Process for extruding synthetic resin and die for use therein

Details Process for extruding synthetic resin and die for use therein Process for extruding synthetic resin and die for use therein

1978-07-14

1980-08-12

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

4251335, 425461, 425466, B29B 500

Patent

active

042173221

ABSTRACT:
A process for extruding a synthetic resin while restricting the resin flow by positively furnishing the resin flow path surface of an extruding die near its resin flow outlet with frictional resistance relative to the resin disclosed also is an extruding die for practicing the above-described method.

REFERENCES:
patent: 1234017 (1917-07-01), Hanley, Jr.
patent: 1438231 (1922-12-01), Goodenberger
patent: 2403476 (1946-07-01), Berry et al.
patent: 3080608 (1963-03-01), Van Riper
patent: 3125620 (1964-03-01), Skinner
patent: 3256560 (1966-06-01), Adomaitis
patent: 3294882 (1966-12-01), Lutzmann et al.
patent: 3549735 (1970-12-01), Moss
patent: 3559239 (1971-02-01), Work et al.
patent: 3994654 (1976-11-01), Chyu

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