Alkylated oxo-piperanzinyl-triazine

Details Alkylated oxo-piperanzinyl-triazine Alkylated oxo-piperanzinyl-triazine

1990-03-19

1991-12-10

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D40312

Patent

active

050719815

ABSTRACT:
A stabilizer compound for synthetic resinous materials is a tri-substituted triazine in which each substituent is a N.sup.4 -methylated 2-keto-1,4-diazacyclohexane connected to the triazine ring through an alkylene bridge. This bridge permits efficient methylation of the N.sup.4 atom in every substituent under conditions which yield crystals having at least 90% purity. These crystals may be further purified to at least 95% purity at which purity level they contain less than 500 ppm ash. The stabilization effect of 95% pure compound in a polyacetal is such that, even with an ash content of 50 ppm, it has better stabilization properties than its 99.2% pure precursor (the non-methylated tri-substituted triazine) with an ash content of 10 ppm, as evidenced by lower formaldehyde evolved and better color retention, that is, developing less color in a water white sample after testing at 259.degree. C.

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patent: 4298737 (1981-11-01), Lai et al.
patent: 4480092 (1984-10-01), Lai et al.
patent: 4816507 (1989-03-01), Cantatore et al.

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