Highly delaminated hexagonal boron nitride powders, process for making, and uses thereof
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorsThomas M. Clere, Séverine M. Labouré
Life of this patent
Estimating the term…
Abstract
The present invention relates to a powder comprising boron nitride particles having an aspect ratio of from about 50 to about 300. The present invention also relates to a method of making delaminated boron nitride powder. This method involves providing boron nitride powder and milling the boron nitride powder in a mixture including a milling media and a milling liquid under conditions effective to produce delaminated boron nitride powder.
Claims27
A powder comprising hexagonal boron nitride platelets having an aspect ratio of from about 50 to about 300.
A method of making delaminated hexagonal boron nitride powder comprising:
- providing hexagonal boron nitride powder, and
- milling the hexagonal boron nitride powder in a milling mixture under conditions effective to produce delaminated hexagonal boron nitride powder having an aspect ratio of from about 50 to about 300.
A polymer processing aid, comprising hexagonal boron nitride platelets having an aspect ratio of from about 50 to about 300 and a fluoropolymer.
A polymer composition, comprising:
- a melt processable polymer and
- a polymer processing aid comprising hexagonal boron nitride platelets having an aspect ratio of from about 50 to about 300 and a fluoropolymer.
Dependencies are inferred from the claim text.