Patent ID: 7008935

Claim:
An amine, amide, sulphonamide or carbamate substituted benzalmalonic salt compound having the following general formula (1) or (2): in which X 1 is hydrogen or a radical R 3 —(C═O)—, R 3 —SO 2 — or R 3 —O—(C═O)—; X 2 is a divalent radical of formula —(C═O)—R′ 3 —(C═O)—, —SO 2 —R′ 3 —SO 2 — or —(C═O)—O—R′ 3 —O—(C═O)—; R 2 is a linear or branched C 1-8 alkyl radical n is 0, 1 or 2; R 3 is a linear or branched C 1 –C 30 alkyl radical or C 3 –C 30 alkenyl radical, optionally bearing one or more hydroxyl substituents and optionally containing in the hydrocarbon chain one or more heteroatoms selected from among oxygen, nitrogen and silicon atoms, or an optionally substituted C 6 –C 20 aryl radical; R′ 3 is a single valence bond or a linear or branched divalent C 1 –C 30 alkylene or C 3 –C 30 alkenylene radical, optionally bearing one or more hydroxyl substituents and optionally containing in the hydrocarbon chain one or more heteroatoms selected from among oxygen, nitrogen and silicon atoms; and the radicals A, which may be identical or different, are each an alkali metal cation, an ammonium group, a C 1 –C 20 mono-, di- or trialkylammonium radical, a C 2 –C 20 mono-, di- or trialkanolammonium radical, or a C 5 –C 8 quaternary nitrogen-containing heterocyclic ring member.