Oct 13, 2026

US12759946 - Low temperature carbon/BN/aluminum oxide coating

A method of forming an activated coating composition is disclosed. The method includes providing (a) boron nitride, (b) carbon, (c) aluminum oxide and (d) a liquid carrier. Each of the boron nitride, carbon and aluminum oxide are in particulate form. The coating composition is activated to form an activated coating composition. The activated coating composition includes active components having from about 60.0 wt % to about 90.0 wt % boron nitride, from about 16 wt % to about 24 wt % carbon and from about 4 wt % to about 6 wt % aluminum oxide. A coating method, coated substrate and activated coating composition are also disclosed.

Assignee: Richter Precision, Inc.
Inventors: Aghasi Torosyan, Hans E. Richter, Bikram S. Kamboj
Filing date: 2022-12-12

The patent describes a method for creating an activated coating composition using boron nitride, carbon, aluminum oxide, and a liquid carrier, with specific weight percentages for each component. This activated coating can be applied to substrates, enhancing their properties through the formation of a protective layer.

Claim 1

1 . A method of forming a coating composition, comprising: providing a combination of components consisting essentially of (a) boron nitride, (b) carbon, (c) aluminum oxide and (d) a liquid carrier, each of the boron nitride, carbon and aluminum oxide being in particulate form; and activating the coating composition combination of components to form an activated coating composition; wherein the activated coating composition consists essentially of active components (a), (b) and (c) having from about 60.0 wt % to about 90.0 wt % boron nitride, from about 16 wt % to about 24 wt % carbon and from about 4 wt % to about 6 wt % aluminum oxide and forms a coating upon contact with a substrate; wherein the liquid carrier includes toluene or ammonia. providing a combination of components consisting essentially of (a) boron nitride, (b) carbon, (c) aluminum oxide and (d) a liquid carrier, each of the boron nitride, carbon and aluminum oxide being in particulate form; and activating the coating composition combination of components to form an activated coating composition; wherein the activated coating composition consists essentially of active components (a), (b) and (c) having from about 60.0 wt % to about 90.0 wt % boron nitride, from about 16 wt % to about 24 wt % carbon and from about 4 wt % to about 6 wt % aluminum oxide and forms a coating upon contact with a substrate; wherein the liquid carrier includes toluene or ammonia. wherein the activated coating composition consists essentially of active components (a), (b) and (c) having from about 60.0 wt % to about 90.0 wt % boron nitride, from about 16 wt % to about 24 wt % carbon and from about 4 wt % to about 6 wt % aluminum oxide and forms a coating upon contact with a substrate; wherein the liquid carrier includes toluene or ammonia.

Google Patents

https://patents.google.com/patent/US12759946

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12759946