Thermoplastic polyurethanes

Details Thermoplastic polyurethanes Thermoplastic polyurethanes

2007-07-10

2007-07-10

Zimmer, Marc S. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S044000, C528S308100, C528S308300, C528S308800

Reexamination Certificate

active

10484576

ABSTRACT:
Thermoplastic polyurethanes are obtainable by reacting (a) isocyanates with (b1) polyesterdiols having a melting point greater than 150° C., (b2) polyetherdiols and/or polyesterdiols, each having a melting point of less than 150° C. and a molecular weight of from 501 to 8000 g/mol, and, if required, (c) diols having a molecular weight of from 62 to 500 g/mol.

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PCT International Search Report.

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