Stabilized moulding material

Details Stabilized moulding material Stabilized moulding material

1978-12-20

1980-04-01

Taylor, Hosea E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4575R, 260 4575W, 260 458A, 260 458N, 260 4585R, 260 4595J, C08K 509, C08K 513, C08K 515, C08K 534

Patent

active

041961102

ABSTRACT:
Mono- or bistetrazoles of the formula I ##STR1## wherein n is 1 or 2, R.sup.1 represents hydrogen or a monovalent hydrocarbon radical and R represents a monovalent or divalent hydrocarbon radical which can be interrupted by oxygen, NY, sulfur, SO.sub.2 and/or CO.sub.2 or substituted by OH or SH, and wherein Y represents hydrogen or a monovalent hydrocarbon radical. These compounds, especially when used in combination with epoxy plasticizers and/or metal salt stabilizers, are outstanding heat stabilizers for chlorine-containing thermoplastics, especially for PVC. Particular interest attaches to the combinations of tetrazoles with epoxy plasticizers, for example epoxidized soya bean oil, which constitute a metal-free stabilizer system.

REFERENCES:
patent: 2985619 (1961-05-01), Roos et al.
patent: 3007895 (1961-11-01), Roos et al.
patent: 3222317 (1965-12-01), Kauder
patent: 3458472 (1969-07-01), Kauder
patent: 3867325 (1975-02-01), Hutton
patent: 3888818 (1975-06-01), Deblandre et al.

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