Drag-reducing polymer suspensions

Details Drag-reducing polymer suspensions Drag-reducing polymer suspensions

2005-09-06

2005-09-06

Yoon, Tae H. (Department: 1714)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S309000, C523S351000, C528S499000, C528S50200C, C528S503000

Reexamination Certificate

active

06939902

ABSTRACT:
A hydrocarbon-soluble drag-reducing suspension is described, along with a process for manufacturing the drag-reducing suspension. The drag-reducing suspension is easily transportable, non-hazardous, easily handled, and provides a significant increase in drag-reducing capability over existing products. The drag-reducing suspension is manufactured by grinding an ultra-high molecular weight polymer in the presence of a grinding aid and mixing it with a suspending fluid.

REFERENCES:
patent: 3636136 (1972-01-01), Konopik
patent: 3771729 (1973-11-01), Frable
patent: 4273294 (1981-06-01), Hollely et al.
patent: 4826728 (1989-05-01), O'Mara et al.
patent: 5244937 (1993-09-01), Lee et al.
patent: 5539044 (1996-07-01), Dindi et al.
patent: WO 97/32926 (1997-09-01), None

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