Plastic and nonmetallic article shaping or treating: processes – Utilizing special inert gaseous atmosphere or flushing mold...
Patent
1992-12-03
1994-02-22
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Utilizing special inert gaseous atmosphere or flushing mold...
26421117, 264345, D01D 1002, D01F 626
Patent
active
052884457
ABSTRACT:
This invention aims at improvement of heat-treatment technology for manufacture of large amounts of polybenzazole fibers. The fibers are heat treated in a device that provides for a rapid, cocurrent, countercurrent or both cocurrent and countercurrent flow of heat treatment gas.
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Alexander Willard E.
Chau Chieh-Chun
Rosenberg Steven
Tani Katsuya
Brumm Margaret M.
Tentoni Leo B.
The Dow Chemical Company
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