Compositions – Leather or fur treating
Patent
1978-02-09
1979-05-01
Guynn, Herbert B.
Compositions
Leather or fur treating
137 13, 166308, F17D 116, E21B 4326
Patent
active
041522745
ABSTRACT:
A method of reducing friction loss in oil well fracturing through the addition of small amounts of copolymers of acrylamide and quaternary salts of dimethylaminoethyl methacrylate and dimethylaminopropyl methacrylamide.
REFERENCES:
patent: 2980657 (1961-04-01), Melamed
patent: 3014896 (1961-12-01), Colwell et al.
patent: 3254719 (1966-06-01), Root
patent: 3868328 (1975-02-01), Boothe et al.
patent: 3943060 (1976-03-01), Martin et al.
patent: 4075183 (1978-02-01), Kawakami et al.
Hunter Wood E.
Phillips Kenneth G.
Guynn Herbert B.
Miller Robert A.
Nalco Chemical Company
Premo John G.
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