Dispersing agents
Patent
·
OSTI ID:6387197
This patent describes a dispersion of hydrophobic particles in an aqueous medium containing a polymeric dispersing agent, wherein the viscosity of the dispersion is reduced by the presence of a thinning amount of dispersing agent and the dispersing agent is a water-soluble polymer comprising, by weight: (a) 30-99% of an ionic water-soluble ethylenically unsaturated monomer, which is free of polyalkylene oxide chains and of other substituents creating side chains of longer than 6 atoms chain length, and (b) 1-70% of an ethylenically unsaturated monomer that carries a pendant group-B/sub n/R wherein B is ethyleneoxy, n is an integer of at least 5, and R is a hydrocarbyl group containing 8 to 30 carbon atoms, the polymer having a molecular weight in the range 500-100000.
- Assignee:
- Allied Colloids Limited, West Yorkshire
- Patent Number(s):
- US 4792343
- OSTI ID:
- 6387197
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKENES
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
DISPERSIONS
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
ETHYLENE
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
MIXTURES
MONOMERS
OIL WELLS
ORGANIC COMPOUNDS
PARTICLES
PARTICULATES
PETROLEUM
POLYMERS
RECOVERY
SOLUTIONS
STIMULATION
VISCOSITY
WATERFLOODING
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
ALKENES
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
DISPERSIONS
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
ETHYLENE
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
MIXTURES
MONOMERS
OIL WELLS
ORGANIC COMPOUNDS
PARTICLES
PARTICULATES
PETROLEUM
POLYMERS
RECOVERY
SOLUTIONS
STIMULATION
VISCOSITY
WATERFLOODING
WELL STIMULATION
WELLS