초록 ▼

Methods of forming by polymerization reaction a silicate gel which exhibits intumescence upon application of heat and various products formed from the resulting ceramic foam materials. Specific formulations and processing steps best suited to particular applications are set forth, together with exam

Methods of forming by polymerization reaction a silicate gel which exhibits intumescence upon application of heat and various products formed from the resulting ceramic foam materials. Specific formulations and processing steps best suited to particular applications are set forth, together with examples of various types and configurations of the resulting products. These include structural materials, such as sheets of wall board, very low density insulation materials, articles useful as a protective barrier from heat or flame, vitreous materials useful as heat resistant tiles or as abrasive wheels or blocks for grinding or polishing, and ceramic foam materials incorporating silica gel and processed solely with microwave heat.

대표청구항 ▼

A laminar structure for use as a fire and heat retardant product comprising a first layer of gel which exhibits intumescence upon application of heat formed by polymerization reaction by mixing at least one alkali metal chloride, bromide, iodide or nitrate in an aqueous solution of sodium silicate o

A laminar structure for use as a fire and heat retardant product comprising a first layer of gel which exhibits intumescence upon application of heat formed by polymerization reaction by mixing at least one alkali metal chloride, bromide, iodide or nitrate in an aqueous solution of sodium silicate or potassium silicate sandwiched between second and third, substrate layers, whereby upon exposure of said product to heat or flame said gel layer intumesces with consequent absorption and dissipation of heat through the production and release of steam in transition of said gel layer to a ceramic foam layer.