Electricity: conductors and insulators – Conduits – cables or conductors – Combined
Patent
1987-11-06
1989-07-18
Kendell, Lorraine T.
Electricity: conductors and insulators
Conduits, cables or conductors
Combined
174 23C, 174 84R, 428375, 428379, 428383, H02G 1504, H02G 1508
Patent
active
048495794
ABSTRACT:
A mineral oil-free cured cable splice encapsulant comprises between about 20% and about 60% polyurethane, by weight of the cured encapsulant, the balance comprising diluent(s) and/or plasticizers, and typically has a cure and typically has a cure time of at least 50 minutes at 25.degree. C. The relatively long cure time, together with other properties of the material, including a viscosity typically between 150 and 1500 centipose, and relatively good "bonding" to plastic-insulated conductors, results in improved water-intrusion resistance of splices enveloped in the novel encapsulant.
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Chapin John T.
Sabia Raffaele A.
American Telephone and Telegraph Company AT&T Bell Laboratories
Kendell Lorraine T.
Pacher Eugen E.
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