| http://www.w3.org/ns/prov#value | - Patent US6806234 - Topical defoamer and demulsifier - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsCompounds of the formula H(CH2)zCOO???[C2H4O]xCyH2y+1 where z is 0-2, x is an integer from 1 to 5 and y is an integer from 4-9 are used as emulsion breakers and defoamers in formation treatment fluids in the recovery of hydrocarbons from su
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