| IPC 6 English version | C08-C08B03718 |
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SECTION C | – CHEMISTRY; METALLURGY |
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ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON (manufacture or treatment of artificial threads, fibres, bristles or ribbons D 01) |
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POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C 07 H; fermentation or enzyme-using processes C 12 P 19/00; sugar industry C 13; production of cellulose D 21) |
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Preparation |
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1/ | 00 | Preparatory treatment of cellulose for making derivatives thereof |
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1/ | 02 | . | Rendering cellulose suitable for esterification |
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1/ | 04 | . . | for the preparation of cellulose nitrate |
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1/ | 06 | . | Rendering cellulose suitable for etherification |
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1/ | 08 | . | Alkali cellulose |
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1/ | 10 | . . | Apparatus for the preparation of alkali cellulose |
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1/ | 12 | . . . | Steeping devices |
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1/ | 14 | . . . | Ripening devices |
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3/ | 00 | Preparation of cellulose esters of organic acids |
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3/ | 02 | . | Catalysts used for the esterification |
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3/ | 04 | . | Cellulose formate |
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3/ | 06 | . | Cellulose acetate |
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3/ | 08 | . | of monobasic organic acids with three or more carbon atoms |
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3/ | 10 | . . | with five or more carbon atoms |
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3/ | 12 | . | of polybasic organic acids |
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3/ | 14 | . | in which the organic acid residue contains substituents, e.g. NH2, Cl |
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3/ | 16 | . | Preparation of mixed organic cellulose esters |
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3/ | 18 | . . | Aceto-butyrates |
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3/ | 20 | . | Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D 06 M 13/00) |
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3/ | 22 | . | Post-esterification treatments, including purification |
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3/ | 24 | . . | Hydrolysis or ripening |
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3/ | 26 | . . | Isolation of the cellulose ester |
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3/ | 28 | . . . | by precipitation |
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3/ | 30 | . . | Stabilisation (by addition of stabilisers C 08 K) |
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5/ | 00 | Preparation of cellulose esters of inorganic acids |
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5/ | 02 | . | Cellulose nitrate |
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5/ | 04 | . . | Post-esterification treatments, including purification |
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5/ | 06 | . . . | Isolation of the cellulose nitrate |
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5/ | 08 | . . . | Stabilisation (by addition of stabilisers C 08 K) |
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5/ | 10 | . . . | Reducing the viscosity |
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5/ | 12 | . . . | Replacing the water by organic liquids |
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5/ | 14 | . | Cellulose sulfate |
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7/ | 00 | Preparation of cellulose esters of both organic and inorganic acids |
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9/ | 00 | Cellulose xanthate; Viscose |
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9/ | 02 | . | Sulfidisers; Dissolvers |
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9/ | 04 | . | Continuous processes |
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9/ | 06 | . | Single-stage processes |
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11/ | 00 | Preparation of cellulose ethers |
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11/ | 02 | . | Alkyl or cycloalkyl ethers |
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11/ | 04 | . . | with substituted hydrocarbon radicals |
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11/ | 06 | . . . | with halogen-substituted hydrocarbon radicals |
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11/ | 08 | . . . | with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof |
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11/ | 10 | . . . | substituted with acid radicals |
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11/ | 12 | . . . . | substituted with carboxylic radicals |
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11/ | 14 | . . . | with nitrogen-containing groups |
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11/ | 145 | . . . . | with basic nitrogen, e.g. aminoalkyl ethers [2] |
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11/ | 15 | . . . . | with carbamoyl groups [2] |
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11/ | 155 | . . . . | with cyano groups, e.g. cyanoalkyl ethers [2] |
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11/ | 16 | . | Aryl or aralkyl ethers |
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11/ | 18 | . . | with substituted hydrocarbon radicals |
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11/ | 187 | . | with olefinic unsaturated groups [2] |
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11/ | 193 | . | Mixed ethers, i.e. ethers with two or more different etherifying groups [2] |
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11/ | 20 | . | Post-etherification treatments, including purification |
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11/ | 22 | . . | Isolation |
