Patent ID: 8212148

Claim:
An article comprising a plurality of core tubes, a water-blocking layer, a metal conduit, and an outer jacket wherein the article is cable, electrical wire, or electronic wire; the core tube comprises one or more conductors; each conductor is surrounded by an insulating wall; the insulating wall is surrounded by the water-blocking layer; the metal conduit surrounds the water-blocking layer; the metal conduit optionally has coated thereon a fourth polymer layer; the outer jacket disposes around the metal conduit; the water-blocking layer is a film or sheet or tape; the water-blocking layer comprises or is produced from a water-adsorbing polymer; and the fourth polymer comprises or is produced from a first polymer, a second polymer, and optionally a third polymer; the first polymer comprises an ethylene copolymer; the second polymer comprises a polyacrylic acid or its salt or cross-linked polymer thereof, a polymethacrylic acid or its salt or cross-linked polymer thereof, or combinations of two or more thereof; and the third polymer comprises polyvinyl alcohol, polyacrylamide, partially hydrolyzed polyacrylamide, or combinations of two or more thereof.