Additives for inhibiting gas hydrate formation

Details Additives for inhibiting gas hydrate formation Additives for inhibiting gas hydrate formation

2005-05-17

2005-05-17

Tucker, Philip C. (Department: 1712)

Earth boring, well treating, and oil field chemistry

Preventing contaminant deposits in petroleum oil conduits

C507S246000, C507S221000, C507S224000, C507S225000, C507S229000, C585S015000, C585S950000

Reexamination Certificate

active

06894007

ABSTRACT:
The invention relates to the use of compounds of the formula (1)in whichR1is 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, R3independently of one another, are hydrogen, C1- to C18-alkyl, or C8- to C7-cycloalkyl, or R2and 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, andn is an integer from 1-40,as gas hydrate inhibitors.

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