Thermoplastic polyurethanes prepared with small amounts of monoh

Details Thermoplastic polyurethanes prepared with small amounts of monoh Thermoplastic polyurethanes prepared with small amounts of monoh

1976-03-11

1978-07-04

Cockeram, H.S.

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...

264176R, 264DIG77, 528 76, C08G 1830, C08G 1876

Patent

active

040987728

ABSTRACT:
The processing temperatures of thermoplastic polyurethane elastomers are reduced, and the extrudability and the sensitivity to degradation by shear and by moisture are improved, by including a minute proportion (from 0.0005 to 0.05 equivalents, per equivalent of isocyanate) of a monohydric aliphatic alcohol in the reaction mixture (diisocyanate, polymeric diol and difunctional extender) employed to prepare thermoplastic polyurethane elastomers by the one-shot procedure.

REFERENCES:
patent: 3178300 (1965-04-01), Gemeinhardt et al.
patent: 3294713 (1966-12-01), Hudson et al.
patent: 3405077 (1968-10-01), Pastor et al.
patent: 3641199 (1972-02-01), Niederhauser et al.
patent: 3875086 (1975-04-01), Ramey et al.

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