Cementing compositions

Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing

Reexamination Certificate

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Details

C106S724000, C106S725000, C106S727000, C106S728000, C106S802000, C106S809000, C106S810000, C106S819000, C106S820000, C106S823000, C523S130000, C523S411000

Reexamination Certificate

active

06855201

ABSTRACT:
A cement composition is basically comprised of a hydraulic cement, water in an amount sufficient to form a pumpable slurry and a fluid loss control polymer additive comprised of 69 weight % of the calcium salt of 2-acrylamido-2-methyl propane sulfonic acid, 14 weight % of the calcium salt of maleic acid, 14 weight % of N-vinyl caprolactam and 3 weight % of 4-hydroxybutyl vinyl ether.

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English language translation of WO 03/085013, Spindler, 10-2003.

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