C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/34 (2006.01) C09K 8/26 (2006.01) C09K 7/06 (1990.01) C09K 7/02 (1990.01)
Patent
CA 2085610
Described is the use of oleophilic esters of ecologically compatible polycarboxylic acids with oil- soluble and ecologically compatible monofunctional alcohols and/or polyfunctional alcohols which may also be watersoluble as the oil phase or as a component of the oil phase of oil-based or water-based drilling fluids and other fluid drill-hole treatment agents. The oleophilic polycarboxylic acid esters are especially suitable as component of the continuous oil phase of inverted fluids of the W/O type. Here - if rheologic- ally suitable compounds will be employed - they may comprise the at least predominant portion of the con- tinuous oil phase; but also possible is the concomitant use of complex oleophilic polycarboxylic acid esters, which are not or just to a restricted degree fluid in a temperature range of from 0 °C to 20 °C, as an additive in fluid oils of the class of the non-polluting oils. Here, suitable oil mixing phases especially are oleo- philic alcohols, ethers, respective esters of mono- carboxylic acids and fluid oils based an oleophilic carbonic acid diesters.
Fues Johann F.
Herold Claus-Peter
Mueller Heinz
von Tapavicza Stephan
Borden Ladner Gervais Llp
Cognis Deutschland Gmbh & Co. Kg
Henkel Kommanditgesellschaft Auf Aktien
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