Polymers for use as filtration control aids in drilling muds

Details Polymers for use as filtration control aids in drilling muds Polymers for use as filtration control aids in drilling muds

1986-12-04

1988-02-23

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, C09K 702, C08F22802

Patent

active

047269065

ABSTRACT:
The instant invention is directed to a polymer, having an intrinsic viscosity of 1.0 to 7.0, preferably 1.5 to 5.0, dl/g in 1.0 M NaCl, prepared from:

REFERENCES:
patent: 4147681 (1979-04-01), Lim et al.
patent: 4293427 (1981-10-01), Lucas et al.
patent: 4305860 (1981-12-01), Iovine et al.
patent: 4455240 (1984-06-01), Costello
patent: 4471097 (1984-09-01), Uhl et al.
patent: 4505828 (1985-03-01), Lipowski et al.
patent: 4536292 (1985-08-01), Matz
patent: 4626362 (1986-12-01), Dickert et al.

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