Polymeric phosphinic acids and salts thereof
AssigneeClariant GmbH
InventorsMartin Sicken, Norbert Weferling, Hans-Peter Schmitz
Life of this patent
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Abstract
The invention relates to polymeric phosphinic acids and their salts of the formula (I) in which X is hydrogen or a 1/m metal of valency m, R1 and R2 are identical or different and are hydrogen, a carboxyl group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having 1 to 10 carbon atoms, phenyl, benzyl or alkyl-substituted aromatics, R3 and R4 are identical or different and are hydrogen or a vinyl group of the formula (VI) in which R1 and R2 have the abovementioned meaning, and {overscore (u)} is the average number of monomer units. The invention also relates to a process for the preparation of the abovementioned compounds and their use.
Claims21
A polymeric phosphinic acid or a salt thereof of the formula (I)
- in which
- X is hydrogen cerium or a metal selected from the group consisting of a metal of group IA, IIA, IIIA, IVA, VA, IIB, IVB, VIIB, and VIIIB of the Periodic Table,
- R1 and R2 are identical or different and are hydrogen, a carboxyl group, a carboxylic acid ester or nitrile group, an unsubstituted or substituted alkyl group having 1 to 10 carbon atoms, phenyl, benzyl or alkyl-substituted aromatics,
- R3 and R4 are identical or different and are hydrogen or a vinyl group of the formula (VI)
- in which R1 and R2 have the abovementioned meaning, and {overscore (u)} is the average number of monomer units, and is at least 1.
A polymeric phosphinic acid or a salt thereof of the formula
- where X=H, cerium or a metal selected from the group consisting of a metal of group IA, IIA, IIIA, IVA, VA, IIB, IVB, VIIB, and VIIIB of the Periodic Table, and where {overscore (u)} is at least 1.
A polymeric phosphinic acid or a salt thereof of the formula
- where X=H, cerium or a metal selected from the group consisting of a metal of group IA, IIA, IIIA, IVA, VA, IIB, IVB, VIIB, and VIIIB of the Periodic Table, and where {overscore (u)} is at least 1.
A polymeric phosphinic acid or a salt thereof of the formula
- where X=H, cerium or a metal selected from the group consisting of a metal of group IA, IIA, IIIA, IVA, VA, IIB, IVB, VIIB, and VIIIB of the Periodic Table, and where {overscore (u)} is at least 1.
A polymeric phosphinic acid or a salt thereof of the formula
- where X=H, cerium or a metal selected from the group consisting of a metal of group IA, IIA, IIIA, IVA, VA, IIB, IVB, VIIB, and VIIIB of the Periodic Table, and {overscore (u)} is at least 1, and where R is an alkyl group having from 1 to 4 carbon atoms.
Dependencies are inferred from the claim text.