1-alkyl-5-oxopyrrolidine-3-carboxylic esters with improved...

Details 1-alkyl-5-oxopyrrolidine-3-carboxylic esters with improved... 1-alkyl-5-oxopyrrolidine-3-carboxylic esters with improved...

2008-08-01

2011-11-29

McAvoy, Ellen (Department: 1771)

Chemistry of hydrocarbon compounds

Hydrate or production thereof

C585S950000, C548S519000

Reexamination Certificate

active

08067651

ABSTRACT:
The invention provides compounds of the formula 1in whichA is a C2- to C4-alkylene groupx is from 1 to 100R1 is C1-C30-alkyl, C2-C30-alkenyl, C7-C30-alkylarylR2 is an aliphatic, cycloaliphatic or aromatic radical which contains at least one structural unit of the formula 2 andy 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.

REFERENCES:
patent: 3224975 (1965-12-01), Hinkamp
patent: 4127493 (1978-11-01), Elliott et al.
patent: 4196091 (1980-04-01), Schlicht
patent: 4774255 (1988-09-01), Black et al.
patent: 5244878 (1993-09-01), Sugier et al.
patent: 5880252 (1999-03-01), Kim et al.
patent: 6093862 (2000-07-01), Sinquin et al.
patent: 6566309 (2003-05-01), Klug et al.
patent: 6894007 (2005-05-01), Klug et al.
patent: 7615102 (2009-11-01), Leinweber et al.
patent: 7893009 (2011-02-01), Leinweber et al.
patent: 2008/0177103 (2008-07-01), Leinweber et al.
patent: 2008/0214865 (2008-09-01), Leinweber et al.
patent: 2009/0042747 (2009-02-01), Leinweber et al.
patent: 2009/0054268 (2009-02-01), Leinweber et al.
patent: 2009/0124786 (2009-05-01), Feustal et al.
patent: 2010/0213408 (2010-08-01), Feustal et al.
patent: 4333238 (1995-04-01), None
patent: 10259815 (2004-07-01), None
patent: 102005054037 (2007-05-01), None
patent: 102007037015 (2008-10-01), None
patent: 0069512 (1983-01-01), None
patent: 0896123 (1999-02-01), None
patent: 1323061 (1973-07-01), None
patent: WO93/25798 (1993-12-01), None
patent: WO2004/056885 (2004-07-01), None
patent: WO2006/084613 (2006-08-01), None
patent: WO2007/054225 (2007-05-01), None
patent: WO2007/054226 (2007-05-01), None
English Lang. Abstract and Machine Trans. of DE10259815.
International Search Report for EP 08 01 3825, (Nov. 2008).
International Search Report for EP 08 01 3824, (Jan. 2009).

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