High polymer content hybrid drag reducers

Details High polymer content hybrid drag reducers High polymer content hybrid drag reducers

2007-10-26

2010-11-30

Cain, Edward J (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S220000, C523S221000

Reexamination Certificate

active

07842738

ABSTRACT:
A drag reducing composition comprising particles of at least two different drag reducing polymers. The different drag reducing polymers can be formed by different processes, such as bulk polymerization or emulsion polymerization, and the particles of the different drag reducing polymers can have different mean particle sizes. The drag reducing compositions can be added to a hydrocarbon-containing fluid to decrease the pressure drop associated with the turbulent flow of the hydrocarbon-containing fluid through a conduit.

REFERENCES:
patent: 3493000 (1970-02-01), Canevari et al.
patent: 3654994 (1972-04-01), Slagel et al.
patent: 3661541 (1972-05-01), Hollyday, Jr.
patent: 3679582 (1972-07-01), Wagenaar et al.
patent: 3726653 (1973-04-01), van der Meij et al.
patent: 3748266 (1973-07-01), Malone et al.
patent: 3758406 (1973-09-01), Malone et al.
patent: 3857402 (1974-12-01), Schuh
patent: 3985703 (1976-10-01), Ferry et al.
patent: 4190069 (1980-02-01), Krantz
patent: 4212312 (1980-07-01), Titus
patent: 4340076 (1982-07-01), Weitzen
patent: 4358572 (1982-11-01), Mack et al.
patent: 4546784 (1985-10-01), Schulz et al.
patent: 4573488 (1986-03-01), Carville et al.
patent: 4656204 (1987-04-01), Duvdevani et al.
patent: 4693321 (1987-09-01), Royer
patent: 4881566 (1989-11-01), Ubels et al.
patent: 4983186 (1991-01-01), Naiman et al.
patent: 5080121 (1992-01-01), Malik et al.
patent: 5244937 (1993-09-01), Lee et al.
patent: 5504131 (1996-04-01), Smith et al.
patent: 5504132 (1996-04-01), Smith et al.
patent: 5536786 (1996-07-01), Callahan, Jr. et al.
patent: 5928830 (1999-07-01), Cheng et al.
patent: 6015779 (2000-01-01), Eaton et al.
patent: 6126872 (2000-10-01), Kommareddi et al.
patent: 6160036 (2000-12-01), Kommareddi et al.
patent: 6172151 (2001-01-01), Johnston et al.
patent: 6178980 (2001-01-01), Storm
patent: 6218490 (2001-04-01), Brunelli et al.
patent: 6399676 (2002-06-01), Labude et al.
patent: 6576732 (2003-06-01), Smith et al.
patent: 6720384 (2004-04-01), Mayer et al.
patent: 6723683 (2004-04-01), Crossman et al.
patent: 6723779 (2004-04-01), Drujon et al.
patent: 6765053 (2004-07-01), Labude et al.
patent: 6838418 (2005-01-01), Allan et al.
patent: 6841593 (2005-01-01), Kommareddi et al.
patent: 6841608 (2005-01-01), Dreher et al.
patent: 6851444 (2005-02-01), Kohl et al.
patent: 6894088 (2005-05-01), Motier et al.
patent: 6946500 (2005-09-01), Harris et al.
patent: 7119132 (2006-10-01), Harris et al.
patent: 2002/0065352 (2002-05-01), Johnston et al.
patent: 2004/0060703 (2004-04-01), Stegemeier et al.
patent: 2004/0112995 (2004-06-01), Harris
patent: 2005/0049327 (2005-03-01), Jovancicevic et al.
patent: 2005/0209368 (2005-09-01), Yang et al.
patent: 2006/0144595 (2006-07-01), Milligan et al.
patent: 2006/0148928 (2006-07-01), Harris et al.
patent: 2006/0293196 (2006-12-01), Harris et al.
patent: 2008/0064785 (2008-03-01), Martin et al.
patent: 0882739 (1998-12-01), None
patent: 1437132 (1973-05-01), None
patent: WO 9957162 (1999-11-01), None
patent: WO 2006/138085 (2006-12-01), None
U.S. Patent Application entitled Low-Viscosity Drag Reducer; U.S. Appl. No. 10/411,045, filed Apr. 9, 2003.
Ralph Little, Suzanne Smidt, Paul Huang, James Romans, Joseph Dedrick, and Jan S. Matuszko; Improved Drag Reduction by Control of Polymer Particle Size; American Chemical Society; Ind. Eng. Chem. Res. 1991, 30, 403-407; Washington, D.C.

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