Method for stabilizing an organic material using a hindered pipe

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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252403, C08K 53435, C09K 1522

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active

055062865

ABSTRACT:
A hindered piperidine compound represented by the formula of ##STR1## wherein R.sup.1 is a 2,2,6,6-tetramethyl-4-piperidyl group of which the N-position is substituted or not, a hydrogen atom, a C.sub.1 -C.sub.18 alkyl group which may contain a cyclic portion, or a C.sub.7 -C.sub.18 arylalkyl group, R.sup.2 is a hydrogen atom, a C.sub.1 -C.sub.10 alkyl group which may contain a cyclic portion, a C.sub.1 -C.sub.18 alkyloxy group which may contain a cyclic portion, or a hydroxyl group, and n is an integer of 2 to 8, effectively stabilizes organic materials having a property to deteriorate by the action of light. A method for producing the compound represented by the above formula is also disclosed.

REFERENCES:
patent: 4153596 (1979-05-01), Oertel et al.
patent: 4468488 (1984-08-01), Minagawa et al.
patent: 4665185 (1987-05-01), Winter et al.
Chemical Abstracts, vol. 118, No. 39632n, 1993.
Chemical Abstracts, vol. 115, No. 232088f, 1991.

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