Fuel cell component sealant

Details Fuel cell component sealant Fuel cell component sealant

1991-01-16

1992-05-05

Dixon, Jr., William R.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 30, 429 46, H01M 208

Patent

active

051106914

ABSTRACT:
A butyl rubber/ethylene propylene latex sealant for use in fuel cells is disclosed. The sealant is comprised of between about 50 wt % and about 99 wt % butyl rubber and about 10 wt % to about 50 wt % ethylene propylene latex. Conventional fillers can be added to the sealant to attain or enhance various properties such as: desired viscosity, specific gravity, stability, strength, oxidation resistance, and accelerated cure.

REFERENCES:
patent: 3395047 (1968-07-01), Terry et al.
patent: 4863535 (1989-09-01), More
Ethylene-Propylene (EPDM) Latex EP-603A, Burke-Palmason Chemical Company, Feb. 1987, pp. 1-5.
Butyl Latex BL-100, Burke-Palmason Chemical Company, Aug. 1984, pp. 1-18.

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