Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting
Patent
1989-06-05
1991-07-02
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Forming continuous work followed by cutting
1621573, 264170, 26417718, 26421112, 264212, 264180, 264184, D01F 660
Patent
active
050283723
ABSTRACT:
A method for producing para-aramid pulp includes forming a liquid, actively-polymerizing solution and subjecting the solution to orienting flow which produces an optically anisotropic liquid solution with polymer chains oriented in the direction of the flow. When the solution has a viscosity sufficient to maintain the orientation of the polymer chains, the solution is incubated until it gels. The gel is cut transversely at intervals and para-aramid pulp is isolated from the gel. Para-aramid pulp produced by the process can be used similarly to pulp produced from spun fiber.
REFERENCES:
patent: 3063966 (1962-11-01), Kwolek et al.
patent: 3767756 (1973-10-01), Blades
patent: 3849074 (1974-11-01), Ficklinger et al.
patent: 3869429 (1975-03-01), Blades
patent: 4342715 (1982-03-01), Shimada et al.
patent: 4374977 (1983-02-01), Fujiwara et al.
patent: 4485062 (1984-11-01), Dawes et al.
patent: 4498957 (1985-02-01), Sasaki et al.
patent: 4511623 (1985-04-01), Yoon et al.
patent: 4814120 (1989-03-01), Huc et al.
patent: 4836507 (1989-06-01), Yang
patent: 4857255 (1989-08-01), Imanishi et al.
Brierre Roland T.
De La Veaux Stephan C.
Geary, Jr. James E.
Memeger, Jr. Wesley
Trancynger Michael L.
E. I. Du Pont de Nemours and Company
Thurlow Jeffery
Vargot Mathieu
LandOfFree
Method for producing para-aramid pulp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing para-aramid pulp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing para-aramid pulp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1245058