Diphosphines

Diphosphine is of formula: R2-P(R3)-R4-O-A-O-R4-P(R3)-R2 (I) R2, R3 = (cyclo)alkyl or aryl(alkyl) or aryl substd. by halo, alkyl and/or alkoxy; R4 = (cyclo)alkylene, aryl(alkyl)ene or arylene substd. by halo, alkyl, and/or alkoxy; A = CO, SO2, SO-, CO-alkylene-CO or CO-arylene-CO where arylene is op...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JUEPTNER, GUENTER ALFRED, EIFFLER, JUERGEN, FLORES, DAVID P
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Diphosphine is of formula: R2-P(R3)-R4-O-A-O-R4-P(R3)-R2 (I) R2, R3 = (cyclo)alkyl or aryl(alkyl) or aryl substd. by halo, alkyl and/or alkoxy; R4 = (cyclo)alkylene, aryl(alkyl)ene or arylene substd. by halo, alkyl, and/or alkoxy; A = CO, SO2, SO-, CO-alkylene-CO or CO-arylene-CO where arylene is opt. substd. by halo, (cyclo)alkyl, aryl, oxyalkyl, OH, alkoxy and/or CO-(O-R4-PR2R3), and alkylene is opt. substd. by halo, (cyclo)alkyl, aryl, oxyalkyl, OH, alkoxy and/or CO-(CO-R4-PR2R3); or A = P(O)(O-R4-PR2R3), P(O)(R6), Si(R7)(R8), Si(R9)(O-R4-PR2R3) or Si(O-R4-PR2R3)2; and R6-R9 = (cyclo)alkyl, aryl (alkyl) or aryl substd. by halo, (cyclo)alkyl, aryl, oxyalkyl, OH or alkyl. Also claimed are: (a) the prepn. of the above polymer, (b) a polymer compsn. stabilised by the polymer, and (c) a method of stabilising a polymer compsn.