Plastic and nonmetallic article shaping or treating: processes – Random variegated coloring during molding
Patent
1981-07-29
1983-07-26
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
Random variegated coloring during molding
264 75, 264245, 26432814, 26432818, 425208, 425379R, 425548, 425550, B29F 102
Patent
active
043953760
ABSTRACT:
An injection moulding machine has a reciprocable and rotatable screw which is water cooled internally. This enables the temperature of the machine to be precisely controlled. This further enables the required plasticization of the resin granules with limited mixing of the same, so that multi-color effects can be achieved. FIG. 5 shows the waterways in the screw and the rotating supply connections.
REFERENCES:
patent: 2746089 (1956-05-01), Hendry
patent: 3674401 (1972-07-01), Annis, Jr. et al.
patent: 3738420 (1973-06-01), Poux et al.
patent: 3945786 (1976-03-01), Bishop
patent: 4042660 (1977-08-01), Bishop
patent: 4183448 (1980-01-01), Nash
patent: 4299792 (1981-11-01), Nunn
patent: 4306848 (1981-12-01), Nunn
Crayonne Limited
Marshall, Jr. C. O.
Thurlow Jeffery R.
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