Stabilization of thermoplastic polyurethanes derived from cyclic

Details Stabilization of thermoplastic polyurethanes derived from cyclic Stabilization of thermoplastic polyurethanes derived from cyclic

1974-02-27

1976-01-13

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457R, 260 4585, 260 775AA, 260 775B, C08L 7500

Patent

active

039323544

ABSTRACT:
The thermal stability of urethane-type polymeric compounds prepared from cyclic nitrile compounds and nucleophilic compounds by means of a catalyst system containing an organotin compound is improved by treating the polymeric compounds with a tertiary alcohol.

REFERENCES:
patent: 3531425 (1970-09-01), Bank et al.
patent: 3652507 (1972-03-01), Bank et al.
patent: 3702320 (1972-11-01), Writok et al.

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