Amerace Corporation

Mahendra Shah

Bruce S Goldberg

As an article of manufacture, a microporous flexible shape or sheet of a sulfur-free, cured polymeric material of a curable rubber, an ethylene-propylene copolymer or mixtures of the curable rubber and ethylene-propylene copolymer; the article possesses an average pore size of less than 2 microns, a predetermined flexibility, and improved toughness, when compared to prior art sulfur cured articles.

Flexible, microporous rubber base articles

A continuous process for preparing a microporous flexible shape or sheet of a sulfur-free, cured polymeric material of a curable rubber, an ethylene-propylene copolymer or mixtures of the curable rubber and ethylene-propylene copolymer of a predetermined flexibility ranging from a drapable, conformable shape to a stiff material; electron beam curing of the curable polymeric material at low irradiation levels is one advantage of the continuous process as well as the capability of producing also backed materials using considerably thinner polymeric material layers thereon; the products obtained thereby are suitable as battery separators.

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Newark, NJ, United States of America

Mahendra Shah