Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Aqueous continuous liquid phase and discontinuous phase...
Reexamination Certificate
2009-04-08
2011-12-20
Choi, Ling (Department: 1763)
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Aqueous continuous liquid phase and discontinuous phase...
C525S231000, C525S418000, C536S004100, C568S672000
Reexamination Certificate
active
08080588
ABSTRACT:
Surfactants of the general formula R1—X where R1is an aliphatic C17H35-alkyl radical and X is a hydrophilic group, and the mean degree of branching of the R1radical is from 2.8 to 3.7. Mixtures which comprise such surfactants and the use of such surfactants and of mixtures thereof for tertiary mineral oil extraction.
REFERENCES:
patent: 3508621 (1970-04-01), Gaylord et al.
patent: 3675716 (1972-07-01), Farmer et al.
patent: 3811504 (1974-05-01), Flournoy et al.
patent: 3811505 (1974-05-01), Flournoy et al.
patent: 3811507 (1974-05-01), Flournoy et al.
patent: 3890239 (1975-06-01), Dycus et al.
patent: 4077471 (1978-03-01), Shupe et al.
patent: 5849960 (1998-12-01), Singleton et al.
patent: 6015781 (2000-01-01), Vinson et al.
patent: 6222077 (2001-04-01), Singleton
patent: 2006/0184986 (2006-08-01), Urban
patent: 2006/0185845 (2006-08-01), Shpakoff et al.
patent: 15 68 542 (1970-05-01), None
patent: 4325237 (1995-02-01), None
patent: 43 39 713 (1995-05-01), None
patent: 10036172 (2001-03-01), None
patent: 199 57 173 (2001-05-01), None
patent: 10243361 (2004-04-01), None
patent: 003183 (1979-07-01), None
patent: 81 041 (1983-06-01), None
patent: 311 961 (1989-04-01), None
patent: 958267 (1999-11-01), None
patent: 1204624 (2002-05-01), None
patent: 1457475 (2004-09-01), None
patent: WO-95/14647 (1995-06-01), None
patent: WO-2006/131541 (2006-12-01), None
Bittner Christian
Guzmann Marcus
Haunert Andrea
Oetter Günter
Papp Rainer
BASF SE
Choi Ling
Connolly Bove & Lodge & Hutz LLP
Wang Chun-Cheng
LandOfFree
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