Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ
Patent
1988-03-31
1990-02-27
Lorin, Hubert C.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
21050023, 21050027, 21050028, 264203, 2642091, 26421115, 26421116, D01D 5247
Patent
active
049044265
ABSTRACT:
A process for preparing microporous poly(etheretherketone)-type fibers comprising forming an extrusion mixture of at least one unsulphonated poly(etheretherketone)-type polymer and a solvent comprising at least one organic compound consisting predominantly of carbon and hydrogen, wherein the organic compound has a molecular weight of between about 160 and 450, contains at least one six membered aromatic ring structure, possesses a boiling point of between about 240 and 480 degrees Celsius, and is capable of dissolving at least about 10 weight percent of the poly(etheretherketone)-type polymer present at the extrusion temperature, extruding to form solid or hollow fibers, conveying the fibers through at least one quench zone, conveying the fibers through at least one leach zone, and drying the fibers, wherein the fibers so formed possess interconnecting or non-interconnecting pores.
REFERENCES:
patent: 4118363 (1978-10-01), Smith
patent: 4320224 (1982-03-01), Rose et al.
patent: 4331798 (1982-05-01), Stanilard
patent: 4419486 (1983-12-01), Rose
patent: 4456740 (1984-06-01), Holubka et al.
patent: 4540684 (1985-09-01), Stoltefuss et al.
patent: 4711945 (1987-12-01), Daniels
patent: 4714725 (1987-12-01), Hendy et al.
patent: 4721732 (1988-01-01), Dubrow et al.
Hawley, Gessner G., "The Condensed Chemical Dictionary", 10th Ed., Van Nostrand Reinhold Co., N.Y., pp. 305 & 700.
ICI Advanced Materials, "Victrex Peek, A Guide to Grades for Injection Molding".
Bishop et al., "Solubility and Properties of a Poly(Aryl Ether Ketone) in Strong Acids", Macromolecules 1985, ACS, vol. 18, pp. 86-93.
Jin et al, "A Sulphonated Poly(Aryl Ether Ketone)", Dept. of Polymer Science and Engineering, Univ. of Massachusetts, Amherst, MA, 7 pages.
H. W. Hill., "Polymers Containing Sulfur", Enc. of Chem. Tech. vol. 18, pp. 793-814, John Wiley and Sons, N.Y. (1982).
J. Davis, "Composites, High Performance," Enc. of Chem Tech Supplemental vol., pp. 260-281, John Wiley and Sons, N.Y. (1984).
Dr. Klaus Dahl (Raychem Corporation), "Heat Resistant Semicrystalline Poly(phenylene ether ketones): Melt Processable High Performance Polymers," Industrial Affiliates Symposium on High Performance Polymers, Department of Chemistry and Chemical Eng., Stanford Univ., Dec. 3-5, 1986.
Beck Henry N.
Lundgard Richard A.
Lorin Hubert C.
The Dow Chemical Company
LandOfFree
Process for the production of fibers from poly(etheretherketone) does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the production of fibers from poly(etheretherketone), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of fibers from poly(etheretherketone) will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-172426