| 1/00 | Preparatory treatment of cellulose for making derivatives thereof |
| 1/02 | Preparatory treatment of cellulose for making derivatives thereof Rendering cellulose suitable for esterification |
| 1/04 | Preparatory treatment of cellulose for making derivatives thereof Rendering cellulose suitable for esterification for the preparation of cellulose nitrate |
| 1/06 | Preparatory treatment of cellulose for making derivatives thereof Rendering cellulose suitable for etherification |
| 1/08 | Preparatory treatment of cellulose for making derivatives thereof Alkali cellulose |
| 1/10 | Preparatory treatment of cellulose for making derivatives thereof Alkali cellulose Apparatus for the preparation of alkali cellulose |
| 1/12 | Preparatory treatment of cellulose for making derivatives thereof Alkali cellulose Apparatus for the preparation of alkali cellulose Steeping devices |
| 1/14 | Preparatory treatment of cellulose for making derivatives thereof Alkali cellulose Apparatus for the preparation of alkali cellulose Ripening devices |
| 3/00 | Preparation of cellulose esters of organic acids |
| 3/02 | Preparation of cellulose esters of organic acids Catalysts used for the esterification |
| 3/04 | Preparation of cellulose esters of organic acids Cellulose formate |
| 3/06 | Preparation of cellulose esters of organic acids Cellulose acetate |
| 3/08 | Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms |
| 3/10 | Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms with five or more carbon atoms |
| 3/12 | Preparation of cellulose esters of organic acids of polybasic organic acids |
| 3/14 | Preparation of cellulose esters of organic acids in which the organic acid residue contains substituents, e.g. NH2, Cl |
| 3/16 | Preparation of cellulose esters of organic acids Preparation of mixed organic cellulose esters |
| 3/18 | Preparation of cellulose esters of organic acids Preparation of mixed organic cellulose esters Aceto-butyrates |
| 3/20 | Preparation of cellulose esters of organic acids Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M 13/00) |
| 3/22 | Preparation of cellulose esters of organic acids Post-esterification treatments, including purification |