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

Claim 6:
7. A coating composition, comprising:
a resin; and
up to 10 wt % on a dry basis of at least one CNS-derived material dispersed in the coating composition 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, and
wherein the fractured carbon nanotubes are derived from the carbon nanostructures and are branched and share common walls with one another,
when tested according to Evaluation Method A, the resulting cured coating has a surface resistivity of at most 10′ ohm/square 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.