Stabilized thermoplastic polyurethanes

Details Stabilized thermoplastic polyurethanes Stabilized thermoplastic polyurethanes

1974-11-06

1976-04-27

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4585R, 260 4585T, C08K 513

Patent

active

039533875

ABSTRACT:
Thermoplastic polyurethanes prepared by means of an organotin catalyst and particularly those derived from cyclic nitrile compounds and polyhydroxyl-containing compounds are stabilized against thermal degradation by incorporating therein a stabilizer system comprised of a combination of a carboxylic acid and a sterically hindered phenolic compound.

REFERENCES:
patent: 3087900 (1963-04-01), Brown
patent: 3087901 (1963-04-01), Brown
patent: 3179625 (1965-04-01), Ehrhart
patent: 3351608 (1967-11-01), Oertel
patent: 3385820 (1968-05-01), Finlay
patent: 3395114 (1968-07-01), Smith
patent: 3401145 (1968-09-01), Rogers
patent: 3446771 (1969-05-01), Matsubayashi
patent: 3494880 (1970-02-01), Austin
patent: 3538046 (1970-11-01), Oertel
patent: 3637553 (1972-01-01), Keberle

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