C04B24/023

Two component cement composition
09950954 · 2018-04-24 · ·

The invention relates to a cement formulation with two liquid components. This alleviates the problems which result from dust generation where a powdered cement component is employed. Furthermore, the cement may be formed with conventional liquid handling and mixing equipment. The cement binder formulation includes a plasticizer. As the plasticizer is non-volatile, it remains an integral part of both the formulation and the final product obtained after application and drying of that formulation.

DRY GRINDING OF MINERAL MATERIALS, GROUND MINERAL MATERIALS, AND THEIR USE IN CONSTRUCTION MATERIALS

The use of a grinding additive during the dry grinding of mineral materials, especially limestone, characterized in that the grinding additive is selected from the group made of alkanolamines, glycols, glycerol, sugars, sugar acids, carboxylic acids or their salts, superplasticizers, superabsorbent polymers, or mixtures thereof. Also, ground mineral materials, especially ground limestone, including the additives and the use of the ground mineral materials, especially ground limestone, in cement and/or construction materials.

METHOD FOR PRODUCING A THERMALLY INSULATING MORTAR
20180086674 · 2018-03-29 ·

A method for producing a thermally insulating mortar includes introducing water, cement and a liquid surfactant containing a foam concentrate that forms a foam in a predetermined mixing ratio into a mixing device provided with a mixing impeller, and rotating the mixing impeller at a very high speed, wherein a homogeneous mixing between the water, the cement and the formed foam occurs.

METHOD FOR PRODUCING A THERMALLY INSULATING MORTAR
20180086674 · 2018-03-29 ·

A method for producing a thermally insulating mortar includes introducing water, cement and a liquid surfactant containing a foam concentrate that forms a foam in a predetermined mixing ratio into a mixing device provided with a mixing impeller, and rotating the mixing impeller at a very high speed, wherein a homogeneous mixing between the water, the cement and the formed foam occurs.

Robust binder, which is independent from the influence of catalytically active substances, for use in the crude oil and natural gas industry

The invention relates to a method of stabilizing the bonding agent gelation time in the consolidation of a geological formation in the presence of one or more catalytically active substances, in which method a bonding agent is infiltrated into the formation, a portion of the infiltrated bonding agent is optionally expelled by flushing with a gas or a liquid, and the bonding agent remaining in the formation is cured. the bonding agent comprises a mixture of a) a heterocondensate, obtainable by hydrolysis and condensation of at least one hydrolyzable silicon compound and at least one metal, phosphorus or boron compound, the metal being selected from Al, Ge, Sn, Pb, Ti, Mg, Li, V, Nb, Ta, Zr and Hf, B) at least one organic polymerizable monomer or oligomer comprising a C-C double bond, and C) at least one thermal polymerization initiator without peroxide function.

Robust binder, which is independent from the influence of catalytically active substances, for use in the crude oil and natural gas industry

The invention relates to a method of stabilizing the bonding agent gelation time in the consolidation of a geological formation in the presence of one or more catalytically active substances, in which method a bonding agent is infiltrated into the formation, a portion of the infiltrated bonding agent is optionally expelled by flushing with a gas or a liquid, and the bonding agent remaining in the formation is cured. the bonding agent comprises a mixture of a) a heterocondensate, obtainable by hydrolysis and condensation of at least one hydrolyzable silicon compound and at least one metal, phosphorus or boron compound, the metal being selected from Al, Ge, Sn, Pb, Ti, Mg, Li, V, Nb, Ta, Zr and Hf, B) at least one organic polymerizable monomer or oligomer comprising a C-C double bond, and C) at least one thermal polymerization initiator without peroxide function.

Thin insulation coatings by sol-gel method

Electrically insulating Al.sub.2O.sub.3SiO.sub.2 thin coatings have been deposited on long-length 316 stainless steel (SS) tape using a reel-to-reel continuous sol-gel dip coating process for co-winding insulation into YBCO pancake coils, a high temperature superconductor magnet technology. Coatings with a thickness of 2 m are achieved after just one dip with a tape withdrawal speed of 16 mm/s (1 m/min) and a calcination at 700 C. The coatings were measured to have a room-temperature breakdown voltage of about 100 V, corresponding to a dc dielectric strength of about 50 MV/m. Consequently, this process has low cost and high throughput and produces a thin electrical insulation with excellent thermal, dielectric, and mechanical properties. A new technique has been developed in the coating process to mitigate coating buildup near the edges of the tape.

Thin insulation coatings by sol-gel method

Electrically insulating Al.sub.2O.sub.3SiO.sub.2 thin coatings have been deposited on long-length 316 stainless steel (SS) tape using a reel-to-reel continuous sol-gel dip coating process for co-winding insulation into YBCO pancake coils, a high temperature superconductor magnet technology. Coatings with a thickness of 2 m are achieved after just one dip with a tape withdrawal speed of 16 mm/s (1 m/min) and a calcination at 700 C. The coatings were measured to have a room-temperature breakdown voltage of about 100 V, corresponding to a dc dielectric strength of about 50 MV/m. Consequently, this process has low cost and high throughput and produces a thin electrical insulation with excellent thermal, dielectric, and mechanical properties. A new technique has been developed in the coating process to mitigate coating buildup near the edges of the tape.

SEPARATORS FOR ELECTROCHEMICAL CELLS

Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic subsituents. Also provided are electrochemical cells comprising such separators.

SEPARATORS FOR ELECTROCHEMICAL CELLS

Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic subsituents. Also provided are electrochemical cells comprising such separators.