Abstract:
The current invention relates to families of scale-inhibitors having different UV/VIS absorption profiles and their application in a method for stimulating an oilfield comprising those families.
Abstract:
Novel dicarboxylic acid diesters and admixture thereof have the formula (I): R1—OOC-A-COOR2 (I) and are advantageously prepared from fusel oils; these are particularly suited for formulation into useful solvent, cosolvent, stripping, crystallization inhibiting, cleaning and degreasing compositions.
Abstract:
Composite core/sheath particulates comprising an organic polymer core at least partly coated with calcium carbonate, these core/sheath particulates having a mean particle size not exceeding 5 .mu.m, well suited for reinforcing plastic/elastomer substrates, are conveniently converted, e.g., via calcination, into hollow calcium carbonate microbeads which comprise CaCO.sub.3 shells having a mean particle size not exceeding 5 .mu.m; such hollow microbeads are themselves well suited for enhancing the low-temperature flexibility of elastomer substrates, notably vehicle tires.
Abstract:
The invention relates to a copolymer having: A) at least one monomer unit a) derived from at least one ethylenically unsaturated aliphatic monocarboxylic or polycarboxylic acid, a corresponding anhydride, or a corresponding water-soluble salt; B) at least one monomer unit b) derived from a particular sulfonated or sulfated ethylenically unsaturated ether or at least one monomer unit (b′) derived from a sulfonated ethylenically unsaturated monomer other than (b), C) at least one monomer unit (c) derived from a monomer with the average general formula [CH2═CH—CH2—R6—O—]xP(═O)(OM)3-x. The invention also relates to a method for preparing such a copolymer, an inhibitor composition including such a copolymer, and a method for inhibiting inorganic deposits in a petroleum reservoir by means of said inhibitor composition.
Abstract:
Composite particles having a core consisting of an organic polymer and a coating including at least one aluminum, silicon, zirconium and/or transition metal oxide and/or hydroxide, and optionally containing calcium carbonate, as well as methods for preparing same, are disclosed. The use of said composite particles for preparing hollow particles with a shell of the same kind as the above-mentioned coating is also disclosed. Finally, the use of said hollow composite particles as fillers or additives in plastics and elastomers is disclosed.
Abstract:
The current invention relates to families of scale-inhibitors having different UV/VIS absorption profiles and their application in a method for stimulating an oilfield comprising those families.
Abstract:
The present invention relates to an Automatic Dishwashing (ADW) detergent composition comprising at least one cationic polysaccharide of molecular weight of less than 1,000,000 g/mol. The invention also relates to a method for eliminating, limiting or preventing the spotting and/or filming phenomena during the washing comprising the use of a detergent composition according to claim 1.
Abstract:
The invention relates to a copolymer having: A) at least one monomer unit a) derived from at least one ethylenically unsaturated aliphatic monocarboxylic or polycarboxylic acid, a corresponding anhydride, or a corresponding water-soluble salt; B) at least one monomer unit b) derived from a particular sulfonated or sulfated ethylenically unsaturated ether or at least one monomer unit (b′) derived from a sulfonated ethylenically unsaturated monomer other than (b), C) at least one monomer unit (c) derived from a monomer with the average general formula [CH2═CH—CH2—R6—O—]xP(═O)(OM)3-x. The invention also relates to a method for preparing such a copolymer, an inhibitor composition including such a copolymer, and a method for inhibiting inorganic deposits in a petroleum reservoir by means of said inhibitor composition.
Abstract:
The present invention relates to an Automatic Dishwashing (ADW) detergent composition comprising at least one cationic polysaccharide of molecular weight of less than 1,000,000 g/mol. The invention also relates to a method for eliminating, limiting or preventing the spotting and/or filming phenomena during the washing comprising the use of a detergent composition according to claim 1.
Abstract:
Novel dicarboxylic acid diesters and admixture thereof have the formula (I): R1—OOC-A-COOR2 (I) and are advantageously prepared from fusel oils; these are particularly suited for formulation into useful solvent, cosolvent, stripping, crystallization inhibiting, cleaning and degreasing compositions.