HEAT-RESISTANT WIRE OR CABLE WITH IMPROVED OPERATIONAL PROPERTIES Russian patent published in 2014 - IPC C08G65/00 C08G65/34 C08G65/40 C08L71/00 H01B3/00 H01B3/04 H01B3/30 H01B3/42 

FIELD: chemistry.

SUBSTANCE: invention relates to a heat-resistant wire or cable with improved operational properties designed for use in demanding or extreme conditions, for example in well drilling or field development, in industrial, military aerospace, naval fields, as well as in the motorcar, railway and public transport. Such cables can be subjected to extreme temperatures, corrosive substances or atmospheres or fire. The wire or cable comprises a conductor and a polymer sheath consisting of an internal and an external layer. One layer is tape made of polyetheretherketone (PEEK) and has thickness of 5-150 mcm. The second layer is fire-resistant and is made of a siloxane polymer or a polymer based on silicon dioxide as a polymer matrix. The PEEK tape can be combined with a mica layer or a layer which is polymer tape with mica particles.

EFFECT: invention increases fire-resistance of the sheath, its flexibility and resistance to mechanical stress, enables to obtain a wire or cable with a lower weight and diameter.

12 cl, 5 dwg