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US 4,287,339 AGranted
Phosphite-isocyanurates
AssigneeBorg-Warner Corporation
InventorLeo L. Valdiserri
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Abstract
This invention of the present application relates to the stabilizing component in the stabilization of olefin polymers, especially polypropylene during processing, i.e., at elevated temperatures. The stabilizing component is a phosphite-isocyanurate compound having the structural formula: ##STR1## wherein R is a hydrocarbon radical and R.sup.1 is methyl or hydrogen.
Claims4
A phosphite-isocyanurate compound having the structural formula ##STR3## where R is a hydrocarbon radical having 1-14 carbon atoms and R.sup.1 is methyl or hydrogen.
Dependencies are inferred from the claim text.