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US 8,771,561 B2Granted
Aminoguanidinephenylphosphinate flame retardant compositions
AssigneeBASF SE
InventorsRainer Xalter, Thomas Weiss
Life of this patent
Estimating the term…
Abstract
The present invention relates to flame retardant polymer compositions which comprise aminoguanidine phenylphosphinates and mixtures with additional flame retardants. The compositions are especially useful for the manufacture of flame retardant compounds based on polyfunctional epoxides or polycondensates like polyesters, polyamides and polycarbonates.
Claims16
A composition which comprises
- a) an aminoguanidine phenylphosphinate salt of formula (I)
- wherein
- R1-R5 independently of one another represent hydrogen or a substituent selected from the group consisting of C1-C4alkyl, hydroxy, hydroxy-C1-C4alkyl and C1-C4alkoxy;
- R6-R10 independently of one another represent hydrogen or a substituent selected from the group consisting of C1-C4alkyl, phenyl, phenyl-C1-C4alkyl, (C1-C4alkyl)1-3phenyl and (C1-C4alkyl)1-2hydroxyphenyl;
- and
- x represents a number between 1.0 and 2.0;
- and
- b) a polymer substrate.
5 more elements
A process for imparting flame retardancy to a hardened polyfunctional epoxide composition, which process comprises adding to the composition an aminoguanidine phenylphosphinate salt (I)
- wherein
- R1-R5 Independently of one another represent hydrogen or a substituent selected from the group consisting of C1-C4alkyl, hydroxy, hydroxy-C1-C4alkyl and C1-C4alkoxy;
- R6-R10 independently of one another represent hydrogen or a substituent selected from the group consisting of C1-C4alkyl, phenyl,phenyl-C1-C4alkyl,(C1-C4alkyl)1-3phenyl and (C1-C4alkyl) 1-2 hydroxyphenyl;
- and
- x represents a number between 1.0 and 2.0.
2 more elements
An aminoauanidine ohenvlohosohinate salt of formula (I)
- wherein
- R1-R5 independently of one another represent hydrogen or a substituent selected from the group consisting of C1-C4alkyl, hydroxy, hydroxy-C1-C4alkyl and C1-C4alkoxy;
- R6-R10 independently of one another represent hydrogen or a substituent selected from the group consisting of C1-C4alkyl, phenyl, phenyl-C1-C4alkyl, (C1-C4alkyl)1-3phenyl and (C1-C4alkyl)1-2hydroxyphenyl;
- and
- x represents a number between 1.0 and 2.0.
2 more elements
Dependencies are inferred from the claim text.