Process for preparing phosphite-isocyanurates oligomers

Details Process for preparing phosphite-isocyanurates oligomers Process for preparing phosphite-isocyanurates oligomers

1983-04-19

1985-10-08

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D40312, C07D40314

Patent

active

045461805

ABSTRACT:
A process for preparing certain phosphite-isocyanurate oligomers. The process requires the reaction of a trishydroxyalkyl isocyanurate with a tris-organophosphite and, optionally, an alcohol or alkylphenol. The process is promoted by an alkaline catalyst such as sodium methoxide. The oligomeric product is useful as a thermal stabilizer in polymer compositions.

REFERENCES:
patent: 3121082 (1964-02-01), Guttag
patent: 4085283 (1978-04-01), Den Otter et al.
patent: 4096114 (1978-06-01), Minagawa et al.
patent: 4140660 (1979-02-01), Den Otter et al.
patent: 4287339 (1981-09-01), Valdiserri

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