IPC 2013 : C04 : CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES.

IPC2013 > C > C04[c] > CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES.
Notes[t] C01 - C14: CHEMISTRY
Notes[n] C04:
  • This class does not cover mechanical features provided for elsewhere, e.g. mechanical working B28, kilns F27 .
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS (devitrified glass-ceramics C03C 10/00 ); REFRACTORIES (alloys based on refractory metals C22C ); TREATMENT OF NATURAL STONE.
Notes[n] C04B:
  • In this subclass, the following terms or expressions are used with the meanings indicated:
    • "fillers" includes pigments, aggregates and fibrous reinforcing materials;
    • "active ingredients" includes processing aids or property improvers, e.g. grinding aids used after the burning process or used in the absence of a burning process;
    • "mortars", "concrete" and "artificial stone" are to be considered as a single group of materials, and therefore, in the absence of an indication to be contrary, they include mortar, concrete and other cementitious compositions.