Patent ID: 11912891
Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A coating composition comprising an organosilane-functionalised colloidal silica as an aqueous colloid and hollow microspheres, wherein the organosilane-functionalised colloidal silica comprises silica particles with one or more epoxy-silane moieties bound to their surface and having a degree of modification of from about 1 to about 2 molecules of silane per nm2, wherein the hollow microspheres comprise a polymeric shell,
wherein the colloidal silica as an aqueous colloid is present in an amount of from about 7 to about 12 weight percent based on a total weight of the coating composition;
wherein the surface area of the silica particles in the organosilane-functionalised colloidal silica is of from about 20 to about 1500 m2 g−1;
wherein the hollow microspheres are expandable or expanded polymeric microspheres enclosing one or more volatile fluids;
wherein a volume mean diameter of the hollow microspheres is of from about 1 to about 500 μm; and
wherein the polymeric shell is a thermoplastic polymer shell and/or comprises a nitrile-containing monomer.