Amphoteric water-in-oil self-inverting polymer emulsion

Patent · Tue Mar 19 04:00:00 EST 1985

OSTI ID:5550455

Lipowski, S A; Miskel, Jr, J J

An amphoteric water-in-oil self-inverting polymer emulsion is prepared which contains a copolymer of a nonionic vinyl monomer and an amphoteric vinyl monomer or a terpolymer of (1) a nonionic vinyl monomer, an anionic vinyl monomer and a cationic vinyl monomer in the aqueous phase, a hydrocarbon oil for the oil phase, a water-in-oil emulsifying agent and an inverting surfactant. An example of a copolymer is a copolymer of a nonionic vinyl monomer such as acrylamide or methacrylamide and an amphoteric vinyl monomer such as a reaction product of dimethylaminoethyl methacrylate and monochloroacetic acid. An example of a terpolymer is a terpolymer of a nonionic vinyl monomer such as acrylamide or methacrylamide, an anionic vinyl monomer such as sodium acrylate and a cationic vinyl monomer such as a triethyl ammonium ethyl methacrylate methosulfate salt. The emulsion is useful in papermaking, treatment of sewage and industrial wastes, drilling muds and secondary and tertiary recovery of petroleum by water flooding.

• Assignee: Diamond Shamrock Chemicals Co.
• Patent Number(s): US 4505828
• OSTI ID: 5550455
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ACETIC ACID
ACRYLATES
ADDITIVES
ALKALI METAL COMPOUNDS
AMIDES
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL PREPARATION
COLLOIDS
COPOLYMERS
DISPERSIONS
DISPLACEMENT FLUIDS
DRILLING FLUIDS
EMULSIFIERS
EMULSIONS
FLUID INJECTION
FLUIDS
MANAGEMENT
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
MONOCARBOXYLIC ACIDS
MONOMERS
OIL WELLS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
PROCESSING
SEWAGE
SODIUM COMPOUNDS
SYNTHESIS
VINYL MONOMERS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATERFLOODING
WELLS