Piperidine compounds and their use as thermal stabilizers

Details Piperidine compounds and their use as thermal stabilizers Piperidine compounds and their use as thermal stabilizers

1988-10-13

1990-05-22

Lee, Mary C.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

544113, 544180, 544194, 544244, 544215, 252401, 252402, 252403, 524 83, 524100, 546 22, 546 24, 546186, 546244, C08J 534, C09K 1516, C07D25140

Patent

active

049279254

ABSTRACT:
Compounds of formula (I) ##STR1## in which R.sub.1 is hydrogen, O.sup.., CN, NO, cyanomethyl, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.12 -alkenyl or C.sub.3 -C.sub.12 -alkynyl subject to the proviso that the carbon atom attached to the nitrogen atom is a primary carbon atom, C.sub.7 -C.sub.12 -aralkyl, C.sub.1 -C.sub.12 -acyl, 2,3-epoxypropyl, OH-monosubstituted C.sub.2 -C.sub.6 -alkyl or 2,3-dihydroxypropyl, R.sub.2 is hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.5 -C.sub.18 -cycloalkyl, C.sub.6 -C.sub.18 -aryl or C.sub.7 -C.sub.18 -aralkyl, R.sub.3 is C.sub.6 -C.sub.18 -aryl or a group of the formula (II) ##STR2## in which R.sub.1 is as defined above, n is an integer from 1 to 4 and R.sub.4 is an organic or inorganic radical of a valency equal to n are useful for stabilizing organic material against oxidative, thermal and/or light induced degradation.

REFERENCES:
patent: 4021471 (1977-05-01), Virgilio et al.
patent: 4140673 (1979-02-01), Lachmann et al.
patent: 4803234 (1989-02-01), Cantatore et al.
M. Dagonneau et al., J. Macromol. Sci., Rev. Macromol. Chem. Phys., 22(2), 169 (1982).

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