Smoke retardants for polyvinyl halides and polystyrenes

Details Smoke retardants for polyvinyl halides and polystyrenes Smoke retardants for polyvinyl halides and polystyrenes

1975-10-16

1977-03-08

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4575R, 260 4575V, 260 4575B, 260 4575M, 260 458N, 260 458NZ, 260 458SN, C08K 559, C08K 547, C08K 536

Patent

active

040111946

ABSTRACT:
Metal-2-mercaptobenzothiazoles, metal-2-mercaptobenzoxazoles, and metal-2-mercaptobenzimidazoles are used as smoke retardants for polyvinyl halides and polystyrenes and have the general structure of ##STR1## WHERE R and R.sup.1 can be a hydrogen, alkyl, aryl, alkylaryl or halogen, X is either oxygen, sulfur or NR.sup.2, M is a metal, n is an integer equal to the valence of the metal and R.sup.2 can be a hydrogen, alkyl, aryl or alkylaryl group.

REFERENCES:
patent: 2727879 (1955-12-01), Vincent
patent: 2802811 (1957-08-01), Somerville et al.
patent: 3004949 (1961-10-01), Chevassus
patent: 3333001 (1967-07-01), Albert et al.
patent: 3475372 (1969-10-01), Gable
patent: 3635862 (1972-01-01), Dunn

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