Impermeable silicone composition

Details Impermeable silicone composition Impermeable silicone composition

1974-11-21

1976-06-15

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 28R, 260 37SB, 260 4227, 260827, C08L 9100

Patent

active

039636771

ABSTRACT:
A fluid and ion impermeable, durable, and substantially inert plastic composition containing at least about 50% by weight silicone and the remainder of a fluorocarbon and a wax. The fluorocarbon may be chemically combined or suspended as particles in the silicone, and the pores in the product are filled at least partially with a melted wax such as a natural wax like beeswax or a mineral wax as a micro-crystaline wax or even a synthetic wax as polyethylene. This composition or product is polymerized and/or vulcanized in a mold or the shape in which it is to be used with the aid of a catalyst and/or heat. The product also may contain inert fillers such as diatomaceous earth, silica and/or residues of the catalysts used in its vulcanization or final polymerization.
Because of its impermeability to fluids and the transport of ions this product is used for encapsulating or potting of electrical and electronic apparatus imbedded in moisture containing and/or chemically active environments, such as the body, the ground or earth, and the like.

REFERENCES:
patent: 2927908 (1960-03-01), Konkle et al.
patent: 3069378 (1962-12-01), Prober
patent: 3449290 (1969-06-01), Foster
patent: 3838089 (1974-09-01), Pepe

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