Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1979-05-11
1981-05-12
Hoke, V. P.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
252400A, 260 4575W, 260 458N, C08K 534
Patent
active
042670837
ABSTRACT:
Vinyl chloride polymers are heat-stabilized by formulating therewith heat-stabilizing amounts of (i) an organometallic salt couplet, (ii) at least one organic .beta.-diketone having the structural formula R.sub.1 --CO--CHR.sub.3 --CO--R.sub.2 and (iii) a substituted dihydropyridine having the structural formula: ##STR1## in which formulae R is alkyl or alicyclic having up to 20 carbon atoms, or phenyl, each R.sub.1 and R.sub.2, which can be identical or different, is a member selected from the group comprising hydrogen, a linear or branched chain alkyl or alkenyl radical having up to 36 carbon atoms, an aralkyl radical having from 7 to 36 carbon atoms, and an aryl or cycloaliphatic radical having up to 14 carbon atoms, with the proviso that R.sub.1 and R.sub.2 cannot both be hydrogen, and R.sub.3 is hydrogen or --CO--X, wherein X is R, or --NH--Y, with Y being aryl.
REFERENCES:
patent: 4102839 (1978-07-01), Crochemore et al.
Hoke V. P.
Rhone-Poulenc Industries
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