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...

2008-03-11

2008-03-11

Zimmer, Marc S. (Department: 1712)

Gas separation: processes

Liquid contacting

Hydrate inhibitor

C252S387000, C252S390000, C252S396000, C507S939000, C585S015000

Reexamination Certificate

active

10783407

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, —CHR5—COO−or —O−,R4is M, hydrogen or an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms,A is a C2- to C4-alkylene group,B is a C1- to C10-alkylene group,D is an organic radical which optionally contains heteroatoms and has from 1 to 600 carbon atoms,X, Y are each independently O or NR6,R5, R6are each independently hydrogen, C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, andM is a cationn is a number from 1 to 30as corrosion inhibitors and gas hydrate inhibitors, and also the compounds of formula 1.

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