IPC Classification

Class code (prefix) Descriptions Number of results
C08B 1/00 Preparatory treatment of cellulose for making derivatives thereof
C08B 1/02 Rendering cellulose suitable for esterification
C08B 1/04 Rendering cellulose suitable for esterification for the preparation of cellulose nitrate
C08B 1/06 Rendering cellulose suitable for etherification
C08B 1/08 Alkali cellulose
C08B 1/10 Apparatus for the preparation of alkali cellulose
C08B 1/12 Steeping devices
C08B 1/14 Ripening devices
C08B 3/00 Preparation of cellulose esters of organic acids
C08B 3/02 Catalysts used for the esterification
C08B 3/04 Cellulose formate
C08B 3/06 Cellulose acetate
C08B 3/08 Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms
C08B 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
C08B 3/12 Preparation of cellulose esters of organic acids of polybasic organic acids
C08B 3/14 Preparation of cellulose esters of organic acids in which the organic acid residue contains substituents, e.g. NH2, Cl
C08B 3/16 Preparation of mixed organic cellulose esters
C08B 3/18 Aceto-butyrates
C08B 3/20 Esterification with maintenance of the fibrous structure of the cellulose
C08B 3/22 Post-esterification treatments, including purification
C08B 3/24 Hydrolysis or ripening
C08B 3/26 Isolation of the cellulose ester
C08B 3/28 Isolation of the cellulose ester by precipitation
C08B 3/30 Stabilisation
C08B 5/00 Preparation of cellulose esters of inorganic acids
C08B 5/02 Cellulose nitrate
C08B 5/04 Post-esterification treatments, including purification
C08B 5/06 Isolation of the cellulose nitrate
C08B 5/08 Stabilisation
C08B 5/10 Reducing the viscosity
C08B 5/12 Replacing the water by organic liquids
C08B 5/14 Cellulose sulfate
C08B 7/00 Preparation of cellulose esters of both organic and inorganic acids
C08B 9/00 Preparation of cellulose xanthate or viscose
C08B 9/02 Sulfidisers; Dissolvers
C08B 9/04 Continuous processes
C08B 9/06 Single-stage processes
C08B 11/00 Preparation of cellulose ethers
C08B 11/02 Alkyl or cycloalkyl ethers
C08B 11/04 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
C08B 11/06 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with halogen-substituted hydrocarbon radicals
C08B 11/08 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
C08B 11/10 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
C08B 11/12 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals
C08B 11/14 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups
C08B 11/15 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups with carbamoyl groups
C08B 11/16 Aryl or aralkyl ethers
C08B 11/18 Aryl or aralkyl ethers with substituted hydrocarbon radicals
C08B 11/20 Post-etherification treatments, including purification
C08B 11/22 Isolation
C08B 11/145 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups with basic nitrogen, e.g. aminoalkyl ethers
C08B 11/155 Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups with cyano groups, e.g. cyanoalkyl ethers
C08B 11/187 Preparation of cellulose ethers with olefinic unsaturated groups
C08B 11/193 Mixed ethers, i.e. ethers with two or more different etherifying groups
C08B 13/00 Preparation of cellulose ether-esters
C08B 13/02 Cellulose ether xanthates
C08B 15/00 Preparation of other cellulose derivatives or modified cellulose
C08B 15/02 Oxycellulose; Hydrocellulose; Cellulose hydrate
C08B 15/04 Carboxycellulose, e.g. prepared by oxidation with nitrogen dioxide
C08B 15/05 Derivatives containing elements other than carbon, hydrogen, oxygen, halogen, or sulfur
C08B 15/06 Derivatives containing elements other than carbon, hydrogen, oxygen, halogen, or sulfur containing nitrogen
C08B 15/08 Fractionation of cellulose, e.g. separation of cellulose crystallites
C08B 15/10 Crosslinking of cellulose
C08B 16/00 Regeneration of cellulose
C08B 17/00 Apparatus for esterification or etherification of cellulose
C08B 17/02 Apparatus for esterification or etherification of cellulose for making organic esters of cellulose
C08B 17/04 Apparatus for esterification or etherification of cellulose for making cellulose nitrate
C08B 17/06 Apparatus for esterification or etherification of cellulose for making cellulose ethers
C08B 30/00 Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
C08B 30/02 Preparatory treatment, e.g. crushing of raw materials
C08B 30/04 Extraction or purification
C08B 30/06 Drying; Forming
C08B 30/08 Concentration of starch suspensions
C08B 30/10 Working-up residues from the starch extraction, including pressing water from the starch-extracted material
C08B 30/12 Degraded or non-chemically modified starch; Bleaching of starch
C08B 30/14 Cold water dispersible or pregelatinised starch
C08B 30/16 Apparatus therefor
C08B 30/18 Dextrin
C08B 30/20 Amylose or amylopectin
C08B 31/00 Preparation of chemical derivatives of starch
C08B 31/02 Esters
C08B 31/04 Esters of organic acids
C08B 31/06 Esters of inorganic acids
C08B 31/08 Ethers
C08B 31/10 Alkyl or cycloalkyl ethers
C08B 31/12 Ethers having alkyl or cycloalkyl radicals substituted by hetero atoms
C08B 31/14 Aryl or aralkyl ethers
C08B 31/16 Ether-esters
C08B 31/18 Oxidised starch
C08B 33/00 Preparation of chemical derivatives of amylose
C08B 33/02 Esters
C08B 33/04 Ethers
C08B 33/06 Ether-esters
C08B 33/08 Oxidised amylose
C08B 35/00 Preparation of chemical derivatives of amylopectin
C08B 35/02 Esters
C08B 35/04 Ethers
C08B 35/06 Ether-esters
C08B 35/08 Oxidised amylopectin
C08B 37/00 Preparation of polysaccharides not provided for in groups ; Derivatives thereof
C08B 37/02 Dextran; Derivatives thereof
C08B 37/04 Alginic acid; Derivatives thereof
C08B 37/06 Pectin; Derivatives thereof
C08B 37/08 Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
C08B 37/10 Heparin; Derivatives thereof
C08B 37/12 Agar-agar; Derivatives thereof
C08B 37/14 Hemicellulose; Derivatives thereof
C08B 37/16 Cyclodextrin; Derivatives thereof
C08B 37/18 Reserve carbohydrates, e.g. glycogen, inulin, laminarin; Derivatives thereof