C
SECTION C — CHEMISTRY; METALLURGY
 C

Note(s)

  1. In section C, the definitions of groups of chemical elements are as follows:

    Alkali metals: Li, Na, K, Rb, Cs, Fr

    Alkaline earth metals: Ca, Sr, Ba, Ra

    Lanthanides: elements with atomic numbers 57 to 71 inclusive

    Rare earths: Sc, Y, Lanthanides

    Actinides: elements with atomic numbers 89 to 103 inclusive

    Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W

    Halogens: F, Cl, Br, I, At

    Noble gases: He, Ne, Ar, Kr, Xe, Rn

    Platinum group: Os, Ir, Pt, Ru, Rh, Pd

    Noble metals: Ag, Au, Platinum group

    Light metals: alkali metals, alkaline earth metals, Be, Al, Mg

    Heavy metals: metals other than light metals

    Iron group: Fe, Co, Ni

    Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens

    Metals: elements other than non-metals

    Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

  2. Section C covers:
    1. pure chemistry, which covers inorganic compounds, organic compounds, macromolecular compounds, and their methods of preparation;
    2. applied chemistry, which covers compositions containing the above compounds, such as: glass, ceramics, fertilisers, plastics compositions, paints, products of the petroleum industry. It also covers certain compositions on account of their having particular properties rendering them suitable for certain purposes, as in the case of explosives, dyestuffs, adhesives, lubricants, and detergents;
    3. certain marginal industries, such as the manufacture of coke and of solid or gaseous fuels, the production and refining of oils, fats and waxes, the fermentation industry (e.g., brewing and wine-making), the sugar industry;
    4. certain operations or treatments, which are either purely mechanical, e.g., the mechanical treatment of leather and skins, or partly mechanical, e.g., the treatment of water or the prevention of corrosion in general;
    5. metallurgy, ferrous or non-ferrous alloys.
    1. In the case of operations, treatments, products or articles having both a chemical and a non-chemical part or aspect, the general rule is that the chemical part or aspect is covered by section C.
    2. In some of these cases, the chemical part or aspect brings with it a non-chemical one, even though purely mechanical, because this latter aspect either is essential to the operation or treatment or constitutes an important element thereof. It has seemed, in fact, more logical not to dissociate the different parts or aspects of a coherent whole. This is the case for applied chemistry and for the industries, operations and treatments mentioned in Notes (1)(c), (d) and (e). For example, furnaces peculiar to the manufacture of glass are covered by class C03 and not by class F27.
    3. There are, however, some exceptions in which the mechanical (or non-chemical) aspect carries with it the chemical aspect, for example:
    4. In still other cases, the pure chemical aspect is covered by section C and the applied chemical aspect by another section, such as A, B or F, e.g., the use of a substance or composition for:
    5. When the chemical and mechanical aspects are so closely interlocked that a neat and simple division is not possible, or when certain mechanical processes follow as a natural or logical continuation of a chemical treatment, section C may cover, in addition to the chemical aspect, a part only of the mechanical aspect, e.g., after-treatment of artificial stone, covered by class C04. In this latter case, a note or a reference is usually given to make the position clear, even if sometimes the division is rather arbitrary.
  
CHEMISTRY
 C06
EXPLOSIVES; MATCHES
 C06F
MATCHES; MANUFACTURE OF MATCHES
P:20 C06F 1/00
Mechanical manufacture of matches
 C06F 1/02
·  Cutting match splints (independently of other operations B27L 9/00)
 C06F 1/04
·  Filling match splints into carrier bars; Discharging matches
 C06F 1/06
·  Dipping, coating, impregnating, or drying of matches (dipping or coating in general B05C, B05D; impregnating in general B27K; drying in general F26B)  [2]
 C06F 1/08
·  Carrier bars
 C06F 1/10
·  ·  Guiding means for carrier bars
 C06F 1/12
·  Filling matches into boxes (packaging in general B65B)
 C06F 1/14
·  Manufacture of ignition strips
 C06F 1/16
·  Manufacture of matches connected together, e.g. in bands or blocks
 C06F 1/18
·  Printing on matches or match-boxes when combined with match manufacture
 C06F 1/20
·  Applying strike-surfaces, e.g. on match-boxes, on match-books
 C06F 1/22
·  Assembling matches
 C06F 1/24
·  Safety devices against fire
 C06F 1/26
·  Machines for complete match manufacture
P:10 C06F 3/00
Chemical features in the manufacture of matches (ignition compositions C06B)
 C06F 3/02
·  Wooden strip for matches or substitute therefor
 C06F 3/04
·  ·  Chemical treatment before or after dipping, e.g. dyeing, impregnating
 C06F 3/08
·  Strike-surface compositions
P:0 C06F 5/00
Matches (match-books A24F 27/12)
 C06F 5/02
·  Permanent matches
 C06F 5/04
·  Wax matches