Patent ID: 11912898
Assignee: CABOT CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  H | IPC C

Claim 0:
1. A coating composition, comprising:
a millbase dispersion comprising a solvent and a resin,
wherein up to 0.5 wt % of at least one carbon nanonstructure (CNS)-derived material dispersed in the millbase dispersion and selected from the group consisting of: carbon nanostructures, fragments of carbon nanostructures, fractured carbon nanotubes, and any combination thereof,
wherein the carbon nanostructures or fragments of carbon nanostructures include a plurality of multiwall carbon nanotubes that are crosslinked in a polymeric structure by being branched, interdigitated, entangled and/or sharing common walls,
wherein the fractured carbon nanotubes are derived from the carbon nanostructures and are branched and share common walls with one another, and
wherein a Brookfield viscosity of the millbase dispersion measured at room temperature at 10 rpm is less than 3000 cP,
the resin is selected from the group consisting of acrylic, methacrylic, alkyd, polyester, urethane, epoxy, vinyl-chloride copolymer, phenolic, epoxy bisphenol-A, epoxy novolac, polystyrene resins, styrene-acrylic resins, polyvinyl butyral, polyolefin, and cellulosic resins, and either
A) when the coating composition is tested according to Evaluation Method A, the resulting cured coating has a value of L* of at least 30, or
B) when the coating composition is tested according to Evaluation Method B, the resulting cured coating exhibits transparency greater than 55% and resistivity (ohm/sq) satisfying log10(surface resistivity)<0.005(transparency)2−0.52(transparency)+19, where transparency is given as a percent.