Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1992-10-19
1993-11-16
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
264514, 2642098, 4251331, 4253261, 425462, B25C 4726
Patent
active
052621090
ABSTRACT:
A system and process for producing a tubular multilaminate film having a plurality of bonded resin sheets. At least one of the sheets is formed from an annular resin stream of spirally extruded resin and at least one of the sheets is formed from an annular resin stream of non-spirally extruded resin.
REFERENCES:
patent: 3966377 (1976-06-01), Upmeier
patent: 4042661 (1977-08-01), Cook
patent: 4182603 (1980-01-01), Knittel
patent: 4224272 (1980-09-01), Klein
patent: 4281981 (1981-08-01), Feldman
patent: 4298325 (1981-11-01), Cole
patent: 4395221 (1983-07-01), Herrington
patent: 4687430 (1987-08-01), Morris et al.
H. H. Winter and H. G. Fritz, Design of Dies for the Extrusion of Sheets and Annular Parisons: The Distribution Problem, published in ANTEC '84, pp. 49-51.
James River II Inc.
Lampe Thomas R.
Thurlow Jeffery
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