Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting
Patent
1977-02-23
1979-01-16
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Forming continuous work followed by cutting
264175, 264210R, 264284, 264288, 264DIG47, B32B 310
Patent
active
041349512
ABSTRACT:
An extruded sheet or the like of cold-drawable polymer such as polypropylene is embossed as a molten sheet by a circumferentially multi-grooved roller and stretched in the direction of the embossed grooves to split into filaments along the grooves.
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Dow James
Lloyd Ronald
Patchell Albert G.
Conlin David G.
Goldberg Robert L.
Smith & Nephew Polyfabrik Limited
Woo Jay H.
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