Functionalized polymers containing amine groupings and their use

Details Functionalized polymers containing amine groupings and their use Functionalized polymers containing amine groupings and their use

1993-08-20

1994-11-29

Group, Karl

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106724, 106728, 106808, 106810, 106823, 166293, 523130, C04B 2412

Patent

active

053686420

ABSTRACT:
A functionalized polyamine effective to retard the setting rate of a slurry of hydraulic cement is disclosed. A slurry of hydraulic cement in water which includes the functionalized polyamine, which is a polyethylene amine having attached thereto moieties selected from the group consisting of carboxylic acid groups and phosphonic acid groups, is useful to cement a conduit in a subterranean formation penetrated by a wellbore wherein it is desirable to retard the setting rate of the cement to enable placement of the slurry.

REFERENCES:
patent: 2427683 (1947-09-01), Ludwig
patent: 2470505 (1949-05-01), Ludwig
patent: 2848304 (1958-08-01), Haldas
patent: 4210455 (1980-07-01), Metcalf et al.
patent: 4657948 (1987-04-01), Roark et al.
patent: 4676832 (1987-06-01), Childs et al.
patent: 4706755 (1987-11-01), Roark et al.
"Functionalization and Chelating Properties of a Porous Polymer Derived From Vinylamine", Eur. Polym. J. vol. 28, No. 6, pp. 671-679, 1992, no month.

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