Synergistic heat stabilizer compositions containing an antimony

Details Synergistic heat stabilizer compositions containing an antimony Synergistic heat stabilizer compositions containing an antimony

1979-01-02

1980-11-04

Padgett, Benjamin R.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252400R, 252404, 260 23XA, 260 4575B, 260 4585H, C09K 1532, C09K 1514, C09K 1508

Patent

active

042318955

ABSTRACT:
The combination of a conventional antimony--or bismuth-containing heat stabilizers with certain aromatic esters or aryloxides containing boron, phosphorus, silicon, antimony, tin or zinc interacts synergistically to provide an unexpectedly high level of heat stability to halogen-containing polymers such as polyvinyl chloride (PVC). In addition the aromatic ester or aryloxide inhibits spontaneous degradation of the heat stabilizing component in the presence of heat and/or light.

REFERENCES:
patent: 2161024 (1939-06-01), Doolittle
patent: 2461531 (1949-02-01), Cox et al.
patent: 2680726 (1954-06-01), Weinberg et al.
patent: 2684956 (1954-07-01), Weinberg et al.
patent: 2801988 (1957-08-01), Fischer et al.
patent: 3399220 (1968-08-01), Remes et al.
patent: 3466261 (1969-09-01), Niederhofheim
patent: 3493536 (1970-02-01), Weisfeld
patent: 3530158 (1970-09-01), Leebrick et al.
patent: 3887508 (1975-06-01), Dieckmann
patent: 4029618 (1977-06-01), Dieckmann

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