02-03-2017 дата публикации
Номер: US20170058164A1
Принадлежит:
The present invention relates to a thermoplastic polyurethane, wherein the thermoplastic polyurethane is obtainable by a method comprising the steps of 1. A thermoplastic polyurethane prepared by a method comprising the steps of:a) reacting a mixture comprising at least one polyester polyol and at least one polyisocyanate; andb) reacting the reaction product of step a) with a substituted or unsubstituted diol which contains at least a primary and a secondary OH group.3. The thermoplastic polyurethane according to claim 2 , wherein Rto Rare the same or different from each other and are selected from H claim 2 , substituted alkyl or unsubstituted alkyl.4. The thermoplastic polyurethane according to claim 2 , wherein n is 0 to 6 and m is 0 to 4.5. The thermoplastic polyurethane according to claim 2 , wherein the substituted or unsubstituted diol of formula I is selected from the group consisting of 1 claim 2 ,2-propanediol claim 2 , 1 claim 2 ,2-butanediol claim 2 , 1 claim 2 ,3-butanediol claim 2 , 1 claim 2 ,2-pentanediol claim 2 , 1 claim 2 ,3-pentanediol claim 2 , 1 claim 2 ,4-pentanediol claim 2 , 2-methyl-1 claim 2 ,3-propanediol claim 2 , 2 claim 2 ,2 claim 2 ,4-trimethyl-1 claim 2 ,3-pentanediol claim 2 , 1 claim 2 ,2-hexanediol claim 2 , 1 claim 2 ,3-hexanediol claim 2 , 1 claim 2 ,4-hexanediol claim 2 , 1 claim 2 ,5-hexanediol claim 2 , 2-ethyl-1 claim 2 ,3-hexanediol claim 2 , 1 claim 2 ,2-heptanediol claim 2 , 1 claim 2 ,3-heptanediol claim 2 , 1 claim 2 ,4-heptanediol claim 2 , 1 claim 2 ,5-heptanediol claim 2 , 1 claim 2 ,6-heptanediol claim 2 , 1 claim 2 ,2-octanediol claim 2 , 1 claim 2 ,3-octanediol claim 2 , 1 claim 2 ,4-octanediol claim 2 , 1 claim 2 ,5-octanediol claim 2 , 1 claim 2 ,6-octanediol claim 2 , 1 claim 2 ,7-octanediol claim 2 , and combinations thereof.6. The thermoplastic polyurethane according to claim 1 , wherein the at least one polyester polyol of step a) comprises a polyester polyol having a number average molecular weight (M) of ...
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