Fluid loss control additive and cement compositions...

Details Fluid loss control additive and cement compositions... Fluid loss control additive and cement compositions...

2008-07-15

2008-07-15

Marcantoni, Paul (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S724000, C106S729000, C106S730000, C106S823000, C405S267000, C524S002000, C524S004000

Reexamination Certificate

active

07399355

ABSTRACT:
A fluid loss control additive comprising a crosslinked polymer and sugar and cement compositions comprising the same. In one embodiment, the fluid loss control additive comprises a polymer and a sugar connected by a pH-sensitive crosslink. In some embodiments, the polymer is a polyvinyl alcohol, and the sugar is a sugar alcohol such as sorbitol.

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