Abstract: The invention relates to dialkylphosphinic salts of the formula (I) where R1, R2 identical or different, are C1-C6-alkyl, linear or branched M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Zn, Ce, Bi, Sr, Mn, Li, Na, K and/or is a protonated nitrogen base; m is from 1 to 4; wherein the telomer content is from 0.01 to 6% by weight. The invention also relates to glare use in flame retardant compositions, and to flame-retardant polymer molding compositions and flame-retardant polymer moldings which comprise these dialkylphosphinic salts.

Abstract: The invention relates to a flame-retardant polymer molding composition which comprises a nanoparticulate phosphorus-containing flame retardant system which comprises at least one phosphinic salt of the formula (I) and/or diphosphinic salt of the formula (II) and/or their polymers, where R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Zn, Ce, Bi, Sr, Mn, Li, Na, K, and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4.

Abstract: The present invention relates to a compression-granulated flame retardant composition which comprises a phosphinic salt of the formula (I) and/or comprises a diphosphinic salt of the formula (II), and/or comprises their polymers, where R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4, and comprises a fusible zinc phosphinate; and to a process for preparation of this compression-granulated flame retardant composition, and to the use of the composition.

Abstract: The invention relates to a phosphorus-containing flame retardant formulation for cellulose-containing moldings, comprising from 0.1 to 99.9% by weight of a resin of an organic nitrogen compound and from 0.1 to 99.9% by weight of a phosphorus-containing flame retardant.

Abstract: The invention relates to phosphorus-containing flame retardant agglomerates comprising a) from 99.99 to 80% by weight of aggregates and/or primary particles composed of a phosphinic salt of the formula (I) and/or composed of a diphosphinic salt of the formula (II), and/or composed of polymers of these, where R1,R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4 and b) from 0.01 to 20% by weight of auxiliaries. The invention likewise relates to a process for the production of these phosphorus-containing flame retardant agglomerates, and also to polymeric compositions and moldings which comprise these phosphorus-containing flame retardant agglomerates.

Abstract: The invention relates to a process for preparation of salts of dialkylphosphinic acids, which comprises a) reacting hypophosphorous acid and/or its salts with olefins in the presence of a free-radical initiator to give dialkylphosphinic acids and/or their alkali metal salts, in a solvent system, and b) reacting the dialkylphosphinic acids and/or alkali metal dialkylphosphinates obtained in a) with compounds of the metals Mg, Ca, Al, Zn, Ti, Sn, Zr, and/or Fe to give the dialkylphosphinic salts of these metals. The invention also relates to the use of the metal dialkylphosphinic salts obtained by the inventive process, in particular for preparation of flame retardants.

Abstract: The invention related to a flame retardant combination comprising, as component A, a phosphinate of the formula (I) and/or a diphosphinate of the formula (II) and/or polymers of these where F1 and R2 are identical or different and are C1-C8-alcyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C8-10-arylene, -alkylarylene or -arylakylene; M is calcium ions, magnesium ions, aluminum ions and/or zinc ions, m is 2 or 3; n is 1 or 3; x is 1 or 2; and comprising a component B1, B2 and/or B3 wherein B1 is a salt of 1,3,5-triazine compound with polyphosphoric acid and wherein B2 is a melamine polymetaphosphate, and wherein B3 is a composite salt of polyphosphoric acid with malamine, melam and/or melem.

Abstract: The invention relates to flame-retardant thermoset compositions which comprise, as flame retardant, at least one phosphinic salt of the formula (I) and/or a diphosphinic salt of the formula (II) and/or polymers of these (component A) where R1,R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; and x is from 1 to 4, and also comprise as component B at least one synthetic inorganic compound and/or a mineral product. The invention further relates to a process for preparing these flame-retardant thermoset compositions.

Abstract: The invention relates to a flame retardant combination comprising, as component A, a phosphinate of the formula (I) and/or a diphosphinate of the formula (II) and/or polymers of these where R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is calcium ions, magnesium ions, aluminum ions and/or zinc ions, m is 2 or 3; n is 1 or 3; x is 1 or 2; and comprising a component B1, B2 and/or B3 wherein B1 is a salt of 1,3,5-triazine compound with polyphosphoric acid, and wherein B2 is a melamine polymetaphosphate, and wherein B3 is a composite salt of polyphosphoric acid with melamine, melam and/or melem.

