METAL SALTS AS MARKING AGENTS FOR COMBUSTIBLE BITUMEN

The present invention relates to the use of metal salts of formula (I) in which M is the equivalent of a cobalt or iron ion, Q is C4-C22-alkyl, C4-C22-alkenyl, aryl or hetaryl, L is carbonyl or sulphonyl, X is a monovalent inorganic anion, m is 1, 2 or 3, y is 0, 1 or 2, and n is the sum of m and y...

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Hauptverfasser: RABACCHI, SILVANA, PISCITELLI, FRANCO, OSTI, ALBERTO, SARTO, VIRGINIO
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention relates to the use of metal salts of formula (I) in which M is the equivalent of a cobalt or iron ion, Q is C4-C22-alkyl, C4-C22-alkenyl, aryl or hetaryl, L is carbonyl or sulphonyl, X is a monovalent inorganic anion, m is 1, 2 or 3, y is 0, 1 or 2, and n is the sum of m and y and may be 2 or 3, for marking combustible bitumen, and relates also to such substances containing one or more of the aforementioned metal salts.