Novel light stabilizers for plastics

Details Novel light stabilizers for plastics Novel light stabilizers for plastics

1978-11-01

1981-03-17

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4575M, 260 458N, 260 458NT, 260 458NZ, 260 23R, 260 22A, 260 18TN, C08K 534, C08K 535, C08K 509

Patent

active

042566274

ABSTRACT:
Mixtures of a polymer which contains polyalkylpiperidines chemically bonded in any form and a metal compound MeL.sub.w, in which Me is a divalent or trivalent metal ion or a divalent oxo-metal ion or a divalent dialkyl-tin ion, L is the monovalent anion of a carboxylic acid, of a phosphinic acid or of a phosphonic acid monoester or of an enol and w is 2 or 3, are effective light stabilizers for plastics. The piperidine-containing polymers can be, for example, polyesters, polyamides, polyamines, polyaminotriazines or poly(meth)-acrylates. Examples of metal compounds MeL.sub.w are nickel oenanthate or nickel acetylacetonate. Plastics to be stabilized are in particular the polyolefins.

REFERENCES:
patent: 3464943 (1969-09-01), Newland et al.
patent: 3464953 (1969-09-01), Newland
patent: 4086204 (1978-04-01), Cassandrini et al.
patent: 4086207 (1978-04-01), Cassandrini et al.
patent: 4096114 (1978-06-01), Minagawa et al.
patent: 4104248 (1978-08-01), Cantatore
Heller et al., "Pure and Applied Chemistry", 36, 1973, pp. 141-161.
H. Lind, Kunstsoffe 69, 1979.
J. Polymer Science-vol. 12, 2217-2233, (1974), Carlsson et al.

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