Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1985-01-02
1985-12-24
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
526287, 526288, 5263073, B05D 508
Patent
active
045607109
ABSTRACT:
A method for reducing the frictional drag of an aqueous solution flowing through a pipe, tube or conduit having a continuous flow therethrough, which comprises the step of adding about 0.001 to about 0.1 wt. % of a copolymer to said aqueous solution, wherein said copolymer has the structure: ##STR1## wherein x is about 40 to about 99 mole % and y is about 1 to about 60 mole %.
REFERENCES:
patent: 4075183 (1978-02-01), Kawakami et al.
patent: 4460758 (1984-07-01), Peiffer et al.
patent: 4489180 (1984-12-01), Lundberg et al.
Poly(sulphopropylbetaines): Synthesis and Characterization, V. M. Monroy Soto and J. C. Galin, Polymer, 1984, vol. 25, Jan.
Kaladas Jeffrey J.
Kowalik Ralph M.
Peiffer Dennis G.
Schulz Donald N.
Exxon Research and Engineering Co.
Nanfeldt Richard E.
Reddick J. M.
Schofer Joseph L.
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