Patent ID: 8404161
Filing Date: 2013-03-26
Classification: C08G,C08K,C08L,Y10T

Abstract:
1. A hydroxyphenyl or alkoxyphenyl phosphine oxide composition comprising: (i) from about 10 to about 50 wt % of a first mixture of mono-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers each having the formula (I): (ii) from about 30 to about 60 wt % of a second mixture of bis-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers each having the formula (II): (iii) from about 10 to about 50 wt % of a third mixture of tris-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers each having the formula (III): iv) 0 to 10 mol % of triphenyl phosphine oxides of the formula IV: wherein R is hydrogen or an alkyl group containing from 1 to 6 carbon atoms, R