38064-57-2Relevant academic research and scientific papers
Dual purpose stabilizer compounds and polymer compositions containing same
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, (2008/06/13)
Diesters of partially hindered mercaptophenols and 3,5-di-alkyl-4-hydroxybenzoic acid and its corresponding acid salt, wherein such diester corresponds to the following formula STR1 wherein R and R1 are the same and are selected from among the following STR2 with R6 and R7 being an aliphatic hydrocarbon radical of 3 to 10 carbon atoms; and y being 0-5; R2 is a tertiary aliphatic hydrocarbon radical having from 4 to 10 carbon atoms or an alicyclic hydrocarbon radical having from 4 to 10 carbon atoms, where the carbon atom of attachment to the aromatic ring is fully substituted; R3 is hydrogen, halogen, an aliphatic hydrocarbon radical having from 1 to 10 carbon atoms or an alicyclic hydrocarbon radical having from 3 to 10 carbon atoms; and R4 and R5 is STR3 where WHERE A and A' are independently selected from among hydrogen, an aliphatic hydrocarbon radical of 1 to 10 carbon atoms or an alicyclic hydrocarbon radical of 3 to 10 carbon atoms. The above diesters are highly effective stabilizers of polyolefins against oxidative degradation and also impart a modest degree of protection and such materials against UV degradation.
