Embossed thermoplastic material

Details Embossed thermoplastic material Embossed thermoplastic material

1980-12-15

1982-08-10

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428167, 428174, 428179, 428332, 428337, B32B 330, B32B 328

Patent

active

043438482

ABSTRACT:
An embossed thermoplastic film characterized in that one surface of the film is provided with a plurality of rows of protuberances having the shape of pyramids with square bases which extend perpendicular to both the longitudinal and the transverse axes of the film. The protuberances are joined at the edge of the bases by flat valley portions which intersect each other at right angles. The embossed film has a low coefficient of friction and increased embossed thickness.

REFERENCES:
patent: Re23910 (1954-12-01), Smith et al.
patent: 3137746 (1964-06-01), Seymour et al.
patent: 3484835 (1969-12-01), Trounstine et al.
patent: 3760940 (1973-09-01), Bustin
patent: 3911187 (1975-10-01), Raley

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