Polyalkylpiperidine compounds

Details Polyalkylpiperidine compounds Polyalkylpiperidine compounds

1983-09-29

1986-02-11

Bond, Robert T.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 23, 546187, 546188, 546189, 544 98, 544 99, 544100, 544103, C07D49110

Patent

active

045699976

ABSTRACT:
By reacting compounds of the formula ##STR1## with diisocyanates or triisocyanates of the formula R.sup.4 (NCO).sub.n at a low temperature, the corresponding 1-carbamyl compounds of the formula I ##STR2## in which n is 2 or 3 and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined in claim 1, are obtained. The compounds of the formula 1 are light stabilizers for organic materials, especially for varnishes.

REFERENCES:
patent: 3527762 (1970-09-01), Jack et al.
patent: 3940363 (1976-02-01), Murayama et al.
patent: 4021432 (1977-05-01), Holt et al.
patent: 4247449 (1981-01-01), Wieser et al.

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