Additives for inhibiting the formation of gas hydrates

Details Additives for inhibiting the formation of gas hydrates Additives for inhibiting the formation of gas hydrates

2007-11-20

2007-11-20

McAvoy, Ellen M. (Department: 1764)

Chemistry of hydrocarbon compounds

Hydrate or production thereof

C585S950000, C095S153000, C137S013000

Reexamination Certificate

active

10432648

ABSTRACT:
The invention relates to the use of polymers which contain between 1 and 99 mol-% structural units of formula 1,wherein R1represents hydrogen or C1-C6alkyl, R2represents C1-C24-alkyl, C2-C24-alkylene or a C6-C18-aryl radical, which can be substituted with a C1-C12-alkyl group, A represents identical or different C2-C4alkylene radicals and, x, represents whole number from 2-40 in quantities from 0.01-2 wt-%, in quantities from 0.01 to 2 wt-%, in relation to the aqueous phase. The polymers can be used as gas hydrate inhibitors.

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PCT Search Report for application No. PCT/EP 01/12811 filed on Nov. 6, 2001.

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