Title:
HYDROPHOBICALLY COLLOIDAL COMPOSITION CONTAINING POLYMER OF WATER-SOLUBLE MONOMER AND MONOMER SHOWING BOTH HYDROPHOBIC AND HYDROPHILIC PROPERTIES
Document Type and Number:
Japanese Patent JPS62156184
Kind Code:
A
Abstract:
The invention comprises a thickening agent comprising an aqueous-soluble polymerization product of one or more water-soluble monomers which are sufficiently water-soluble to form at least a 10 weight percent solution when dissolved in water and which undergo addition polymerization to form polymers which are water-soluble; and at least one second monomer of the formula: wherein R is a hydrocarbyl radical which contributes hydrophobic character to the second monomer, Z is a divalent linking group, M is a divalent hydrocarbyl or substituted hydrocarbyl radical and Y is an ionic species which contributes hydrophilic character to the molecule. These compositions are useful for thickening aqueous mediums, in particular, for thickening equeous media containing water-soluble electrolytes. Such thickened aqueous media retain their viscosity when subjected to shear, heat or high electrolyte concentrations. The thickened aqueous solutions may be used in enhanced oil recovery processes as fluid mobility control agents, fracturing fluids and drilling muds, as well as hydraulic fluids and lubricants.
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Inventors:
KEI BUAN FUAN
SHIAMARARAO EBUANI
SHIAMARARAO EBUANI
Application Number:
JP28756286A
Publication Date:
July 11, 1987
Filing Date:
December 02, 1986
Export Citation:
Assignee:
DOW CHEMICAL CO
International Classes:
C08F20/10; C08F220/04; C08F220/56; C08F222/12; C09K8/588; C09K8/62; C10M173/00; C10M173/02; E21B43/22; E21B43/25; (IPC1-7): C08F222/12; C09K3/00
Attorney, Agent or Firm:
Kyozo Yuasa