The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2008
Filed:
Nov. 03, 2005
Donald William Pultz, Jr., Parma, OH (US);
Laurence Maniccia, Lyndhurst, OH (US);
Chandrashekar Raman, North Royalton, OH (US);
Anand Murugaiah, North Olmsted, OH (US);
Donald William Pultz, Jr., Parma, OH (US);
Laurence Maniccia, Lyndhurst, OH (US);
Chandrashekar Raman, North Royalton, OH (US);
Anand Murugaiah, North Olmsted, OH (US);
Momentive Performance Materials Inc., Wilton, CT (US);
Abstract
A process for producing boron nitride of high purity and high thermal conductivity, wherein a oxygen-containing boron compound is reacted with a nitrogen-containing source in the presence of a dopant at a temperature of at least 1000° C. for at least one hour, and wherein the dopant forms metal borate impurities with a vaporizing temperature that is lower than the highest processing temperature in the process.