| abstract |
A polymer comprising a thermoplastic polymer obtained by homopolymerization or copolymerization of 1-butene monomer, or a mixture of a thermoplastic polymer obtained by homopolymerization or copolymerization of 1-butene monomer and one or more compatible thermoplastic polymers Part (a), a polydiorganosiloxane (b) having a minimum Williams plasticity of 30 as measured by the ASTM 926 test method and having an average of at least 2 alkenyl groups per molecule, and an average of at least 2 hydrogen per molecule A method for producing a flexible pipe from a composition comprising an organohydrido silicon compound (c) having a silicon atom directly bonded to an atom and a hydrosilylation catalyst (d), comprising: (i) a compound in the presence of a catalyst (d) Cured polydiorgana obtained by crosslinking of (b) and (c) Supplying nosiloxane (B1), (ii) dispersing the cured polydiorganosiloxane (B1) in the polymer part (a) to obtain a thermoplastic elastomer, and (iii) the thermoplastic elastomer, for example, , Forming a flexible pipe by extrusion. The thermoplastic elastomer used and the resulting pipe meet the requirements of standard KTW-270 (A) in the context of drinking water contamination. |