Method for the preparation of a polymeric mixture for cable...

Details Method for the preparation of a polymeric mixture for cable... Method for the preparation of a polymeric mixture for cable...

C - Chemistry, Metallurgy

08

L

C08L 67/02 (2006.01) C08L 67/03 (2006.01) C08L 71/00 (2006.01) C08L 83/00 (2006.01) H01B 3/42 (2006.01)

Patent

CA 2081791

-1- Method for the preparation of a polymeric mixture for cable insulators and coatings and sheaths for optic fiber cables; polymeric mixture thus produced and the cables containing it. The method is characterized in that one completely mixes, up to the obtainment of a homogeneous composition, (i) from 50 to 80 parts (w/w) of a first thermoplastic polymer which is amorphous, highly resistant to flames and combustion, and consists of an aromatic polyester of isophthalic and terephthalic acid with bisphenol A, and (ii) from 20 to 50 parts (w/w) of at least a second thermoplastic polymer consisting of an elastomeric polyether-ester block copolymer, having a Shore D hardness greater than 50 and a Vicat softening point greater than 170°C, for a mixing time less than 10 minutes.

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