Abstract: The invention relates to flame-retardant thermoset compositions which comprise, as flame retardant, at least one phosphinic salt of the formula (I) and/or a diphosphinic salt of the formula (II) and/or polymers of these where R1,R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; and x is from 1 to 4, and also at least one synergistic component from the substance class of the organic or inorganic phosphorus compounds, and at least one synergistic component from the substance class of the nitrogen compounds. The invention further relates to a process for preparing these flame-retardant thermoset compositions.

Abstract: The invention relates to a flame retardant combination comprising, as component A, a phosphinate of the formula (I) and/or a diphosphinate of the formula (II) and/or polymers of these where R1 and R2 are identical or different and are C1-C5-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is calcium ions, magnesium ions, aluminum ions and/or zinc ions, m is 2 or 3; n is 1 or 3; x is 1 or 2; and comprising a component B1, B2 and/or B3 wherein B1 is a salt of 1,3,5-triazine compound with polyphosphoric acid, and wherein B2 is a melamine polymetaphosphate, and wherein B3 is a composite salt of polyphosphoric acid with melamine, melam and/or melem.

Abstract: The invention relates to a novel flame retardant formulation for thermoplastic and thermoset polymers, containing, as flame retardant component A, from 90 to 99.9% by weight of phosphinate salt of the formula (I) and/or a diphosphinate salt of the formula (II) and/or polymers thereof where R1, R2 are the same or different and are each C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na and/or K; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4 and, as component B, from 0 to 50% by weight of a nitrogen-containing synergist or of a phosphorus/nitrogen flame retardant and, as component C, from 0.1 to 10% by weight of a liquid component.

Abstract: The invention relates to flame retardants which comprise titanium phosphinates and/or titanyl phosphinates of the formulae (I) and (II) where R1 and R2 are identical or different and are unsubstituted or substituted linear or branched or cyclic C1-C10-alkyl groups or C6-C10-aryl, C7-C18-alkylaryl, or C7-C18-arylalkyl groups, and R3 is an unsubstituted or substituted linear or branched or cyclic C1-C10-alkylene group, C6-C10-arylene, C7-C18-alkylarylene, or C8-C18-arylalkylene group, and x is a number from 0 to 1.9. The invention also relates to molding compositions which comprise the inventive flame retardant.

Abstract: The invention relates to flame-retardant thermoset composition which comprises, as flame retardant combination, at least one phosphinic salt of the formula (I), and/or one diphosphinic salt of the formula (II), and/or polymers of these (component A), where R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4, and also comprises at least one synergistic halogen-containing component (component B). The invention also relates to a process for preparing these flame-retardant thermoset compositions, and also to their use.

Abstract: The invention relates to a flame retardant combination which comprises, as component A, at least one phosphinic salt of the formula (I), and/or one diphosphinic salt of the formula (II), and/or polymers of these, where R1, R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na; K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4 and also comprises at least one synergistic halogen-containing component as component B.

Abstract: The invention relates to a styrene-hypophosphite adduct of the formula (I)

Abstract: The invention relates to a process for the preparation of (metal) salts of alkylphosphonous acids, which comprises reacting elemental yellow phosphorus with halogen-free alkylating agents in the presence of at least one base. The invention also relates to the use of the (metal) salts of alkylphosphonous acids prepared by this process.

Abstract: The invention relates to novel fusible zinc phosphinates of the formula (I) and/or polymers thereof 1

Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) 1

Abstract: The present invention relates to a process for the preparation of alkylphosphonous acid esters which comprises a) reacting elemental yellow phosphorus with alkylating agents in the presence of a base to give a mixture which comprises, as principal constituents, the (metal) salts of alkylphosphonous, phosphorous and hypophosphorous acids, b) esterifying the principal constituents of the mixture from a) to give an ester mixture, c) isolating the ester of the alkylphosphonous acid from the ester mixture. The invention likewise relates to the use of the alkylphosphonous acid esters prepared by this process as precursors for further syntheses, inter alia for the preparation of crop protection agents.