Thermoplastic elastomers

C - Chemistry – Metallurgy – 08 – G

Patent

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402/157, 402/186

C08G 18/44 (2006.01) C08G 18/32 (2006.01) C08G 18/66 (2006.01) C08G 63/42 (2006.01) C08G 69/40 (2006.01)

Patent

CA 2036410

- 12 - O.Z. 0050/41420 Abstract of the Disclosures In thermoplastic elastomers selected from the group consisting of the thermoplastic polyurethanes, of the polyetheresters and of the poly- etheramides which are derived from polyetherpoly- carbonatediols as diol components, the polyetherpoly- carbonatediols used are reaction products of phosgene, dialkyl carbonates having C1-C4-alkyl groups or cyclic carbonates having C2-C4-alkylene bridges or mixtures thereof with mixtures of a1) from 10 to 100 mol % of polyoxytetramethylenediol having a number average molecular weight ?n of from 150 to 500 and a2) from 0 to 90 mol % of polyoxyalkylenediols which differ from a1) and have C2-C8-alkylene groups, aliphatic alkanediols of 2 to 14 carbon atoms, alicyclic alkanediols of 3 to 14 carbon atoms or alkylene oxides of 2 or 3 carbon atoms, or mixtures thereof.

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