Plastic article or earthenware shaping or treating: apparatus – Continuous filament forming or film casting means with...
264103, 264184, 264203, 264245, 425 71, 425377, 425404, D01D 506
An apparatus for making aromatic heterocyclic polymeric fibers having enhanced compressive strength is disclosed. Individual polymeric fibers, while being made according to otherwise conventional methods, are full twisted as they are drawn from a spinnerette hole so that their internal fibrils and microfibrils become entangled. The twisting is performed before coagulation of the fibers. The entangled fibrils and microfibrils are believed to provide mutual support to adjacent fibrils/microfibrils to resist buckling under compression.
patent: 1151487 (1915-08-01), Loewe
patent: 1366162 (1921-01-01), Clayton
patent: 1389517 (1921-08-01), Kitsee
patent: 1685640 (1928-09-01), Leaver
patent: 2046670 (1936-07-01), Beattey
patent: 2150354 (1939-03-01), Berndt
patent: 2545869 (1951-03-01), Bailey
patent: 2972221 (1961-02-01), Wilke et al.
patent: 3161706 (1964-12-01), Peters
patent: 3412191 (1968-11-01), Kitajima et al.
patent: 3529323 (1970-09-01), Hughey
patent: 3558757 (1971-01-01), Denyes et al.
patent: 3840630 (1974-10-01), Yamada et al.
patent: 4019311 (1977-04-01), Schippers
patent: 4154856 (1979-05-01), Akin
patent: 4263245 (1981-04-01), Tan
patent: 4285899 (1981-08-01), Pavy et al.
patent: 4370290 (1983-01-01), Makino et al.
patent: 4395210 (1983-07-01), Hama
patent: 4460526 (1984-07-01), Makino et al.
patent: 4668448 (1987-05-01), Weber et al.
patent: 4726922 (1988-02-01), Cochran et al.
patent: 4971539 (1990-11-01), Luckey
patent: 5102601 (1992-04-01), Farris et al.
S. Kumar and T. E. Helminiak, "Compressive Strength of High Performance Fibers", in The Materials and Science Engineering of Rigid-Rod Polymers, edited by W. W. Adams et al, Materials Research Society Symposium Proceedings, vol. 134, Pittsburgh Pa. (1989).
S. Kumar, W. W. Adams and T. E. Helminiak, "Uniaxial Compressive Strength of High Modulus Fibers for Composites", in Journal of Reinforced Plastics and Composites, vol. 7, Mar. 1988, pp. 108-119.
S. R. Allen, "Mechanical and Morphological Correlations in Poly(P-Phenylenebenzobisthiazole) Fibers," AFWAL-TR-83-4065, Defense Technical Information Center (DTIC) No. AD-B077601. (Jul. 1983).
Adams Walter W.
Helminiak Thaddeus E.
Sinder Fredric L.
Singer Donald J.
The United States of America as represented by the Secretary of
Woo Jay H.
Apparatus for extruding a single aromatic heterocyclic polymeric does not yet have a rating. At this time, there are no reviews or comments for this patent.If you have personal experience with Apparatus for extruding a single aromatic heterocyclic polymeric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for extruding a single aromatic heterocyclic polymeric will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1987649