ClassID:

89101

C04B38/0625 - CPC Classification

Classification description:

Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles the burned-out substance being formed , e.g. by polymerisation of a prepolymer composition containing ceramic powder involving a foaming step of the burnable material

Recent Application in this class: