Corrosion and gas hydrate inhibitors having improved water...

Details Corrosion and gas hydrate inhibitors having improved water... Corrosion and gas hydrate inhibitors having improved water...

2008-01-29

2008-01-29

McAvoy, Ellen M. (Department: 1764)

Chemistry of hydrocarbon compounds

Hydrate or production thereof

C507S240000, C422S007000, C095S153000, C560S170000, C564S201000

Reexamination Certificate

active

07323609

ABSTRACT:
The invention provides the use of compounds of the formula (1)whereR1, R2are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl,R3is C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, —CHR6COO−or —O−,A is a C2- to C4-alkylene group,B is a C1- to C10-alkylene group,X is O or NR7R6, R7are each independently hydrogen, C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl,R4is a C1- to C50-alkyl, C2- to C50-alkenyl radical, C6- to C50-aryl or C7- to C50-alkylaryl,R5is hydrogen, —OH or a C1- to C4-alkyl radical,n, m are each independently a number from 0 to 30,x is a number from 1 to 6,as corrosion and gas hydrate inhibitors, and also the compounds of formula 1.

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