Strippable, silane-curable, semiconducting mixture, in particular for electrical cables, and a method of implementing said mixture
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 28, 1992
Grant Date -
N/A
app pub date -
Oct 3, 1989
filing date -
Oct 13, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconducting mixture which is curable with the aid of silanes includs the following parts by weight: a) 70 to 80 parts of a first copolymer of ethylene, or of ethylene and another olefin, with an ester taken from the group constituted by ethyl acrylate, vinyl acetate, and butyl acetate, with only a fraction lying in the range 60% to 75% of the copolymer being grafted with the aid of silanes; b) 30 to 40 parts of a second copolymer of acrylonitrile and butadiene having about 40% by weight of acrylonitrile; c) 40 to 60 parts of conducting carbon black of the quality satisfying the standard ASTM D 2515-68; d) 15 to 20 parts of monocrystaline wax; and e) 1 part of a phenolic antioxidant. A method of manufacturing a cable having a strippable semiconducting layer constituted by the above mixture includes extruding a first polymeric insulating layer onto an electrically conductive cable, extruding a second semiconducting layer of the above mixture around the first insulating layer, and then simulatenously curing both extruded layers.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully