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US 4,055,540 AGranted
5-Hydroxydiphenyl sulfoxide compositions
AssigneeThe B. F. Goodrich Company
InventorDwight William Chasar
Life of this patent
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Abstract
Polyolefins are stabilized against heat and light degradation by including in said polyolefins an unsymmetrical 5-hydroxydiphenyl sulfoxide.
Claims8
A polyolefin containing a stabilizing amount of a 5-hydroxydiphenyl sulfoxide of the formula ##STR9## wherein R.sub.1 is hydrogen, R.sub.2 is a lower alkyl or halogen as defined, wherein R.sub.3 is hydrogen or a lower alkyl, R.sub.5 is lower alkyl from 1 to 6 carbon atoms, R.sub.6 is hydrogen or lower alkyl and R.sub.7 is hydrogen or lower alkyl from 1 to 6 carbon atoms.
Dependencies are inferred from the claim text.