Geopolymer cement slurries, cured geopolymer cements, and methods of making cured geopolymer cement and methods of using geopolymer cement slurries are provided. The geopolymer cement slurry comprises Saudi Arabian volcanic ash, an aqueous solution, Na.sub.2SiO.sub.3, NaOH, and a resin. The Saudi Arabian volcanic ash comprises SO.sub.3, CaO, SiO.sub.2, Al.sub.2O.sub.3, Fe.sub.2O.sub.3, MgO, and K.sub.2O.

Geopolymer cement slurries, cured geopolymer cements, and methods of making cured geopolymer cement and methods of using geopolymer cement slurries are provided. The geopolymer cement slurry comprises Saudi Arabian volcanic ash, an aqueous solution, Na.sub.2SiO.sub.3, NaOH, and a resin. The Saudi Arabian volcanic ash comprises SO.sub.3, CaO, SiO.sub.2, Al.sub.2O.sub.3, Fe.sub.2O.sub.3, MgO, and K.sub.2O.

[Object]

To provide the friction material for the disc brake such as an automobile, which is manufactured by forming the NAO friction material composition, enabling to restrain the brake vibration during braking in a high temperature.

[Means to Resolve]

In the friction material for the disc brake pad, which is manufactured by forming the NAO friction material composition that does not contain the copper component but contains the binder, the fiber base, the organic friction modifier, the inorganic friction modifier, and the lubricant, the friction material composition contains 1-4 weight % of the cashew dust as the organic friction modifier relative to the entire amount of the friction material composition, 7-12 weight % of the muscovite as the inorganic friction modifier relative to the entire friction material composition, and 0.5-5 weight % of the aluminum particle as the inorganic friction modifier relative to the entire amount of the friction material composition.

[Object]

To provide the friction material for the disc brake pad such as an automobile, which is manufactured by forming the NAO friction material composition, enabling to restrain the brake vibration during braking in a high temperature.

[Means to Resolve]

In the friction material, which is manufactured by forming the NAO friction material composition that does not contain the copper component but contains the binder, the fiber base, the organic friction modifier, the inorganic friction modifier, and the lubricant, the friction material composition contains 5-9 weight % of the binder relative to the entire amount of the friction material composition, 1-4 weight % of the silicone rubber modified phenol resin as a part of the binder relative to the entire amount of the friction material composition, 1-4 weight % of a cashew dust as the organic friction modifier relative to the entire amount of the friction material composition, 0.5-3 weight % of a fused silica with the average particle diameter of 15-40 μm as the inorganic friction modifier relative to the entire amount of the friction material composition, and 0.1-2 weight % of the electromelting zirconium silicate beads with the average particle diameter of 10-30 μm as the inorganic friction modifier relative to the entire amount of the friction material composition.

The invention relates to a curable casting compound for the manufacture of molded plastics, comprising a binder component composition and a composition of the filler component, wherein the filler component composition comprise at least one magnetic metal oxide, in particular magnetite, in a proportion of 1 to 100 percent by weight, in relation to the total mass of the composition of the filler component.

The invention relates to a curable casting compound for the manufacture of molded plastics, comprising a binder component composition and a composition of the filler component, wherein the filler component composition comprise at least one magnetic metal oxide, in particular magnetite, in a proportion of 1 to 100 percent by weight, in relation to the total mass of the composition of the filler component.

Thermoset ceramic compositions and a method of preparation of such compositions. The compositions are advanced organic/inorganic hybrid composite polymer ceramic alloys. The material combines strength, hardness and high temperature performance of technical ceramics with the strength, ductility, thermal shock resistance, density, and easy processing of the polymer. Consisting of a branched backbone of silicon, and alumina, with highly coordinated Si—O—Si or Al—O—Al bonds, the material undergoes sintering at 7 to 300 centigrade for 2 to 94 hours from water at a pH between 0 to 14, humidity of 0 to 100%, with or without vaporous solvents.

Thermoset ceramic compositions and a method of preparation of such compositions. The compositions are advanced organic/inorganic hybrid composite polymer ceramic alloys. The material combines strength, hardness and high temperature performance of technical ceramics with the strength, ductility, thermal shock resistance, density, and easy processing of the polymer. Consisting of a branched backbone of silicon, and alumina, with highly coordinated Si—O—Si or Al—O—Al bonds, the material undergoes sintering at 7 to 300 centigrade for 2 to 94 hours from water at a pH between 0 to 14, humidity of 0 to 100%, with or without vaporous solvents.

Provided are solvent cement formulations that include cyclopentanone, one or more additional solvents, and at least one resin. The formulations can contain a high concentration of dissolved resin, which confers beneficial properties and enables the use of the formulations for bonding large diameter piping components.

Provided are solvent cement formulations that include cyclopentanone, one or more additional solvents, and at least one resin. The formulations can contain a high concentration of dissolved resin, which confers beneficial properties and enables the use of the formulations for bonding large diameter piping components.