Piperidine-spiro-hydantoin derivatives and their use as polymer

Details Piperidine-spiro-hydantoin derivatives and their use as polymer Piperidine-spiro-hydantoin derivatives and their use as polymer

1979-06-05

1980-08-26

Taylor, Hosea E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 458N, 260 4585B, 544207, 546 20, C07D47110, C08K 534

Patent

active

042194652

ABSTRACT:
Novel piperidine-spiro-hydantoin derivatives represented by the general formula (I) and use thereof as light stabilizers for synthetic polymers are described: ##STR1## The compounds are distinguished by an improved stabilizing effect in various synthetic polymer compositions, such as polyolefins, against light- and/or heat-induced deterioration thereof, small volatility upon heat-processing or during storage of shaped articles containing the compounds, and resistance to extraction with water and solvents.

REFERENCES:
patent: 3925376 (1975-12-01), Chalmers et al.
patent: 3975462 (1976-08-01), Murayama et al.
patent: 4086204 (1978-04-01), Cassandrini et al.
patent: 4097587 (1978-06-01), Soma et al.
patent: 4108829 (1978-08-01), Cassandrini et al.
patent: 4162246 (1979-07-01), Soma et al.

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