| http://www.w3.org/ns/prov#value | - The pentaerythritol diphosphite can be selected from compounds having the formula ##STR1## in which R' and R are the same or different and are selected from C1-20 linear or branched alkyl, C5-20 cycloalkyl, C6-20 aryl, and C2-20 alkoxyalkyl groups, and the halo-substituted derivatives thereof, as well as combinations such as alkaryl containing up to 20 carbon atoms per molecule.
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