Patent number: 8772519
Abstract: The invention relates to a process for preparing mono-allyl-functionalized dialkylphosphinic acids, esters and salts with allylic compounds, characterized in that a) a phosphinic acid source (I) is reacted with olefins (IV) in the presence of a catalyst A to give an alkylphosphonous acid, or salt or ester thereof (II), b) the alkylphosphonous acid, or salt or ester thereof (II) thus formed is reacted with allylic compounds of the formula (V) in the presence of a catalyst B and of a base to give a mono-allyl-functionalized dialkylphosphinic acid derivative (III), where R1, R2, R3, R4, R5, R6, R7, R8, R9 are the same or different and are each independently, inter alia, H, C1-C18-alkyl, C6-C18-aryl, C6-C18-aralkyl, C6-C18-alkylaryl, and X is H, C1-C18-alkyl, C6-C18-aryl, C6-C18-aralkyl, C6-C18-alkylaryl, Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Zn, Ce, Bi, Sr, Mn, Cu, Ni, Li, Na, K and/or a protonated nitrogen base, and the catalysts A and B are transition metals and/or transition metal compounds and/or catalyst syst
Type:
Grant
Filed:
October 6, 2009
Date of Patent:
July 8, 2014
Assignee:
Clariant Finance (BVI) Limited
Inventors:
Michael Hill, Werner Krause, Martin Sicken
Publication number: 20140128516
Abstract: A flame retardant-stabiliser combination for thermoplastic polymers, containing as component A: 50 to 90% by weight of a monoaryl phosphinic acid salt of the general formula (I), where R1 is an unsubstituted or substituted C6-C15 aryl group or a C7-C16 alkyl aryl group or a C7-C16 aryl alkyl group; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonized nitrogen base; as component B: 5 to 50 wt % of a nitrogen-containing synergist and/or a phosphorus/nitrogen flame retardant; as component C: 0 to 10 wt % of magnesium oxide, calcium oxide, zinc oxide, manganese oxide, tin oxide, aluminium hydroxide, boehmite, magnesium hydroxide, hydrotalcite, hydrocalumite, calcium hydroxide, zinc hydroxide, tin oxide hydrate, manganese hydroxide, zinc borate, zinc hydroxystannate and/or zinc stannate; as component D: 0 to 3 wt % of a mixture of a phosphonite or a phosphonite/phosphate mixture, and as component E: 0 to 3 wt % of an ester or salt of long-chain aliphatic carbonic acids having
Type:
Application
Filed:
February 14, 2012
Publication date:
May 8, 2014
Applicant:
CLARIANT FINANCE (BVI) LIMITED
Inventors:
Sebastian Hoerold, Harald Bauer