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. 14, 2016
Filed:
Nov. 02, 2005
Vimal K. Pujari, Northboro, MA (US);
William T. Collins, Auburn, MA (US);
Jeffrey J. Kutsch, Oxford, MA (US);
Thomas M. Clere, Orchard Park, NY (US);
Eugene A. Pruss, Hamburg, NY (US);
Vimal K. Pujari, Northboro, MA (US);
William T. Collins, Auburn, MA (US);
Jeffrey J. Kutsch, Oxford, MA (US);
Thomas M. Clere, Orchard Park, NY (US);
Eugene A. Pruss, Hamburg, NY (US);
Saint-Gobain Ceramics & Plastics, Inc., Worcester, MA (US);
Abstract
The present invention relates to a method for making a hexagonal boron nitride slurry and the resulting slurry. The method involves mixing from about 0.5 wt. % to about 5 wt. % surfactant with about 30 wt. % to about 50 wt. % hexagonal boron nitride powder in a medium under conditions effective to produce a hexagonal boron nitride slurry. The present invention also relates to a method for making a spherical boron nitride powder and a method for making a hexagonal boron nitride paste using a hexagonal boron nitride slurry. Another aspect of the present invention relates to a hexagonal boron nitride paste including from about 60 wt. % to about 80 wt. % solid hexagonal boron nitride. Yet another aspect of the present invention relates to a spherical boron nitride powder, a polymer blend including a polymer and the spherical hexagonal boron nitride powder, and a system including such a polymer blend.