Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1991-05-28
1993-05-18
Thurlow, Jeffrey
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
264 407, 264245, 4251311, 4251335, 425197, 425462, B29C 4714
Patent
active
052118983
ABSTRACT:
The present invention feeds a plurality of different molten resin jet streams into a T die adapted to produce film members such as plastic films. A plurality of molten jet streams extruded from a plurality of extruders, respectively, are fed from their predetermined directions into one resin feed passage in communication with the T die and combined or united without causing the mixture with each other. The relative positional relationship between the intersurfaces between the adjacent molten resin jet streams defined when the molten resin jet streams are combined or united on the one hand and an elongated discharge port of the T die can be adjusted so that the relative positional relationship between a plurality of extruders and the T die can be freely changed.
REFERENCES:
patent: 3743460 (1973-07-01), Woolridge
patent: 3909170 (1975-09-01), Riboulet
patent: 4426344 (1984-01-01), Dinter et al.
patent: 4731004 (1988-03-01), Wenz, Jr.
patent: 4889669 (1989-12-01), Suzuki
Thurlow Jeffrey
Tomy Machinery Manufacturing Co., Ltd.
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