The invention relates to the use of compounds of the formula (1)
##STR1##
in which
R1 is C1- to C24-alkyl, C2-
to C24-alkenyl or a C6- to C18-aryl radical which
may be substituted by a C1- to C24-alkyl group,
R2, R3 independently of one another, are hydrogen,
C1- to C18-alkyl, or C8- to C7-cycloalkyl,
or R2 and R3, including the nitrogen atom to which they are
bonded, form a ring of 4 to 8 ring atoms, in which oxygen or nitrogen atoms may
also be present in addition to carbon.
A are identical or different C2- to C4-alkylene radicals,
B is C1- to C7-alkylene, and
n is an integer from 1-40,
as gas hydrate inhibitors.
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