A process for the production of a thermoplastic elastomer and the thermoplastic elastomer
AssigneeDsm IP Assets B.V.
InventorsEllen VAN HEMELRIJCK, Wilhelmus Petrus Johannes APPEL
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Abstract
A process for the production of a thermoplastic elastomer containing hard segments (a) of a polyester and soft segments (b) containing repeating units derived from an aliphatic carbonate, in which process a precursor thermoplastic elastomer is subjected to solid state post condensation at a temperature between 140 and 170° C. Also claimed is the thermoplastic elastomer.
Claims14
A process for the production of a thermoplastic elastomer containing hard segments (a) of a polyester and soft segments (b) containing repeating units derived from an aliphatic carbonate, wherein in the process a precursor thermoplastic elastomer is subjected to solid state post-reaction at a temperature between 140 and 170° C.
A thermoplastic elastomer containing hard segments (a) of a polyester and soft segments (b) containing repeating units derived from an aliphatic carbonate, wherein the thermoplastic elastomer has a MFI measured at 230° C. under a load of 10 kg (MFI 230° C./10 kg), according to ISO1133 (2011) of at most 40.
Dependencies are inferred from the claim text.