Method for waterproofing with a cross-linked macromolecular waterproofing agent
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United States of America Patent
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Mar 22, 1994
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N/A
app pub date -
Dec 2, 1992
filing date -
Jun 9, 1987
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Abstract
A waterproofing agent for an optical or electric cable, formed of a cross-linked macromolecular compound containing a sulfonic acid group or a salt thereof in an amount of not less than 0.5 mg. equivalent/g and a dissociating group in an amount of not less than 1.0 mg. equivalent/g, and a method for waterproofing said cable by packing said waterproofing agent in the sheath of said cables.
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