Polyester compositions, method of manufacture, and uses thereof

12−mm+1322−nxm+1 2 166103 110610A composition is described, comprising: (a) from 20 to 80 wt % of a polyester; (b) from 5 to 35 wt % of a flame retardant phosphinate of the formula (I) [(R)(R)(PO)-O]M  (I), a flame retardant diphosphinate of the formula (II) [(O-POR)(R)(POR-O)]M  (II), and/or a flam...

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Bibliographic Details
Main Authors Elango, Somasundaram, Konduri, Rama, Pal, Subodh Kumar, Sinha, Reema, Srinivasan, Veeraraghavan, van der Weele, Chris, de Wit, Gerrit
Format Patent
LanguageEnglish
Published 29.05.2012
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Summary:12−mm+1322−nxm+1 2 166103 110610A composition is described, comprising: (a) from 20 to 80 wt % of a polyester; (b) from 5 to 35 wt % of a flame retardant phosphinate of the formula (I) [(R)(R)(PO)-O]M  (I), a flame retardant diphosphinate of the formula (II) [(O-POR)(R)(POR-O)]M  (II), and/or a flame retardant polymer derived from the flame retardant phosphinate of the formula (I) or the flame retardant diphosphinate of the formula (II), wherein Rand Rare identical or different and are H, C-C-alkyl, linear or branched, or C-C-aryl; Ris C-C-alkylene, linear or branched, C-C-arylene, -alkylarylene or -arylalkylene; M is an alkaline earth metal, alkali metal, Al, Ti, Zn, Fe, or boron; m is 1, 2, 3 or 4; n is 1, 2, or 3; and x is 1 or 2; (c) from 1 to 25 wt % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; (d) from more than 0 to 25 wt % of a polyetherimide; and (e) optionally, an additive.