Hindered five-membered nitrogen rings as polyolefin stabilizers

Details Hindered five-membered nitrogen rings as polyolefin stabilizers Hindered five-membered nitrogen rings as polyolefin stabilizers

1977-06-06

1978-09-05

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 23H, 260 4585B, 2603262, 26032625, C08K 534

Patent

active

041119010

ABSTRACT:
Olefin polymers stabilized against deterioration caused by exposure to ultraviolet radiation. The stabilization is effected by means of an additive which is a hindered five-membered nitrogen ring. The five-membered ring is a substituted pyrrolidine or pyrroline having ester or amide groups. The compounds are characterized by excellent hydrolytic stability.

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patent: 3478053 (1969-11-01), Szmuszkovicz
patent: 3645965 (1972-02-01), Murayama et al.
patent: 3840494 (1974-10-01), Murayama et al.
patent: 3971757 (1976-07-01), Rasberger
patent: 3976658 (1976-08-01), Avar et al.

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