The present invention relates to a process for preparing a poly(meth)acrylic acid, characterized in that a (meth)acrylic acid-containing process stream from (meth)acrolein synthesis is subjected to free-radical polymerization. The invention also relates to the esterification of the polymer obtained to give a homopolymer or copolymer ester, and to the use thereof as additive, flow improver and water reducer.

The invention relates to a composition in the form of a solid and suitable as a dispersant for inorganic solids suspensions, comprising A) at least one water-soluble polymer comprising polyether groups, and B) at least one water-soluble condensation product comprising acid groups and/or salts thereof and based on monomers, the monomers comprising at least ) a monomer having a ketone radical and ) formaldehyde. Further disclosed are a method for producing the composition of the invention, and the use thereof in an inorganic binder composition.

The present invention refers to a new concrete composition comprising fiberglass waste and an air-entraining additive. The concrete presents a thermo-insulating performance far superior to conventionally produced concretes. The present invention is mainly intended for the construction industry, in non-structural applications for thermal insulation. The use of fiberglass waste reduces the consumption of natural aggregates and allows for the use of waste which is expense to dispose of.

The present invention refers to a new concrete composition comprising fiberglass waste and an air-entraining additive. The concrete presents a thermo-insulating performance far superior to conventionally produced concretes. The present invention is mainly intended for the construction industry, in non-structural applications for thermal insulation. The use of fiberglass waste reduces the consumption of natural aggregates and allows for the use of waste which is expense to dispose of.

An injection molding apparatus including a ceramic powder material injection device, a supercritical fluid providing device, and a mold is provided. The ceramic powder material injection device is adapted to contain a ceramic powder material. The supercritical fluid providing device is adapted to provide a supercritical fluid to the ceramic powder material injection device. The mold has a molding concavity, wherein the ceramic powder material injection device is adapted to mix the ceramic powder material and the supercritical fluid to form a mixed material and inject the mixed material into the molding concavity. In addition, an injection molding method is also provided.

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.

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.

Clean version of the Abstract A production method of ready injection material aims at developing natural hydraulic lime at nano-size by using a single raw material. The production method includes: selecting marl, comprising at least 70% CaCO.sub.3, as the raw material, grinding the marl to have particle size lower than 400 lam, calcining the marl at a temperature between 1000-1200 C., re-grinding the marl after the calcination process, reducing a d.sub.90 particle size of calcined marl to between 200-700 nm after the grinding process, applying a dry mixing process to the material having a reduced particle size, adding water to the material after dry mixing and applying mechanical mixing process during duration between 3-6 minutes at a revolution between 800-1000 rpm, adding super-fluidizing chemical additive to the obtained material, and mixing the material for duration between 3-6 minutes by using ultrasonic homogenizer and mechanic mixing.

The present invention refers to a new concrete composition comprising fiberglass waste and an air-entraining additive. The concrete presents a thermo-insulating performance far superior to conventionally produced concretes. The present invention is mainly intended for the construction industry, in non-structural applications for thermal insulation. The use of fiberglass waste reduces the consumption of natural aggregates and allows for the use of waste which is expense to dispose of.

The present invention refers to a new concrete composition comprising fiberglass waste and an air-entraining additive. The concrete presents a thermo-insulating performance far superior to conventionally produced concretes. The present invention is mainly intended for the construction industry, in non-structural applications for thermal insulation. The use of fiberglass waste reduces the consumption of natural aggregates and allows for the use of waste which is expense to dispose of.