Flameproof agent stabiliser combination for thermoplastic and duroplastic polymers

US9068061B2 · kind B2 · utility

Assignee

• Clariant Finance (BVI) Limited · VG

Inventors

• Sebastian Hoerold · Diedorf, DE
• Harald Bauer · Ehningen, DE
• Michael Hill · Barry, GB

Key dates

• Filing date: Apr 20, 2011
• Grant date: Jun 30, 2015
• Expiry date: Apr 20, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2201/014
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a novel flameproof agent stabiliser combination for thermoplastic and duroplastic polymers, containing, as component A 25-97.7 wt % of a dialkylphosphinic acid salt of formula (I) and/or a diphosphinic acid salt of formula (II) and/or polymers thereof, wherein R1, R2 are the same or different and represent C1-C6-alkyl, linear or branched and/or aryl; R3 represents C1-C10-alkylene, linear or branched, C6-C10-arylene, C7-C20-alkylarylene or C7-C20-arylalkylene; M represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m represents 1-4; n represents 1-4; x represents 1-4, as component B 2-45 wt. % of a monoalkylphosphinic acid salt of general formula (Ill), wherein R4 represents C1-C6-alkyl, linear or branched; M represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; representing, as component C 0.3-30 wt. % of a synergist containing nitrogen or a phosphorous/nitrogen flameproof agent and as component D 0-10 wt. % of a zinc salt or a basic or amphoteric oxide, hydroxide, carbonate, silicate, borate, stannate, mixed oxide-hydroxides, oxide-hydroxide-…