Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1983-12-12
1984-12-18
Griffin, Ronald W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
260DIG31, 252 85C, 524501, 524504, 524516, 524521, 524800, 524803, 524804, 524832, 525203, 525919, B63B 134, C09K 300, C09K 702
Patent
active
044891806
ABSTRACT:
The present invention discloses a class of water soluble complex polymers of relatively low molecular weight, which have been found to be improved drag reducing agents. These complex polymers are a mixture of a cationic copolymer having a water soluble polymer backbone and an anionic copolymer having a water soluble polymer backbone. The solutions of these complex polymers are improved drag reducing agents for aqueous systems at low concentrations (i.e., 10 to 500 ppm) relative to individual solutions of the copolymers which make upon the polymer complex.
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Duvdevani Ilan
Kowalik Ralph M.
Lundberg Robert D.
Peiffer Dennis G.
Exxon Research and Engineering Co.
Griffin Ronald W.
Nanfeldt Richard E.
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