Method for preparing polybenzoxazole or polybenzothiazole fibers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 9, 1996
Grant Date -
N/A
app pub date -
Aug 5, 1994
filing date -
Aug 5, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a process for preparing polybenzoxazole or polybenzothiazole filaments by extruding a polybenzoxazole or polybenzothiazole dope, drawing the dope filament across an air gap, and coagulating the dope filament; the number of filament breaks can be reduced by placing a stress isolation device after extruding but before coagulating the filament.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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