Process for producing boron nitride
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 1, 2003
Grant Date -
Jun 20, 2002
app pub date -
Sep 27, 2001
filing date -
Aug 6, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a polycrystalline hexagonal boron nitride compound comprising fine crystals of the order of nanometers. The present invention also provides a hexagonal boron nitride characterized in that the boron nitride is 20 to 200 nm in mean particle size and comprises at least 80 wt. % of particles having sizes in the range of the mean particle size.+-.30%. The present invention further provides a fine hexagonal boron nitride powder characterized in that the powder comprises particles in the form of circular disks or elliptical disks having a minor axis La, a major axis Lb and a thickness t which satisfy the following expressions. 50 nm.ltoreq.La.ltoreq.Lb.ltoreq.400 nm 20 nm.ltoreq.t.ltoreq.150 nm t.ltoreq.La 0.5.ltoreq.La/Lb.ltoreq.1.0.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully