Basf Se Corporation

Tamal Ghosh

Malcolm Skinner

Céline Hossenlopp

Tiina Luttikhedde

Laurent Brauge

Odair Araujo

Arnaud Lebreton

Dominique Ehlen

Magali Breton

The present invention provides rheology modifiers, which are water-soluble polymers having a weight average molecular weight (Mw) of at least 1,000,000 g/mol and an intrinsic viscosity of at least 2.5 dl/g, both as determined by size exclusion chromatography, and wherein the water-soluble polymers are in the form of solid particles. It also provides mixtures of rheology modifiers comprising a first rheology modifier, which is a water-soluble polymer having a weight average molecular weight (Mw) of at least 1,000,000 g/mol and an intrinsic viscosity of at least 2.5 dl/g, both as determined by size exclusion chromatography, and a second rheology modifier, which has a weight average molecular weight of from 2,000 g/mol to 800,000 g/mol. It also provides coating composition containing the rheology modifiers, respectively, mixtures of rheology modifiers, a process for their preparation, a process for coating a substrate using these coating compositions and substrates coated with these coating compositions.

Rheology modifiers for modifying the rheological behaviour of coating compositions

Growing community of inventors

Hopewell Junction, NY, United States of America

Tamal Ghosh