Phenolic antioxidants for synthetic polymers

Details Phenolic antioxidants for synthetic polymers Phenolic antioxidants for synthetic polymers

1976-12-23

1978-08-15

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4595C, 260456NS, 560 75, 560140, C08K 541, C08K 513, C07C 6978, C07C14100

Patent

active

041071379

ABSTRACT:
This invention relates to compounds of formula Q--O--R--O--Q wherein Q represents a substituted or unsubstituted 2-(2-hydroxybenzyl) phenyl group, and R is a residue of a di- or tri-basic, organic or inorganic acid. Compounds in accordance with the invention can be used as stabilizers for plastics materials, in particular to provide them with thermal stability and stability against ultra violet light. The low volatilities of these compounds compared with the analogous di-phenols Q--O--H render them of particular value.

REFERENCES:
patent: 3255136 (1966-06-01), Hecker
patent: 3579561 (1971-05-01), Meltsner
patent: 3862211 (1974-01-01), Havinger

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