| 3/00 | Processes of treating or compounding macromolecular substances | 
| 3/02 | Processes of treating or compounding macromolecular substances Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques | 
| 3/03 | Processes of treating or compounding macromolecular substances Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media | 
| 3/05 | Processes of treating or compounding macromolecular substances Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers | 
| 3/07 | Processes of treating or compounding macromolecular substances Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions | 
| 3/075 | Processes of treating or compounding macromolecular substances Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media Macromolecular gels | 
| 3/09 | Processes of treating or compounding macromolecular substances Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids | 
| 3/11 | Processes of treating or compounding macromolecular substances Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers | 
| 3/12 | Processes of treating or compounding macromolecular substances Powdering or granulating | 
| 3/14 | Processes of treating or compounding macromolecular substances Powdering or granulating by precipitation from solutions | 
| 3/16 | Processes of treating or compounding macromolecular substances Powdering or granulating by coagulating dispersions | 
| 3/18 | Processes of treating or compounding macromolecular substances Plasticising macromolecular compounds (plasticisers C08K) | 
| 3/20 | Processes of treating or compounding macromolecular substances Compounding polymers with additives, e.g. colouring | 
| 3/205 | Processes of treating or compounding macromolecular substances Compounding polymers with additives, e.g. colouring in the presence of a liquid phase | 
| 3/21 | Processes of treating or compounding macromolecular substances Compounding polymers with additives, e.g. colouring in the presence of a liquid phase the polymer being premixed with a liquid phase | 
| 3/215 | Processes of treating or compounding macromolecular substances Compounding polymers with additives, e.g. colouring in the presence of a liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase | 
| 3/22 | Processes of treating or compounding macromolecular substances Compounding polymers with additives, e.g. colouring using masterbatch techniques | 
| 3/24 | Processes of treating or compounding macromolecular substances Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C 35/00; crosslinking agents C08K) | 
| 3/26 | Processes of treating or compounding macromolecular substances Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C 35/00; crosslinking agents C08K) of latex | 
| 3/28 | Processes of treating or compounding macromolecular substances Treatment by wave energy or particle radiation |