Piperidino pyrrolidinones

Details Piperidino pyrrolidinones Piperidino pyrrolidinones

1980-04-24

1982-01-05

Bond, Robert T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546208, 546 5, 546 19, 546210, 542437, 544221, 544222, 260458NP, 260458NH, C07D40104, C07D40114, C07D40112

Patent

active

043095461

ABSTRACT:
Pyrrolidiones of the formula I ##STR1## wherein n is 1, 2, 3 or 4, R.sub.1 is free or esterified hydroxyl or hydroxyl which has been converted to a salt or is substituted or unsubstituted amino, X is a direct bond or a linking member and Pip is a substituted or unsubstituted 2,2,6,6-tetraalkylpiperidin-4-yl or a 2,2,6,6-tetraalkylpiperidin-4-ylidene, which pyrrolidones can be oligomerized or polymerized by linking R.sub.1 with X or by linking R.sub.1 with Pip. These compounds are used as light stabilizers for polymers.

REFERENCES:
patent: 2993021 (1961-07-01), Bavley et al.
patent: 3904581 (1975-09-01), Murayama et al.
patent: 4138243 (1979-02-01), Bohner et al.

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