Piperidine derivatives which are stabilizers for synthetic polym

Details Piperidine derivatives which are stabilizers for synthetic polym Piperidine derivatives which are stabilizers for synthetic polym

1980-12-12

1983-01-18

Ford, John M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546188, 544130, 544360, 2602444, C07D40112, C07D40312, C07D41312

Patent

active

043693210

ABSTRACT:
The invention relates to new piperidine compounds which act as light stabilizers, heat stabilizers and oxidation stabilizers for synthetic polymers, in particular for hydrocarbon polymers. The compounds are piperidinol carbamates of the formula: ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and A have the meanings defined in the description and y is an integer from 1 to 4. In particular, A represents a monovalent to tetravalent radical, always bonded to the carboxy-piperidine radicals via nitrogen atoms.

REFERENCES:
patent: 4021432 (1977-05-01), Holt et al.
patent: 4049647 (1977-09-01), Holt et al.
patent: 4102858 (1978-07-01), Minagawa et al.
patent: 4198334 (1980-04-01), Rasberger
patent: 4265805 (1981-05-01), Thomas
patent: 4278683 (1981-07-01), Stoltefuss et al.

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