Nickel stabilizers for synthetic polymers

Details Nickel stabilizers for synthetic polymers Nickel stabilizers for synthetic polymers

1976-03-03

1978-03-07

Hoke, V. P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

260 4575W, C08K 552, C08K 553

Patent

active

040779025

ABSTRACT:
Mixtures consisting of a compound of the formula I ##STR1## wherein either R.sub.1 represents a hydroxyl group and R.sub.2 represents hydrogen or R.sub.1 represents hydrogen and R.sub.2 represents a hydroxyl group, R.sub.3 and R.sub.4 independently of one another represent hydrogen or alkyl, and n represents a value from 0 to 2, and a compound of the formula II ##STR2## wherein R.sub.5 represents alkyl, cycloalkyl, aralkyl, aryl or aralkyl or aryl groups which are mono-, di or tri-substituted by hydroxyl, alkyl, chlorine and/or alkoxy groups, alkoxy, cycloalkoxy, aralkoxy, aryloxy or aralkoxy or aryloxy which are mono-substituted or di-substituted in the aryl radical by alkyl, chlorine and/or alkoxy, R.sub.6 represents hydrogen, alkyl, cycloalkyl, aralkyl, aryl or aralkyl or aryl groups which are mono-, di- or tri-substituted by hydroxyl, alkyl, chlorine and/or alkoxy groups, alkoxy, cycloalkoxy, aralkoxy, aryloxy or aralkoxy or aryloxy which are mono-substituted or di-substituted in the aryl radical by alkyl, chlorine and/or alkoxy, and m represents a value from 0 to 2.5, are valuable for stabilizing polymeric substrates.

REFERENCES:
patent: 3189630 (1965-06-01), Smutny
patent: 3312658 (1967-04-01), Kamijo et al.
patent: 3692738 (1972-09-01), Mathis et al.
patent: 3824192 (1974-07-01), DiBattista et al.

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