申请人:SCM Corporation
公开号:US04183879A1
公开(公告)日:1980-01-15
Disclosed are novel diphosphonic acids and diphosphonic acid esters of para-menthane which may be prepared by reacting .alpha.-pinene or .beta.-pinene with a dialkyl hydrogen phosphite under effective free-radical conditions. These products are potentially useful as flame retardants and are useful as treating agents for improving the pigmentary properties of pigmentary titanium dioxide in thermoplastic formulations.
揭示了一种新型的对蒎烷二膦酸和对蒎烷二膦酸酯,可以通过在有效的自由基条件下,将α-蒎烯或β-蒎烯与二烷基氢膦酸酯反应制备而成。这些产品可能作为阻燃剂,并可作为处理剂用于改善热塑性配方中颜料性二氧化钛的颜料性能。