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13/ | 00 | Preparation of cellulose ether-esters |
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13/ | 02 | . | Cellulose ether xanthates |
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15/ | 00 | Preparation of other cellulose derivatives or modified cellulose |
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15/ | 02 | . | Oxycellulose; Hydrocellulose; Cellulose hydrate |
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15/ | 04 | . . | Carboxycellulose, e.g. prepared by oxidation with nitrogen dioxide |
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15/ | 05 | . | Derivatives containing elements other than carbon, hydrogen, oxygen, halogen, or sulfur (esters of phosphorus acids C 08 B 5/00) [2] |
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15/ | 06 | . . | containing nitrogen [2] |
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15/ | 08 | . | Fractionation of cellulose, e.g. separation of cellulose crystallites [2] |
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15/ | 10 | . | Crosslinking of cellulose [2] |
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16/ | 00 | Regeneration of cellulose [2] |
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17/ | 00 | Apparatus for esterification or etherification of cellulose |
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17/ | 02 | . | for making organic esters of cellulose |
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17/ | 04 | . | for making cellulose nitrate |
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17/ | 06 | . | for making cellulose ethers |
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30/ | 00 | Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin [4] |
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30/ | 02 | . | Preparatory treatment, e.g. crushing of raw materials (machines for preliminary washing A 23 N) [4] |
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30/ | 04 | . | Extraction or purification [4] |
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30/ | 06 | . | Drying; Forming [4] |
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30/ | 08 | . | Concentration of starch suspensions [4] |
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30/ | 10 | . | Working-up residues from the starch extraction, including pressing water from the starch-extracted material [4] |
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30/ | 12 | . | Degraded or non-chemically modified starch; Bleaching of starch (preparation of chemical derivatives of starch C 08 B 31/00) [4] |
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30/ | 14 | . . | Cold water dispersible or pregelatinised starch [4] |
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30/ | 16 | . . | Apparatus therefor [4] |
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30/ | 18 | . . | Dextrin [4] |
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30/ | 20 | . | Amylose or amylopectin (chemical derivatives thereof C 08 B 33/00, C 08 B 35/00) [4] |
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31/ | 00 | Preparation of chemical derivatives of starch (chemical derivatives of amylose C 08 B 33/00; chemical derivatives of amylopectin C 08 B 35/00) |
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31/ | 02 | . | Esters [2] |
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31/ | 04 | . . | of organic acids [2] |
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31/ | 06 | . . | of inorganic acids [2] |
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31/ | 08 | . | Ethers [2] |
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31/ | 10 | . . | Alkyl or cycloalkyl ethers [2] |
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31/ | 12 | . . | having alkyl or cycloalkyl radicals substituted by hetero atoms [2] |
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31/ | 14 | . . | Aryl or aralkyl ethers [2] |
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31/ | 16 | . | Ether-esters [2] |
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31/ | 18 | . | Oxidised starch [2] |
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33/ | 00 | Preparation of chemical derivatives of amylose [2] |
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33/ | 02 | . | Esters [2] |
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33/ | 04 | . | Ethers [2] |
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33/ | 06 | . | Ether-esters [2] |
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33/ | 08 | . | Oxidised amylose [2] |
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35/ | 00 | Preparation of chemical derivatives of amylopectin [2] |
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35/ | 02 | . | Esters [2] |
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35/ | 04 | . | Ethers [2] |
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35/ | 06 | . | Ether-esters [2] |
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35/ | 08 | . | Oxidised amylopectin [2] |
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37/ | 00 | Preparation of polysaccharides not provided for in groups C 08 B 1/00 to C 08 B 35/00; Derivatives thereof (cellulose D 21) |
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37/ | 02 | . | Dextran; Derivatives thereof [2] |
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37/ | 04 | . | Alginic acid; Derivatives thereof (foodstuff preparations A 23 L 1/05) [2] |
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37/ | 06 | . | Pectin; Derivatives thereof [2] |
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37/ | 08 | . | Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof [2] |
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37/ | 10 | . | Heparin; Derivatives thereof [2] |
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37/ | 12 | . | Agar-agar; Derivatives thereof [2] |
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37/ | 14 | . | Hemicellulose; Derivatives thereof [2] |
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37/ | 16 | . | Cyclodextrin; Derivatives thereof [2] |
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37/ | 18 | . | Reserve carbohydrates, e.g. glycogen, inulin, laminarin; Derivatives thereof [4] |
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