发明名称 |
Alkylated oxo-piperazinyl-triazine. |
摘要 |
<p>A stabilizer compound for synthetic resinous materials is a tri-substituted triazine in which each substituent is a N<4>-methylated 2-keto-1,4-diazacyclohexane connected to the triazine ring through an alkylene bridge. This bridge permits efficient methylation of the N<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 DEG C.</p> |
申请公布号 |
EP0447973(A2) |
申请公布日期 |
1991.09.25 |
申请号 |
EP19910103995 |
申请日期 |
1991.03.15 |
申请人 |
THE B.F. GOODRICH COMPANY;E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SON, PYONG NAE;LAI, JOHN TA-YUAN;SMITH, PETER DEAN;KOSINSKI, LEONARD EDWARD RAYMOND |
分类号 |
C07D403/14;C08K5/3477;C08K5/3492 |
主分类号 |
C07D403/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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