Novel polyalkylpiperidyl-ureas and their use as stabilizers

Details Novel polyalkylpiperidyl-ureas and their use as stabilizers Novel polyalkylpiperidyl-ureas and their use as stabilizers

1982-02-23

1983-10-25

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 99, 546187, 546190, 546244, 546245, C08K 534, C07D21156, C07D21192

Patent

active

044120214

ABSTRACT:
Polyalkylpiperidyl-ureas of the formula I ##STR1## in which m is 1-4, X, R.sup.2 and R.sup.3 are monovalent substituents and R.sup.1 is a m-valent radical, can be prepared from the corresponding 4-aminopiperidines by reaction with carbamoyl chlorides. They are outstanding stabilizers for plastics, and especially for polyolefins, to protect them against degradation by the action of light.

REFERENCES:
patent: 3684765 (1972-08-01), Matsui et al.
patent: 4166813 (1979-09-01), Soma et al.
patent: 4191683 (1980-03-01), Brunetti et al.
patent: 4223147 (1980-09-01), Oertel et al.
patent: 4260689 (1981-04-01), Rody et al.

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