摘要:
A method of treating a hydrocarbon-bearing formation and treated hydrocarbon-bearing formations. The method includes contacting the hydrocarbon-bearing formation with a composition having solvent and a fluorinated polymer. The fluorinated polymer has units having formula (I): A method for making a composition containing these units is also disclosed.
摘要:
Described are polymeric surfactants which include a fluorinated moiety and a non-fluorinated moiety where the fluorinated moiety contains two perfluoro-lower-alkyl sulfonamido segments in proximity to each other ; the surfactants provide more efficient and effective lowering of the surface tension of liquids and increase of wetting of a coating on a substrate surface.
摘要:
Described are monomeric fluorochemical surfactants having two perfluoroalkyl sulfonamido segments and two hydrophilic group, which are more efficient and effective in lowering the surface tension of organic solvents and water compared to other C4-based fluorochemical surfactants.
摘要:
Described are monomeric fluorosurfactants having two perfluoro-lower-alkyl sulfonamido segments which are more efficient and effective in lowering the surface tension of organic solvents and water compared to other C4-based fluorosurfactants.
摘要:
Described are perfluoro lower alkyl derived silanes having two perfluoroalkyl groups in close proximity to one another which in an organic solvent are useful in treating siliceous substrates; the compositions may optionally contain an additional non-fluorinated compound in a mixture or condensation product.
摘要:
Fluorinated polymers having first divalent units represented by formula, and a plurality of groups of formula —CH2—CH2—O—. Compositions containing the fluorinated polymer and solvent, and methods of treating hydrocarbon-bearing formations using these compositions are disclosed. A method of making a composition containing the fluorinated polymer is also disclosed.
摘要:
Fluorinated surfactants having a weight average molecular weight in a range from 1200 to 10000 grams per mole, wherein the fluorinated surfactant comprises at least one component represented by formula or a salt thereof, wherein: R is H, —CH3, or —CH2CO2H; and m is an integer having a value from 0 to 11. Z is a divalent segment consisting of copolymerized units of perfluoroalkanesulfonamidoalkyl (meth)acrylate and at least one of (meth)acrylic acid, β-carboxyethyl (meth)acrylic acid, or itaconic acid. The molar ratio of perfluoroalkanesulfonamidoalkyl to carboxylic acid groups in the fluorinated surfactant has a value from 0.5 to 3. Methods of making the fluorinated surfactants are also disclosed.
摘要翻译:重均分子量为1200〜10000克/摩尔的氟化表面活性剂,其中氟化表面活性剂包含至少一种由式或其盐表示的组分,其中:R为H,-CH 3或-CH 2 CO 2 H; m为0〜11的整数。Z为由(甲基)丙烯酸全氟烷基磺酰氨基烷基酯和(甲基)丙烯酸,(甲基)丙烯酸羧基乙酯,(甲基)丙烯酸等至少一种共聚单元构成的二价链段 衣康酸。 氟化表面活性剂中全氟烷基磺酰胺基烷基与羧酸基团的摩尔比为0.5-3。还公开了制备氟化表面活性剂的方法。
摘要:
Perfluoro lower alkanesulfonamide-derived silanes which in an organic solvent are useful in treating siliceous substrates are described. The compositions may optionally contain an additional non-fluorinated compound in a mixture or condensation product. Methods for preparing perfluoro lower alkanesulfonamide-derived silanes are also described.
摘要:
A composition comprising the condensation product of a least one fluorochemical polyether silane compound having a polyfluoropolyether segment and at least two hydrolysable silane groups per molecule, with one or more non-fluorinated compounds having at least two hydrolysable groups per molecule, and the reaction product thereof, is disclosed. The composition provides durable water, oil and stain repellency to a substrate.
摘要:
A method of modifying a surface of a hydrocarbon-bearing formation is disclosed. The method includes contacting the surface of the hydrocarbon-bearing formation with a fluorinated amine, and the surface of the hydrocarbon-bearing formation includes a carbonate. The method can typically include introducing a treatment composition comprising solvent and at least one of the fluorinated amine or a salt thereof into the carbonate hydrocarbon-bearing formation. Hydrocarbon-bearing formations treated according to the method are also disclosed. Certain fluorinated amines useful for treating carbonate hydrocarbon-bearing formations and methods of making them are also disclosed.