C
SECTION C — CHEMISTRY; METALLURGY
 C

Note(s)

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

  
CHEMISTRY
 C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
 C09K
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
 C09K

Note(s)

  1. This subclass covers also the use of specified materials in general or their use for the applications not specifically provided for elsewhere.
  2. In this subclass, the following term is used with the meaning indicated: [4]
    • "materials" includes compositions. [4]
 C09K 3/00
Miscellaneous materials not provided for elsewhere  [2]
 C09K 3/10
·  for sealing or packing joints or covers (filling pastes C09D 5/34)
 C09K 3/12
·  for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D 5/34)
 C09K 3/14
·  Anti-slip materials; Abrasives (manufacture of abrasive or friction articles or shaped materials, containing macromolecular substances C08J 5/14)
 C09K 3/16
·  Anti-static materials
 C09K 3/18
·  for application to surface to minimize adherence of ice, mist or water thereto (rendering particulate materials free flowing, in general, e.g. making them hydrophobic, B01J 2/30); Thawing or antifreeze materials for application to surfaces (used in liquids for transfer of heat or producing temperature differences, e.g. radiator liquids, C09K 5/00)
 C09K 3/20
·  as substitutes for glycerol in its non-chemical uses, e.g. as a base in toilet creams or ointments
 C09K 3/22
·  for dust-laying or dust-absorbing
 C09K 3/24
·  for simulating ice or snow
 C09K 3/28
( transferred to C09K 21/00 )
 C09K 3/30
·  for aerosols (aerosol containers B65D 83/14)
 C09K 3/32
·  for treating liquid pollutants, e.g. oil, gasoline, fat (solid sorbent compositions B01J 20/00; for treatment of water, waste water or sewage C02F)  [2]
 C09K 3/34
( transferred to C09K 19/00 )
 C09K 5/00
Materials for transfer of heat or for producing temperature differences other than by combustion  [2]
 C09K 5/02
·  the heat effect being accompanied by a change of physical state  [2]
 C09K 5/04
·  ·  the change of state being from liquid to vapour or vice-versa  [2]
 C09K 5/06
·  ·  the change of state being from liquid to solid or vice-versa  [2]
 C09K 7/00
Well-drilling compositions  [2]
 C09K 7/00

Note(s)

In this group, compositions are classified according to their major constituent. [2]

 C09K 7/02
·  Aqueous fluids containing organic or inorganic compounds  [2]
 C09K 7/04
·  ·  containing inorganic compounds only  [2]
 C09K 7/06
·  Non-aqueous liquids, e.g. oil-based  [2]
 C09K 7/08
·  Gaseous fluids  [2]
 C09K 9/00
Tenebrescent materials, i.e. materials for which the range of wavelengths for energy adsorption is changed as a result of excitation by some form of energy (photographic compositions G03C 1/00)  [2]
 C09K 9/02
·  Organic tenebrescent materials  [2]
 C09K 11/00
Luminescent, e.g. electroluminescent, chemiluminescent, materials  [2]
 C09K 11/01
·  Recovery of luminescent materials  [3]
 C09K 11/02
·  Use of particular materials as binders, particle coatings or suspension media therefor  [2]
 C09K 11/04
·  containing natural or artificial radioactive elements or unspecified radioactive elements  [2]
 C09K 11/06
·  containing organic luminescent materials  [2]
 C09K 11/07
·  ·  having chemically-interreactive components, e.g. reactive chemiluminescent compositions  [3]
 C09K 11/08
·  containing inorganic luminescent materials  [2]
 C09K 11/10 - 
C09K 11/52
( transferred to C09K 11/54-C09K 11/89 )
 C09K 11/54 - 
C09K 11/89

Note(s)

In groups C09K 11/54-C09K 11/89, in the absence of an indication to the contrary, materials are classified in the last appropriate place; however, activating constituents of the luminescent materials are disregarded for classification purposes. [4]

 C09K 11/54
·  ·  containing zinc or cadmium  [4]
 C09K 11/55
·  ·  containing beryllium, magnesium, alkali metals or alkaline earth metals  [4]
 C09K 11/56
·  ·  containing sulphur  [4]
 C09K 11/57
·  ·  containing manganese or rhenium  [4]
 C09K 11/58
·  ·  containing copper, silver or gold  [4]
 C09K 11/59
·  ·  containing silicon  [4]
 C09K 11/60
·  ·  containing iron, cobalt or nickel  [4]
 C09K 11/61
·  ·  containing fluorine, chlorine, bromine, iodine or unspecified halogen elements  [4]
 C09K 11/62
·  ·  containing gallium, indium or thallium  [4]
 C09K 11/63
·  ·  containing boron  [4]
 C09K 11/64
·  ·  containing aluminium  [4]
 C09K 11/65
·  ·  containing carbon (in organic compounds C09K 11/06)  [4]
 C09K 11/66
·  ·  containing germanium, tin or lead  [4]
 C09K 11/67
·  ·  containing refractory metals  [4]
 C09K 11/68
·  ·  ·  containing chromium, molybdenum or tungsten  [4]
 C09K 11/69
·  ·  ·  containing vanadium  [4]
 C09K 11/70
·  ·  containing phosphorus  [4]
 C09K 11/71
·  ·  ·  also containing alkaline earth metals  [4]
 C09K 11/72
·  ·  ·  also containing halogen, e.g. halophosphates  [4]
 C09K 11/73
·  ·  ·  ·  also containing alkaline earth metals  [4]
 C09K 11/74
·  ·  containing arsenic, antimony or bismuth  [4]
 C09K 11/75
·  ·  ·  containing antimony  [4]
 C09K 11/76
·  ·  ·  ·  also containing phosphorus and halogen, e.g. halophosphates  [4]
 C09K 11/77
·  ·  containing rare earth metals  [4]
 C09K 11/78
·  ·  ·  containing oxygen  [4]
 C09K 11/79
·  ·  ·  containing silicon  [4]
 C09K 11/80
·  ·  ·  containing aluminium or gallium  [4]
 C09K 11/81
·  ·  ·  containing phosphorus  [4]
 C09K 11/82
·  ·  ·  containing vanadium  [4]
 C09K 11/83
·  ·  ·  containing vanadium and phosphorus  [4]
 C09K 11/84
·  ·  ·  containing sulphur, e.g. oxysulphides  [4]
 C09K 11/85
·  ·  ·  containing halogen  [4]
 C09K 11/86
·  ·  ·  containing oxygen and halogen, e.g. oxyhalides  [4]
 C09K 11/87
·  ·  containing platinum group metals  [4]
 C09K 11/88
·  ·  containing selenium, tellurium or unspecified chalcogen elements  [4]
 C09K 11/89
·  ·  containing mercury  [4]
 C09K 13/00
Etching, surface-brightening or pickling compositions (for glass C03C 15/00; for metallic material C23F, C23G 1/00, C25F 1/00)  [2]
 C09K 13/00

Note(s)

In groups C09K 13/02-C09K 13/12, a composition is classified in the last appropriate place. [2]

 C09K 13/02
·  containing an alkali metal hydroxide  [2]
 C09K 13/04
·  containing an inorganic acid  [2]
 C09K 13/06
·  ·  with organic material  [2]
 C09K 13/08
·  ·  containing a fluorine compound  [2]
 C09K 13/10
·  ·  containing a boron compound  [2]
 C09K 13/12
·  containing heavy metal salts in an amount of at least 50% of the non-solvent components  [2]
 C09K 15/00
Anti-oxidant compositions; Compositions inhibiting chemical change (incorporated in foodstuffs A21D, A23; incorporated in macromolecular compositions C08; incorporated in liquid fuels or lubricants C10; incorporated in fats, fatty substances, fatty oils or waxes C11B 5/00; incorporated in detergents C11D; corrosion inhibiting compositions for metallic material C23F 11/00; incorporated in pickling compositions for metallic materials C23G)  [2]
 C09K 15/00

Note(s)

  1. In groups C09K 15/02-C09K 15/34, in the absence of an indication to the contrary, a composition is classified in the last appropriate place. [2]
  2. In this group, a metal salt of an organic compound is classified as that compound. [2]
 C09K 15/02
·  containing inorganic compounds  [2]
 C09K 15/04
·  containing organic compounds  [2]
 C09K 15/06
·  ·  containing oxygen  [2]
 C09K 15/08
·  ·  ·  containing a phenol or quinone moiety  [2]
 C09K 15/10
·  ·  containing sulphur  [2]
 C09K 15/12
·  ·  containing sulphur and oxygen  [2]
 C09K 15/14
·  ·  ·  containing a phenol or quinone moiety  [2]
 C09K 15/16
·  ·  containing nitrogen  [2]
 C09K 15/18
·  ·  ·  containing an amine or imine moiety  [2]
 C09K 15/20
·  ·  containing nitrogen and oxygen  [2]
 C09K 15/22
·  ·  ·  containing an amide or imide moiety  [2]
 C09K 15/24
·  ·  ·  containing a phenol or quinone moiety  [2]
 C09K 15/26
·  ·  containing nitrogen and sulphur  [2]
 C09K 15/28
·  ·  containing nitrogen, oxygen and sulphur  [2]
 C09K 15/30
·  ·  containing heterocyclic ring with at least one nitrogen atom as ring member  [2]
 C09K 15/32
·  ·  containing boron, silicon, phosphorus, selenium, tellurium or a metal  [2]
 C09K 15/34
·  containing plant or animal materials of unknown composition  [2]
 C09K 17/00
Soil-conditioning materials or soil-stabilising materials, e.g. mulches (fertilisers C05; consolidating by placing solidifying or pore filling substances in the soil E02D 3/12)  [3]
 C09K 19/00
Liquid crystal materials  [4]
 C09K 19/00

