Mixtures Of Diphosphinic Acids And Dialkylphosphinic Acids, A Process For The Preparation Thereof And The Use Thereof

摘要

The invention relates to mixtures of at least one diphosphinic acid of the formula (I);in whichR1, R2 are the same or different and are each independently H, C1-C18-alkyl, C2-C18-alkenyl, C6-C18-aryl, C7-C18-alkylaryl,R5 is C1-C18-alkylene, C2-C18-alkenylene, C6-C18-arylene, C7-C18-alkylarylenewith at least one dialkylphosphinic acid of the formula (II);in whichR3, R4 are the same or different and are each independently C1-C18-alkyl, C2-C18-alkenyl, C6-C18-aryl and/or C7-C18-alkylaryl.;The invention also relates to a process for preparing these mixtures and to the use thereof.

主权项

1. A mixture of at least one diphosphinic acid of the formula (I) wherein R1, R2 are the same or different and are H, C1-C18-alkyl, C2-C18-alkenyl, C6-C18-aryl or C7-C18-alkylaryl, R5 is C1-C18-alkylene, C2-C18-alkenylene, C6-C18-arylene or C7-C18-alkylarylene with at least one dialkylphosphinic acid of the formula (II) wherein R3, R4 are the same or different and are C1-C18-alkyl, C2-C18-alkenyl, C6-C18-aryl, C7-C18-alkylaryl or mixtures thereof.