Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Production of continuous or running length
Patent
1992-08-11
1993-11-02
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Production of continuous or running length
264 403, 264 407, 264570, 264167, 264173, 2642098, 425 97, 425113, 4251311, 425132, 425145, 4253261, 425462, B29C 4792
Patent
active
052581608
ABSTRACT:
A process and apparatus for producing an elongated body changing in elastic modulus longitudinally thereof with use of polymers without resulting in variations in the outside and inside diameters of the body even when the polymers are different in extrusion characteristics or swelling characteristics. The apparatus may include a feeder 1 for extruding a first polymer in a molten state and a feeder 2 for extruding a second polymer, which is different from the first polymer in elastic modulus and similarly in a molten state. The feeders alternately discharge the respective polymers, which are continuously fed to a long-land die 5 along with a lubricant supplied from a lubricant applicator 4. The polymers are formed into the desired shape and cooled in the die 5, and thereafter extruded.
REFERENCES:
patent: 2620515 (1952-12-01), Olson
patent: 3724985 (1973-04-01), Burlis et al.
patent: 3752617 (1973-08-01), Burlis et al.
patent: 3928525 (1975-12-01), Fuwa et al.
patent: 4056344 (1977-11-01), Lemelson
patent: 4091064 (1978-05-01), Kakinuma et al.
patent: 4198363 (1980-04-01), Noel
patent: 4211741 (1980-07-01), Ostoich
patent: 4276250 (1981-06-01), Satchell et al.
patent: 4394338 (1983-07-01), Fuwa
patent: 4636346 (1987-01-01), Gold et al.
patent: 4753765 (1988-06-01), Pande
patent: 4888146 (1989-12-01), Dandereau
patent: 4904431 (1990-02-01), O'Maleki
patent: 5059375 (1991-10-01), Lindsay
Week 9122, Derwent Publications, Ltd., London, GB; AN 91-159193 & JP-A 3 093 523 (Mitsubishi Cable Ind. Ltd.) Apr. 18, 1991.
Week 8002, Derwent Publications Ltd., London, GB; AN 80-02779 & JP-A 54 151 614 (Nippon Zeon K.K.) Dec. 29, 1979.
Kaide Tamotsu
Ohtsuji Masaaki
Onishi Kazuo
Utsumi Atsushi
Yamasaki Motohiko
Mitsubishi Cable Industries Ltd.
Thurlow Jeffery
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