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
 C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON (manufacture or treatment of artificial threads, fibres, bristles or ribbons D01)
 C08J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G (mechanical aspects B29; layered products, manufacture thereof B32B; treatment of macromolecular material specially adapted to enhance its filling properties in mortars, concrete, artificial stone or the like C04B 16/04, C04B 18/20, C04B 20/00; treatment of textiles D06)  [2]
 C08J

Note(s)

  1. This subclass covers processes, not covered by subclasses C08B-C08H, for treating polymers. [4]
  2. In this subclass, in the absence of an indication to the contrary, an invention is classified in the last appropriate place. [2]
 C08J 3/00
Processes of treating or compounding macromolecular substances  [2]
 C08J 3/02
·  Making solutions, dispersions or latices by other methods than by solution, emulsion or suspension polymerisation techniques  [2]
 C08J 3/04
·  ·  from solid polymer  [2]
 C08J 3/06
·  ·  ·  in inorganic liquids  [2]
 C08J 3/08
·  ·  ·  in organic liquids  [2]
 C08J 3/10
·  ·  from a polymer solution  [2]
 C08J 3/12
·  Powdering or granulating  [2]
 C08J 3/14
·  ·  by precipitation from solutions  [2]
 C08J 3/16
·  ·  by coagulating dispersions  [2]
 C08J 3/18
·  Plasticising macromolecular compounds (plasticisers C08K)  [2]
 C08J 3/20
·  Compounding polymers with additives, e.g. colouring  [2]
 C08J 3/22
·  ·  using masterbatch techniques  [2]
 C08J 3/24
·  Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C 35/00; crosslinking agents C08K)  [2]
 C08J 3/26
·  ·  of latex  [2]
 C08J 3/28
·  Treatment by wave energy or particle radiation  [2]
 C08J 5/00
Manufacture of articles or shaped materials containing macromolecular substances (shaping of foodstuffs A23P; mechanical features, see the relevant classes, e.g. B29)  [2]
 C08J 5/02
·  Direct processing of dispersions, e.g. latex, to articles  [2]
 C08J 5/04
·  Reinforcing macromolecular compounds with loose or coherent fibrous material (after-treatment of threads during manufacture D01F)  [2]
 C08J 5/06
·  ·  using pretreated fibrous materials  [2]
 C08J 5/08
·  ·  ·  glass fibres  [2]
 C08J 5/10
·  ·  characterised by the additives used in the polymer mixture  [2]
 C08J 5/12
·  Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives  [2]
 C08J 5/14
·  Manufacture of abrasive or friction articles or materials  [2]
 C08J 5/16
·  Manufacture of articles or materials having reduced friction  [2]
 C08J 5/18
·  Manufacture of films or sheets  [2]
 C08J 5/20
·  Manufacture of shaped structures of ion-exchange resins  [2]
 C08J 5/22
·  ·  Films, membranes or diaphragms  [2]
 C08J 5/24
·  Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs  [2]
 C08J 7/00
Chemical treatment or coating of shaped articles made of macromolecular substances (coating with metallic material C23C; electrolytic deposition of metals C25)  [2]
 C08J 7/02
·  with solvents, e.g. swelling agents  [2]
 C08J 7/04
·  Coating  [2]
 C08J 7/06
·  ·  with compositions not containing macromolecular substances  [2]
 C08J 7/08
( transferred to B29C 71/02, covered by C08J 7/00 )
 C08J 7/10
( transferred to B29C 71/04, covered by C08J 7/00 )
 C08J 7/12
·  Chemical modification  [2]
 C08J 7/14
·  ·  with acids, their salts or anhydrides  [2]
 C08J 7/16
·  ·  with polymerisable compounds  [2]
 C08J 7/18
·  ·  ·  using wave energy or particle radiation  [2]
 C08J 9/00
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof (mechanical aspects of shaping of plastics or substances in a plastic state for the production of porous or cellular articles B29C; foamed polymeric products of isocyanates or isothiocyanates characterised by the monomers or catalysts used C08G 18/00)  [2]
 C08J 9/02
·  using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules  [2]
 C08J 9/04
·  using blowing gases generated by a previously added blowing agent  [2]
 C08J 9/06
·  ·  by a chemical blowing agent  [2]
 C08J 9/08
·  ·  ·  developing carbon dioxide  [2]
 C08J 9/10
·  ·  ·  developing nitrogen  [2]
 C08J 9/12
·  ·  by a physical blowing agent  [2]
 C08J 9/14
·  ·  ·  organic  [2]
 C08J 9/16
·  Making or treating expandable particles  [2]
 C08J 9/18
·  ·  by impregnating polymer particles with the blowing agent  [2]
 C08J 9/20
·  ·  by suspension polymerisation in the presence of the blowing agent  [2]
 C08J 9/22
·  ·  After-treatment of expandable particles; Pre-expansion of expandable particles; Forming foamed products, e.g. using a binder  [2]
 C08J 9/24
·  by surface fusion and bonding of particles to form voids, e.g. sintering (of expandable particles C08J 9/22)  [2]
 C08J 9/26
·  by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out  [2]
 C08J 9/28
·  by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum  [2]
 C08J 9/30
·  by mixing gases into liquid compositions or plastisols, e.g. frothing with air  [2]
 C08J 9/32
·  from compositions containing micro-balloons, e.g. syntactic foams (making micro-balloons B01J 13/02)  [2]
 C08J 9/34
·  Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core  [2]
 C08J 9/36
·  After-treatment  [2]
 C08J 9/38
·  ·  Destruction of cell membranes  [2]
 C08J 9/40
·  ·  Impregnation  [2]
 C08J 9/42
·  ·  ·  with macromolecular compounds  [2]
 C08J 11/00
Recovery or working-up of waste materials (mechanical treatments B29; polymerisation processes involving purification or recycling of waste polymers or their depolymerisation products C08B, C08C, C08F, C08G, C08H)  [2]
 C08J 11/02
·  of solvents, plasticisers or unreacted monomers  [2]
 C08J 11/04
·  of polymers  [2]
 C08J 11/06
·  ·  without chemical reactions  [4]
 C08J 11/08
·  ·  ·  using selective solvents for polymer components (working-up tar by extraction with selective solvents C10C 1/18; working-up pitch, asphalt, bitumen by selective extraction C10C 3/08)  [4]
 C08J 11/10
·  ·  by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation (depolymerisation to the original monomer C07)  [4]
 C08J 11/12
·  ·  ·  by dry-heat treatment only (destructive distillation of carbonaceous materials for production of gas, coke, tar or similar matters C10B)  [4]
 C08J 11/14
·  ·  ·  by treatment with steam or water  [4]
 C08J 11/16
·  ·  ·  by treatment with inorganic material (C08J 11/14 takes precedence)  [4]
 C08J 11/18
·  ·  ·  by treatment with organic material  [4]
 C08J 11/20
·  ·  ·  ·  by treatment with hydrocarbons or halogenated hydrocarbons  [4]
 C08J 11/22
·  ·  ·  ·  by treatment with organic oxygen-containing compounds  [4]
 C08J 11/24
·  ·  ·  ·  ·  containing hydroxyl groups  [4]
 C08J 11/26
·  ·  ·  ·  ·  containing carboxylic acid groups, their anhydrides or esters  [4]
 C08J 11/28
·  ·  ·  ·  by treatment with organic compounds containing nitrogen, sulphur or phosphorus  [4]