Disclosed herein is an oil dispersant composition that contains an acyl amino acid ionic liquid, a dicationic ionic liquid, a fruit acid ionic liquid, a polyacid ionic liquid, and an ethoxylate oleyl ether ionic liquid. The composition may also be diluted with water. The composition is useful for dispersing an oil spill in a body of water, while being less toxic to the aquatic environment and also acting to stimulate bacterial growth in said aquatic environment.

Some reservoirs have tight oil formations, such as the Changqing reservoir. The surfactant polymer flooding and low tension gas flooding are two potential chemical flooding methods for use in tight oil formations. In these methods, an oil displacement agent, or surfactant, is added. Nonionic surfactants with extended chains (by propylene oxide and ethylene oxide) from dialkyl alcohols or dialkyl amines were tested. A synergistic blend of surfactants was developed between the nonionic surfactants and anionic surfactants that lowers interfacial tension and improves surfactant solubility in water and oil.

Some reservoirs have tight oil formations, such as the Changqing reservoir. The surfactant polymer flooding and low tension gas flooding are two potential chemical flooding methods for use in tight oil formations. In these methods, an oil displacement agent, or surfactant, is added. Nonionic surfactants with extended chains (by propylene oxide and ethylene oxide) from dialkyl alcohols or dialkyl amines were tested. A synergistic blend of surfactants was developed between the nonionic surfactants and anionic surfactants that lowers interfacial tension and improves surfactant solubility in water and oil.

A dispersant is provided comprising a blend of mono- and di-phosphate esters, each phosphate group being substituted with either one or two alkyl or alkenyl alkoxylate groups wherein the alkyl or alkenyl portion is a branched alkyl or alkenyl radical comprising 1-30 carbon atoms, the alkoxylate portion comprises ethoxylate monomers and/or propoxylate monomers, and the dispersant further comprises a basic component selected from an amidopropyldimethylamine, a heterocyclic amine, an ammonium ion, and an alkali metal ion. The dispersant is suitable for dispersing a variety of pigments and other particulate matter in either aqueous or organic media.

The invention relates to aqueous polymer dispersions comprising at least one polymer obtainable by the reaction of at least one monomer M1 of the general formula (I): H.sub.2C═CH—C(O)OR, wherein R is an unbranched alkyl chain comprising from 18 to 22 carbon atoms, and optionally at least one monomer M2. The invention relates moreover to a method for the preparing of such aqueous polymer dispersion and the use thereof as pour point depressant for crude oil, petroleum, and petroleum products.

Disclosed herein is an oil dispersant composition that contains an acyl amino acid ionic liquid, a dicationic ionic liquid, a fruit acid ionic liquid, a polyacid ionic liquid, and an ethoxylate oleyl ether ionic liquid. The composition may also be diluted with water. The composition is useful for dispersing an oil spill in a body of water, while being less toxic to the aquatic environment and also acting to stimulate bacterial growth in said aquatic environment.

The present invention is directed to an ophthalmic emulsion. The emulsion has a unique combination of ingredients that promotes the stability of small oil droplets within the emulsion. The emulsion also includes a mucoadhesive polymer that aid in delivering a lipid to the ocular surface.

The use of long-chain phosphoric acid esters as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.

The use of surfactant formulations comprising long-chain alcohols as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.

Provided is a polyaspartic composition comprising a reaction product of a polyamine with a Michael addition receptor, a pigment, and from >0% to ≤3% of a phosphoric acid ester dispersant, wherein the percentage is calculated as (weight of dispersant solids/weight of pigment solids)×100. The inventive polyaspartic compositions may be reacted with a polyisocyanate to provide coatings, adhesives, sealants, composites, castings, and films having a stable initial gloss. Also provided is a method of increasing 60° gloss in a cured polyurea or polyurethane composition, the method comprising reacting a polyisocyanate with the inventive polyaspartic composition to form a reaction product and curing the reaction product, wherein 60° gloss of the cured polyurea or polyurethane composition is ≥80%. The high 60° gloss is maintained over at least one-week, and in some cases over at least four weeks, at 40° C. and 80% relative humidity.