3,5-Disubstituted-4-hydroxybenzyl derivative

Details 3,5-Disubstituted-4-hydroxybenzyl derivative 3,5-Disubstituted-4-hydroxybenzyl derivative

1972-05-26

1977-07-26

Hines, Robert V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2605709, 260611A, 260624R, 260570R, C07C 3700

Patent

active

040383270

ABSTRACT:
A new series of compounds having the following formula is disclosed: ##STR1## wherein R.sub.1 and R.sub.2 are independently aralkyl or alkyl with the proviso that the aralkyl group contains no branching on the carbon alpha to the phenylene group and the alkyl group contains no branching on the carbon alpha to the phenylene group but has at least one branch on the carbon beta to the phenylene group; R.sub.3 is hydroxy, --OR.sub.4 or ##STR2## R.sub.4, R.sub.5, and R.sub.6 are alkyl, cycloalkyl, aralkyl, aryl, or alkaryl and R.sub.6 may additionally be hydrogen; said compounds are useful as antioxidants for polyolefins.

REFERENCES:
patent: 3006969 (1961-10-01), Koetitz
patent: 3052728 (1962-09-01), Rocklin
patent: 3081335 (1963-03-01), Morris et al.
patent: 3091645 (1963-05-01), Rocklin
patent: 3496211 (1970-02-01), Dexter et al.

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