Patent · US Active

Flame retardant-stabilizer combination for thermoplastic polymers

US12209175B2 · kind B2 · utility

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2References

19Claims

0Family size

Assignee

CLARIANT INTERNATIONAL LTD · CH

Inventors

Sebastian Hörold · Lechenich, DE
Harald Bauer · Ehningen, DE
Eva-Maria Leuschner · Augsburg, DE

Key dates

Filing date	Apr 25, 2022
Grant date	Jan 28, 2025
Priority date	—
Expiry date	Apr 25, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2203/30
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Described herein is a flame retardant-stabilizer mixture including as a component A, 5% to 95% by weight of aluminium diethylphosphinate (DEPAL) and/or zinc diethylphosphinate (DEPZN); as a component B, 5% to 95% by weight of titanium phosphinates and/or titanyl phosphinates of the formula (I) (DEPTI) in which x is a number from 0 to 1.9; as a component C, 0% to 10% by weight of aluminium phosphite or zinc phosphite of the formula (II), [HP(═O)O2]2−Zn2+, and formula (III), [HP(═O)O2]2−3Al3+2; as a component D, 0% to 30% by weight of a nitrogen-containing synergist and/or of a phosphorus-containing and/or nitrogen-containing flame retardant; as a component E, 0% to 70% by weight of a filler and reinforcer; as a component F, 0% to 3% by weight of an organic phosphonite and/or an organic phosphite and/or mixtures with phenolic antioxidants; and as a component G, 0% to 3% by weight of an ester and/or salt of long-chain aliphatic carboxylic acids (fatty acids) typically having chain lengths of C14 to C40. The sum total of components A-G is 100% by weight.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.