Heat stabilized halogen-containing polymers

Details Heat stabilized halogen-containing polymers Heat stabilized halogen-containing polymers

1976-06-07

1978-09-05

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457S, 260 458SN, 260 4575W, 260 4585R, C08K 537, C08K 536

Patent

active

041118731

ABSTRACT:
Thermal stability of halogen-containing polymers is improved by incorporation therein of (a) a compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from hydrogen, alkyl, aryl, alkyl- or alkoxy-substituted aryl, aralkyl, alkyl- or alkoxy-substituted aralkyl, or taken together form an alkylene radical of 3 to 9 carbon atoms; R.sub.3 and R.sub.4 are independently selected from alkyl of at least 4 carbon atoms, carbalkoxyalkyl, aryl, alkyl- or alkoxy-substituted aryl, aralkyl, alkyl- or alkoxy-substituted aralkyl or taken together form thiodimethylene, an ortho-arylene radical, an alkyl- or alkoxy-substituted ortho-arylene radical, or an alkylene radical of 2 to 4 carbon atoms; in combination with (b) a divalent metal salt of a carboxylic acid of 7 to 20 carbon atoms, or mixture of such metal salts.

REFERENCES:
patent: 3010937 (1961-11-01), Roos et al.
patent: 3225001 (1965-12-01), Darsa
patent: 3398114 (1968-08-01), Pollock
patent: 3544510 (1970-12-01), Stapfer
patent: 3661844 (1972-05-01), Stapfer
patent: 3890276 (1975-06-01), Stapfer
British Plastics (1954) pp. 176-179.

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