Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Making hole or aperture in article
Patent
1972-02-09
1977-03-22
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Making hole or aperture in article
264167, 264289, 264293, 264DIG47, 264DIG81, B28B 148, D01D 520
Patent
active
040137520
ABSTRACT:
A method of manufacturing a reticulate polymer sheet having a set of filaments extending across the sheet and intersecting in molecularly oriented integral junctures with a second set of filaments comprising stretching a net-like structure in the longitudinal direction at least 3 to 1 and in the transverse direction at least 4 to 1 to provide a total stretch of from 12 to 1 to 40 to 1 to substantially uniformly molecularly orient the entire sheet.
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Doviak Peter L.
Kalwaites Frank
Johnson & Johnson
Woo Jay H.
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