US2010319585A1PendingUtilityA1

Environmentally Compatible Defoamers and Cement Compositions Including Environmentally Compatible Defoamers

50
Individually held — no corporate assignee on recordPriority: Aug 24, 2004Filed: Aug 30, 2010Published: Dec 23, 2010
Est. expiryAug 24, 2024(expired)· nominal 20-yr term from priority
Inventors:Michael J. SzymanskiSamuel J. LewisJ. Michael WilsonArron L. Karcher
C04B 2103/50Y02W30/91C04B 28/02C09K 8/467Y10S507/906C04B 40/0039
50
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

Disclosed herein are defoamers comprising ethylene glycol, a defoaming hydrocarbon base fluid, and a non-ionic surfactant wherein the hydrocarbon base fluid comprises an internal olefin or a straight-chain n-alcohol, and wherein the non-ionic surfactant is present in the defoamer in an amount in the range of from about 1% to about 10% by weight of the defoamer. Also disclosed herein are cement compositions comprising water, hydraulic cement, and a defoamer, wherein the defoamer comprises ethylene glycol, a non-ionic surfactant, and a defoaming hydrocarbon base fluid wherein the hydrocarbon base fluid comprises an internal olefin or a straight-chain n-alcohol, and wherein the non-ionic surfactant is present in the defoamer in an amount in the range of from about 1% to about 10% by weight of the defoamer.

Claims

exact text as granted — not AI-modified
1 .- 20 . (canceled) 
     
     
         21 . A cement composition comprising: water, hydraulic cement, and a defoamer,
 wherein the defoamer comprises ethylene glycol, a non-ionic surfactant, and a defoaming hydrocarbon base fluid wherein the hydrocarbon base fluid comprises an internal olefin or a straight-chain n-alcohol, and   wherein the non-ionic surfactant is present in the defoamer in an amount in the range of from about 1% to about 10% by weight of the defoamer.   
     
     
         22 . The cement composition of  claim 21  wherein the defoaming hydrocarbon base fluid is 1-hexanol and wherein ethylene glycol makes up from about 10% to about 50% of the combined weight of the ethylene glycol and the 1-hexanol. 
     
     
         23 . The cement composition of  claim 21  wherein the defoamer further comprises at least one of the following group: graphite, aluminum stearate, hydrophobically modified clay, and mixtures thereof. 
     
     
         24 . The cement composition of  claim 21  wherein the defoamer is present in the cement composition in an amount in the range of from about 0.01% to about 5% by weight of the cement. 
     
     
         25 . The cement composition of  claim 21  wherein the ethylene glycol defoamer further comprises a co-solvent selected from the group consisting of ester based fluids, ethylene glycol, and propylene glycol. 
     
     
         26 . The cement composition of  claim 25  wherein the ester-based fluid comprises an ester of 2-ethylhexanol and a plurality of monocarboxylic acids each comprising from about 6 to about 11 carbon atoms. 
     
     
         27 . The cement composition of  claim 21  wherein the hydraulic cement comprises at least one of the following group: Portland cement, pozzolanic cement, gypsum cement, soil cement, calcium phosphate cement, high alumina content cement, silica cement, and high alkalinity cement. 
     
     
         28 . A defoamer for use in a cement composition, comprising ethylene glycol, a defoaming hydrocarbon base fluid, a non-ionic surfactant, and a hydrophobic particle.
 wherein the hydrocarbon base fluid comprises an internal olefin or a straight-chain n-alcohol, and   wherein the non-ionic surfactant is present in the defoamer in an amount in the range of from about 1% to about 10% by weight of the defoamer.   
     
     
         29 . The defoamer of  claim 28  wherein the defoaming hydrocarbon base fluid is 1-hexanol and wherein ethylene glycol makes up from about 10% to about 50% of the combined weight of the ethylene glycol and the 1-hexanol. 
     
     
         30 . The defoamer of  claim 28  further comprising a co-solvent. 
     
     
         31 . The defoamer of  claim 30  wherein the co-solvent comprises at least one of the following group: ethylene glycol, propylene glycol, and an ester-based fluid. 
     
     
         32 . The defoamer of  claim 31  wherein the ester-based fluid comprises 2-ethylhexanol. 
     
     
         33 . The defoamer of  claim 28  wherein the hydrophobic particle comprises at least one of the following: graphite, aluminum stearate, hydrophobically-modified silica, hydrophobically-modified clay, and mixtures thereof.

Join the waitlist — get patent alerts

Track US2010319585A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.