Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1992-04-03
1994-03-01
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
264565, 2642095, 2642098, 26421121, 264312, 26433117, 425325, 425381, 425466, B29C 4724
Patent
active
052904989
ABSTRACT:
A method of manufacture of an ultra-high molecular weight polyethylene thin-wall pipe which is uniform in thickness and free from a folded mark. The ultra-high molecular weight polyethylene thin-wall pipe is manufactured by supplying ultra-high molecular weight polyethylene into and melting and kneading, continuously extruding the molten substance of the ultra-high molecular weight polyethylene from a die connected to a screw of the screw extruder to form a cylindrical roughly shaped article, and diametrically expanding the cylindrical roughly extruded article by means of a tapered core and taking up.
REFERENCES:
patent: 3244781 (1966-04-01), Covington, Jr. et al.
patent: 3387331 (1968-06-01), Billings
patent: 3891374 (1975-06-01), Ninomiya
patent: 4165354 (1979-08-01), Iida
patent: 4938908 (1990-07-01), Shiraki et al.
patent: 4946371 (1990-08-01), Shiraki et al.
patent: 4987025 (1991-08-01), Shiraki
patent: 5063016 (1991-11-01), Bauer et al.
Hiroshige Kunie
Shiraki Takeshi
Suzuki Iwatosi
Mitsui Petrochemical Industries Ltd.
Thurlow Jeffery
LandOfFree
Ultra-high molecular weight polyethylene thin-wall pipe, and met does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-high molecular weight polyethylene thin-wall pipe, and met, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-high molecular weight polyethylene thin-wall pipe, and met will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-574724