New phosphonic halogen benzyl esters, their process of manufacture and their application as flame retardants

摘要

New phosphonate with formula br / (see appended drawing in bopi) & br / / p & & p & in which x represents an atom of chlorine or bromine m and n represent the numbers of the x atoms substituents of the aromatic rings and are between 0 and 5. / p & & p & method of manufacturing the phosphonate by condensation of one or several benzyl halides with the 2,2 ′ 1,2 ethane one bis (1,3,2 dioxaphospholane). / p & & p & the new phosphonates can be used for fireproofed of plastic materials (for example, the polyurethanes), the artificial textile, elastomers, etc..