Laminated microporous article

Details Laminated microporous article Laminated microporous article

1979-05-24

1981-09-08

Bell, James J.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

428283, 428284, 428287, 428297, 428298, 428304, 428308, H01M 216

Patent

active

042885035

ABSTRACT:
A laminated microporous article consisting of at least two layers or plies, the first comprising either a thermoset or thermoplastic microporous material and the second comprising a polyester non-woven, heat bonded (in distinction to adhesive bonded) web. The resulting laminated microporous article is especially useful as a battery separator and exhibits superior properties including improved electrical resistance, toughness and tear strength, and flexibility.

REFERENCES:
patent: 2344614 (1944-03-01), Hulse
patent: 2772322 (1956-11-01), Witt et al.
patent: 3418198 (1968-12-01), Emstman
patent: 3779855 (1973-12-01), Fonzi
patent: 3811957 (1974-05-01), Bunten
patent: 3871938 (1975-03-01), Takahasi et al.
patent: 4201838 (1980-05-01), Goldberg

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