Extrusion stabilization of polypyrrolidone by hydroquinones

Details Extrusion stabilization of polypyrrolidone by hydroquinones Extrusion stabilization of polypyrrolidone by hydroquinones

1976-11-29

1978-07-25

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

264176R, 264211, C08K 513

Patent

active

041028619

ABSTRACT:
Hydroquinone and alkylhydroquinone are thermal stabilization additives for normally solid polypyrrolidone at melt temperatures.

REFERENCES:
patent: 2682563 (1954-06-01), Bell et al.
patent: 2999842 (1961-09-01), Csendes
patent: 3017393 (1962-01-01), Ney, Jr.
patent: 3026301 (1962-03-01), Ney, Jr.
patent: 3052654 (1962-09-01), Roth
patent: 3072615 (1963-01-01), Riedesel
patent: 3260697 (1966-07-01), Babler
patent: 3424821 (1969-01-01), Hunter
patent: 3573244 (1971-03-01), Wilken et al.

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