Thermoplastic polyurethanes and their preparation

Details Thermoplastic polyurethanes and their preparation Thermoplastic polyurethanes and their preparation

1997-11-13

1999-06-01

Niland, Patrick D.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

521 49, 521 495, 524589, 528 44, 528 59, 528 60, 528 65, 528 85, C08J 300, C08J 1104, C08K 320, C08L 7500

Patent

active

059088940

ABSTRACT:
Thermoplastic polyurethanes are prepared by reacting (a) isocyanates with (b) compounds reactive toward isocyanates, in the presence or absence of (c) chain extenders, (d) catalysts and (e) customary auxiliaries and additives and adding crosslinked polyurethanes in comminuted form before, during and/or after the reaction.

REFERENCES:
patent: 3549472 (1970-12-01), King et al.
patent: 3935132 (1976-01-01), Gerkin et al.
EPO Search Report & Translation Dated Feb. 24, 1998.

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