Mineral oil extended polyurethane system containing a coupling a

Details Mineral oil extended polyurethane system containing a coupling a Mineral oil extended polyurethane system containing a coupling a

1975-11-17

1977-02-15

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 312N, 260 318C, 260 318H, 260 328N, 260 336UB, C08K 501, C08K 507, C08K 510

Patent

active

040081974

ABSTRACT:
This invention provides a method of sealing and purging contaminants from the internal free spaces of an insulated electrical device by forcing into said free spaces a low viscosity material that acts to displace fluid contaminants from within said free spaces. The material later cures in situ to form a hydrophobic seal with good electrical properties. Also disclosed herein is a method for rehabilitating waterlogged plastic insulated multiconductor communications cables of the type employed in telephone systems.

REFERENCES:
patent: 3755241 (1973-08-01), Brady
patent: 3846355 (1974-11-01), Mayer
patent: 3886111 (1975-05-01), Yashimura et al.

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