The invention provides compounds of the formula 1 in which
A is a C
2
- to C
4
-alkylene group
x is from 1 to 100
R1 is C
1
-C
30
-alkyl, C
2
-C
30
-alkenyl, C
7
-C
30
-alkylaryl
R2 is an aliphatic, cycloaliphatic or aromatic radical which contains at least one structural unit of the formula 2
and
y is from 0 to 100,
with the proviso that y is from 1 to 100 when R2 is of the formula 2, and their use in amounts of from 0.01 to 2% by weight for preventing the formation of gas hydrates in aqueous phases which are in contact with a gaseous, liquid or solid organic phase.
本发明提供了式子1中的化合物,其中A是C2到C4的烷基链,x为1到100,R1是C1-C30烷基、C2-C30烯基或C7-C30烷基芳基,R2是脂肪族、环状或芳香基团,其中至少含有一个式子2的结构单元,y为0到100,但当R2为式子2时,y为1到100。这些化合物在重量为0.01到2%的量下用于防止与气态、液态或固态有机相接触的
水相中天然气
水合物的形成。