Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-04-03
1981-12-08
Foelak, Morton
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 458NT, 260 4585B, 260 4595H, C08K 534
Patent
active
043047122
ABSTRACT:
Method for extending the useful life of dienic polymers which are sensitive to oxidative degradation. According to this method such polymers are combined with a stabilizer effective amount of at least one tetrahydro-1,5-benzodiazapene compound of the formula: ##STR1## wherein R.sub.1 through R.sub.4 are independently selected from the group consisting of hydrogen, alkyl of 1 to 12 carbon atoms, cycloalkyl, aryl, aralkyl, provided further that R.sub.3 and R.sub.4 can collectively form a cyclic, alicyclic, aromatic or heterocyclic ring pendant from the two position of the above compound and R.sub.1 and R.sub.2 can collectively form an alicyclic ring.
The polymeric compositions formed from dienic polymers and the above stabilizer are highly suitable to use in the preparation of components for the automotive and electronics markets.
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Herbert et al., J. Chem. Soc., Perkin I, 1974, pp. 2657-2661.
Faro John H.
Foelak Morton
The B. F. Goodrich Company
White R. A.
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