Title: Well cementing composition containing polymaleic anhydride and having improved flow properties

Abstract: Aqueous hydraulic cement compositions containing polymaleic anhydride as a flow-property-improving and turbulence-inducing additive and their use in cementing wells is disclosed.

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Inventors: Adams, Sally L. (Pittsburgh, PA, US)
Cook, Michael M. (McKees Rocks, PA, US)
Martin, Fred David (Boxford, MA, US)

Application Number: 465938
Filing Date: 1974-05-01
Publication_date: 1976-03-09
Assignee: Calgon Corporation (Pittsburgh, PA)
Primary Class(es): 523/130 166/293, 524/5, 524/599
Other Classes:
US Patent Ref:

2779417	Jan, 1957	Clar, Jr. et al.	166/293.
2790724	Apr, 1957	Bergman	166/293.
3037957	Jun, 1962	Bruere	260/42.
3116264	Dec, 1963	Wahl	166/293.
3140269	Jul, 1964	Wahl et al.	166/293.
3272771	Sep, 1966	Busche et al.	260/42.
3409080	Nov, 1968	Harrison	166/293.

Other Refs:
Primary Examiner: Rzucidlo, Eugene C.
Assistant Examiner:
Attorney: Westlake, Jr.; Harry E., Speer; Raymond M.