Complexes of metal salts of hydroxybenzoic acids and piperidines

Details Complexes of metal salts of hydroxybenzoic acids and piperidines Complexes of metal salts of hydroxybenzoic acids and piperidines

1978-10-10

1981-01-27

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260 458N, 260 4575N, 544 64, 544129, 544130, 546187, 546188, 546189, 546190, 546191, 546207, 546208, 546214, 546221, 546222, 546223, 546224, 546226, 546227, 546238, 546239, C07F 1504, C07F 1506, C07F 306

Patent

active

042476941

ABSTRACT:
The invention relates to metal salts of hydroxybenzoic acids which are complexed with a 4-amino-polyalkylpiperidine derivative or to mixed metal salts of a hydroxybenzoic acid and a polyalkylpiperidine carboxylic acid which may be complexed or not with an 4-amino-polyalkylpiperidine. The metal cation may be that of a di- or trivalent metal such as Ni, Co, Al, Zn or Ca. From hydroxybenzoic acids the 3,5-di-tert.butylbenzoic acid is preferred.
These salts are valuable light stabilizers for plastics, especially for polyolefins, styrene polymers and polyamides or polyurethanes respectively. The salts show a strong tendency to retain water. For high compatibility with plastics a low water content is of importance.

REFERENCES:
patent: 3189630 (1965-06-01), Smutny
patent: 3684765 (1972-08-01), Matsui et al.
patent: 3901931 (1975-08-01), Rasberger et al.
patent: 3904581 (1975-09-01), Murayama
patent: 3939168 (1976-02-01), Cook
patent: 3948852 (1976-04-01), Rasberger et al.
patent: 4033928 (1977-07-01), Randell et al.
patent: 4186267 (1980-01-01), Rasberger

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