Cable with flame retardant multi-layer covering
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United States of America Patent
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Nov 17, 2020
Grant Date -
Jan 11, 2018
app pub date -
Jul 5, 2017
filing date -
Jul 8, 2016
priority date (Note) -
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Abstract
A cable comprising a covering having two or more different sheath layers, with the covering providing superior chemical and weathering resistance, and excellent surface feel. In a preferred embodiment, the outermost sheath layer of the covering is a thermoplastic elastomer essentially free of a flame retardant material, yet the covering achieves desirable flame retardant performance due to the presence of an inner sheath layer comprising a thermoplastic elastomer and a flame retardant, preferably halogen-free flame retardant. The outermost sheath layer also exhibits sought-after surface qualities. Methods for producing the coverings and flame retardant cables are disclosed.
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