COMPOUNDS WITH AT LEAST ONE CYCLIC UREA MOIETY AND THEIR USE IN CORROSION PREVENTION
A compound comprises at least one cyclic urea moiety including a head portion and a tail portion connected through an amide moiety or a cyclic amidine moiety, wherein the head portion comprises a polyalkylenepolyamine structure comprising 3 to 10 C2-C4 alkylene moieties present between nitrogen atom...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A compound comprises at least one cyclic urea moiety including a head portion and a tail portion connected through an amide moiety or a cyclic amidine moiety, wherein the head portion comprises a polyalkylenepolyamine structure comprising 3 to 10 C2-C4 alkylene moieties present between nitrogen atoms, wherein the alkylene moieties may be the same or different and may be substituted with one or more C1 to C3 alkyl groups, wherein at least one of the alkylene moieties together with its adjoining nitrogen atoms is in the form of a cyclic alkylene urea moiety of the formulawherein A is a C2 to C4 alkylene moiety which may be substituted with one or more C1 to C3 alkyl groups and wherein the tail portion includes an alkyl or alkenyl group with 6 to 24 carbon atoms which may be substituted. |
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