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Improved Drag Reduction Agent Patent by Michael Medina is a document available to read on EtoBox.

preferably about 10 to about 50, and most preferably about 20 to about 40. The copolymer has a molecular weight of about 1 million to about 20 million, more preferably about 2 million to about 10 million, and most preferably about 3 million to about 7 million. The method reduces drag of an aqueous solution flowing through a pipe by adding 0.001-0.1 wt% of a betaine copolymer of acrylamide and N-(3-sulfopropyl)-N-methacryloxyethyl-N,N-dimethyl-ammonium betaine. The copolymer has 40-99 mole% acrylamide and

Author

Michael Medina

Language

EN