C07H 15/06 (2013.01); C09D 7/41 (2018.01)] 18 Claims
OG exemplary drawing
 
1. A method of improving a speed of wetting pulverulent formulation constituents in a coating composition, the method comprising:
grinding with grinding bodies at least one solid selected from the group consisting of a filler, a pigment, a dye, an optical brightener, a ceramic material and a magnetic material with at least one rhamnolipid (RL) and/or at least one sophorolipid forming a ground solid in a liquid medium selected from the group consisting of an organic solvent, water and a mixture thereof.