Capping board with pultruded filling bars

Details Capping board with pultruded filling bars Capping board with pultruded filling bars

1996-03-08

1997-07-08

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204286, C25D 1706

Patent

active

056457014

ABSTRACT:
An improved capping board is disclosed, for supporting electrodes immersed into an electrolytic cell. This capping board is molded from a plastic resin selected from the group consisting of polytetrafluoroethylene and acid resistant polyester, vinylester, epoxy and phenolic resins. It contains from 3 to 30% by weight of glass fibers, from 2 to 10% by weight of silica, from 2 to 10% by weight of mica and from 2 to 40% by weight of silica rocks, as well as one or more embedded filling bars. Advantageously, such bars are obtained by pultrusion of fibers, preferably glass fibers with a resin, preferably a low curing polyester resin, and they are coated with a surface layer of a resin bonding agent, preferably a silane. The resulting capping bar is more rigid and not subject to overall length curving and shrinkage as are the known capping boards filled with wooden cores.

REFERENCES:
patent: 3763029 (1973-10-01), Karn
patent: 4213842 (1980-07-01), Dufresne
patent: 4479863 (1984-10-01), Honey et al.

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