IPC Classification
- All sections
- B - Performing operationstransporting
- B27K - Processes, apparatus or selection of substances for impregnating, staining, dyeing or bleaching of wood, or for treating of wood with permeant liquids, not otherwise provided forchemical or physical treatment of cork, cane, reed, straw or similar materials
| B27K 1/00 | Dampening wood |
| B27K 1/02 | Apparatus |
| B27K 3/00 | Impregnating wood, e.g. for protection |
| B27K 3/02 | ProcessesApparatus |
| B27K 3/04 | Impregnating in open tanks |
| B27K 3/06 | Sap stream methods |
| B27K 3/08 | Impregnating by pressure |
| B27K 3/10 | Apparatus |
| B27K 3/12 | Impregnating by coating the surface of the wood with an impregnating paste |
| B27K 3/14 | Bandage methods |
| B27K 3/15 | Impregnating involving polymerisation |
| B27K 3/16 | Inorganic impregnating agents |
| B27K 3/18 | Compounds of alkaline earth metals |
| B27K 3/20 | Compounds of alkali metals or ammonium |
| B27K 3/22 | Compounds of zinc or copper |
| B27K 3/24 | Compounds of mercury |
| B27K 3/26 | Compounds of iron, aluminium, or chromium |
| B27K 3/28 | Compounds of arsenic or antimony |
| B27K 3/30 | Compounds of fluorine |
| B27K 3/32 | Mixtures of different inorganic impregnating agents |
| B27K 3/34 | Organic impregnating agents |
| B27K 3/36 | Aliphatic compounds |
| B27K 3/38 | Aromatic compounds |
| B27K 3/40 | Aromatic compounds halogenated |
| B27K 3/42 | Aromatic compounds nitrated, or nitrated and halogenated |
| B27K 3/44 | TarMineral oil |
| B27K 3/46 | Coal tar |
| B27K 3/48 | Mineral oil |
| B27K 3/50 | Mixtures of different organic impregnating agents |
| B27K 3/52 | Impregnating agents containing mixtures of inorganic and organic compounds |
| B27K 5/00 | Staining or dyeing woodBleaching woodTreating of wood not provided for in groups or |
| B27K 5/02 | Staining or dyeing woodBleaching wood |
| B27K 5/04 | Combined bleaching or impregnating and drying of wood |
| B27K 5/06 | Softening or hardening wood |
| B27K 7/00 | Chemical or physical treatment of cork |
| B27K 9/00 | Chemical or physical treatment of reed, straw, or similar material |