Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1992-12-10
1994-05-10
Morgan, Kriellion S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 96, 524 98, 540460, 540492, 544113, 544120, 544123, 544357, 544408, 546187, 252401, 252403, C07D40112, C07D40114, C08K 534
Patent
active
053107675
ABSTRACT:
The present invention relates to novel tetramethylpiperidine compounds of the formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, R.sub.2 and R.sub.3 are e.g. --(CH.sub.2).sub.2 --, R.sub.4 is e.g. --CO--, --COCO-- or --COCH.sub.2 CO--, n is e.g. 1 and R.sub.5 is e.g. hydrogen or allyl.
These compounds are suitable for use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.
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Borzatta Valerio
Vignali Graziano
Ciba-Geigy Corporation
Hall Luther A. R.
Morgan Kriellion S.
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