Battery separator with porous body and fused rib

Details Battery separator with porous body and fused rib Battery separator with porous body and fused rib

1972-12-21

1977-01-18

Walton, Donald L.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With reshaping or surface embossing of formed article

264119, 264126, 429147, H01M 214

Patent

active

040037584

ABSTRACT:
Battery separators with degradation resistant rib areas are produced from nonwoven mats of thermoplastic fibers by substantially fusing the fibers in raised regions of the mat. The fusion is progressively lessened toward the base of the rib. The rib is formed by the application of heat and pressure. The mat is also supplied with other important characteristics such as small pore size during treatment to compact its fibers.

REFERENCES:
patent: 1357378 (1920-11-01), Boyer
patent: 2482062 (1949-09-01), Hanson
patent: 2626429 (1953-01-01), Merrill
patent: 2850559 (1958-09-01), Stickel
patent: 3440108 (1969-04-01), Hefftner
patent: 3704198 (1972-11-01), Prentice
patent: 3765948 (1973-10-01), Johnson

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