Note(s)

  1. In groups C09K 19/02-C09K 19/60, in the absence of an indication to the contrary, materials are classified in the last appropriate place. [4]
  2. Mixtures containing two or more liquid crystal compounds covered individually by the same one of groups C09K 19/04-C09K 19/40 are classified only in that group. [4]
  3. If liquid crystal components of the mixtures classified in groups C09K 19/42-C09K 19/50 are of importance as such, they should also be classified according to the compounds in groups C09K 19/04-C09K 19/40[4]
 C09K 19/02
·  characterised by optical, electrical or physical properties of the components, in general  [4]
 C09K 19/04
·  characterised by the chemical structure of the liquid crystal components  [4]
 C09K 19/06
·  ·  Non-steroidal liquid crystal compounds  [4]
 C09K 19/08
·  ·  ·  containing at least two non-condensed rings  [4]
 C09K 19/10
·  ·  ·  ·  containing at least two benzene rings  [4]
 C09K 19/12
·  ·  ·  ·  ·  at least two benzene rings directly linked, e.g. biphenyls  [4]
 C09K 19/14
·  ·  ·  ·  ·  linked by a carbon chain  [4]
 C09K 19/16
·  ·  ·  ·  ·  ·  the chain containing carbon-to-carbon double bonds, e.g. stilbenes  [4]
 C09K 19/18
·  ·  ·  ·  ·  ·  the chain containing carbon-to-carbon triple bonds, e.g. tolans  [4]
 C09K 19/20
·  ·  ·  ·  ·  linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters  [4]
 C09K 19/22
·  ·  ·  ·  ·  linked by a chain containing carbon and nitrogen atoms as chain links, e.g. Schiff bases  [4]
 C09K 19/24
·  ·  ·  ·  ·  linked by a chain containing nitrogen-to-nitrogen bonds  [4]
 C09K 19/26
·  ·  ·  ·  ·  ·  Azoxy compounds  [4]
 C09K 19/28
·  ·  ·  ·  ·  linked by a chain containing carbon and sulphur atoms as chain links, e.g. thioesters  [4]
 C09K 19/30
·  ·  ·  ·  containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings  [4]
 C09K 19/32
·  ·  ·  containing condensed ring systems, i.e. fused, bridged or spiro ring systems  [4]
 C09K 19/34
·  ·  ·  containing at least one heterocyclic ring  [4]
 C09K 19/36
·  ·  Steroidal liquid crystal compounds  [4]
 C09K 19/38
·  ·  Polymers, e.g. polyamides  [4]
 C09K 19/40
·  ·  containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulphur, e.g. silicon, metals  [4]
 C09K 19/42
·  ·  Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K 19/06-C09K 19/40  [4]
 C09K 19/44
·  ·  ·  containing compounds with benzene rings directly linked  [4]
 C09K 19/46
·  ·  ·  containing esters  [4]
 C09K 19/48
·  ·  ·  containing Schiff bases  [4]
 C09K 19/50
·  ·  ·  containing steroidal liquid crystal compounds  [4]
 C09K 19/52
·  characterised by components which are not liquid crystals, e.g. additives  [4]
 C09K 19/54
·  ·  Additives having no specific mesophase  [4]
 C09K 19/56
·  ·  ·  Aligning agents  [4]
 C09K 19/58
·  ·  Dopants or charge transfer agents  [4]
 C09K 19/60
·  ·  Pleochroic dyes  [4]
 C09K 21/00
Fireproofing materials (for use in a particular application, see the relevant places, e.g. fireproofing of wood B27K, of polymers C08, of textiles D06M, of paper D21H; fireproof paints C09D 5/18)  [4]
 C09K 21/00 - 
C09K 21/14

Note(s)

In groups C09K 21/02-C09K 21/14, in the absence of an indication to the contrary, materials are classified in the last appropriate place. [4]

 C09K 21/02
·  Inorganic materials  [4]
 C09K 21/04
·  ·  containing phosphorus  [4]
 C09K 21/06
·  Organic materials  [4]
 C09K 21/08
·  ·  containing halogen  [4]
 C09K 21/10
·  ·  containing nitrogen  [4]
 C09K 21/12
·  ·  containing phosphorus  [4]
 C09K 21/14
·  Macromolecular materials  [4]