|  | C |
SECTION C — CHEMISTRY AND METALLURGY

|  | C |
Note(s) Definitions for Section C: Alkali metals: Li, Na, K, Rb, Cs, Fr Alkaline earth metals: Ca, Sr, Ba, Ra Lanthanides: elements with atomic numbers 57 to 71 inclusive Rare earths: Sc, Y, Lanthanides Actinides: elements with atomic numbers 89 to 103 inclusive Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W Halogens: F, Cl, Br, I, At Noble gases: He, Ne, Ar, Kr, Xe, Rn Platinum group: Os, Ir, Pt, Ru, Rh, Pd Noble metals: Ag, Au, Platinum group Light metals: alkali metals, alkaline earth metals, Be, Al, Mg Heavy metals: metals other than light metals Iron group: Fe, Co, Ni Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens Metals: elements other than non-metals Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

CHEMISTRY

|  | C08 |
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON (production of artificial threads, fibres, bristles or ribbons Fulltext... Hierarchy... Expanded...D01)

|  | C08B |
POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages Fulltext... Hierarchy... Expanded...C07H; fermentation or enzyme-using processes Fulltext... Hierarchy... Expanded...C12P 19/00; production of starch, sugar, or like carbohydrates Fulltext... Hierarchy... Expanded...C13; production of cellulose Fulltext... Hierarchy... Expanded...D21)

|  | C08B 1/00 - C08B 37/00 |
Preparation

|  | C08B 1/00 |
Preparatory treatment of cellulose for making derivatives thereof

|  | C08B 1/02 |
· | Rendering cellulose suitable for esterification

|  | C08B 1/04 |
· · | 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 |
· | of monobasic organic acids with three or more carbon atoms

|  | C08B 3/10 |
· · | with five or more carbon atoms

|  | C08B 3/12 |
· | of polybasic organic acids

|  | C08B 3/14 |
· | 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 (surface esterification of textiles Fulltext... Hierarchy... Expanded...D06M 13/00)

|  | 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 |
· · · | by precipitation

|  | C08B 3/30 |
· · | Stabilising (by addition of stabilisers Fulltext... Hierarchy... Expanded...C08K)

|  | C08B 3/32 |
· | Recovery of waste materials

|  | 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 (by addition of stabilisers Fulltext... Hierarchy... Expanded...C08K)

|  | C08B 5/10 |
· · · | Reducing the viscosity

|  | C08B 5/12 |
· · · | Replacing the water by organic liquids

|  | C08B 5/14 |
· | cellulose sulphate

|  | C08B 5/16 |
· | Recovery of waste materials

|  | C08B 7/00 |
Preparation of cellulose esters of both organic and inorganic acids

|  | C08B 9/00 |
Cellulose xanthate; Viscose

|  | C08B 9/02 |
· | Sulphidisers; Dissolvers

|  | C08B 9/04 |
· | Continuous processes

|  | C08B 9/06 |
· | Single-stage processes

|  | C08B 9/08 |
· | Recovery of waste materials

|  | C08B 11/00 |
Preparation of cellulose ethers

|  | C08B 11/02 |
· | alkyl or cycloalkyl ethers

|  | C08B 11/04 |
· · | with substituted hydrocarbon radicals

|  | C08B 11/06 |
· · · | with halogen-substituted hydrocarbon radicals

|  | C08B 11/08 |
· · · | with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof

|  | C08B 11/10 |
· · · | substituted with acid radicals

|  | C08B 11/12 |
· · · · | substituted with carboxylic radicals

|  | C08B 11/14 |
· · · | with nitrogen-containing groups

|  | C08B 11/145 |
· · · · | with basic nitrogen, e.g. aminoalkyl ethers [2]

|  | C08B 11/15 |
· · · · | with carbamoyl groups [2]

|  | C08B 11/155 |
· · · · | with cyano groups, e.g. cyanoalkyl ethers [2]

|  | C08B 11/16 |
· | aryl or aralkyl ethers

|  | C08B 11/18 |
· · | with substituted hydrocarbon radicals

|  | C08B 11/187 |
· | with olefinic unsaturated groups [2]

|  | C08B 11/193 |
· | Mixed ethers, i.e. ethers with two or more different etherifying groups [2]

|  | C08B 11/20 |
· | Post-etherification treatments, including purification

|  | C08B 11/22 |
· · | Isolation

|  | 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 sulphur (esters of phosphorus acids Fulltext... Hierarchy... Expanded...C08B 5/00) [2]

|  | C08B 15/06 |
· · | containing nitrogen [2]

|  | C08B 15/08 |
· | Fractionation of cellulose, e.g. separation of cellulose crystallites [2]

|  | C08B 15/10 |
· | Crosslinking of cellulose [2]

|  | C08B 16/00 |
Regeneration of cellulose [2]

|  | C08B 17/00 |
Apparatus for esterification or etherification of cellulose

|  | C08B 17/02 |
· | for making organic esters of cellulose

|  | C08B 17/04 |
· | for making cellulose nitrate

|  | C08B 17/06 |
· | for making cellulose ethers

|  | C08B 31/00 |
Preparation of derivatives of starch (derivatives of amylose Fulltext... Hierarchy... Expanded...C08B 33/00; derivatives of amylopectin Fulltext... Hierarchy... Expanded...C08B 35/00) [2]

|  | C08B 31/02 |
· | Esters [2]

|  | C08B 31/04 |
· · | of organic acids [2]

|  | C08B 31/06 |
· · | of inorganic acids [2]

|  | C08B 31/08 |
· | Ethers [2]

|  | C08B 31/10 |
· · | Alkyl or cycloalkyl ethers [2]

|  | C08B 31/12 |
· · | having alkyl or cycloalkyl radicals substituted by hetero atoms [2]

|  | C08B 31/14 |
· · | Aryl or aralkyl ethers [2]

|  | C08B 31/16 |
· | Ether-esters [2]

|  | C08B 31/18 |
· | Oxidised starch [2]

|  | C08B 33/00 |
Preparation of derivatives of amylose [2]

|  | C08B 33/02 |
· | Esters [2]

|  | C08B 33/04 |
· | Ethers [2]

|  | C08B 33/06 |
· | Ether-esters [2]

|  | C08B 33/08 |
· | Oxidised amylose [2]

|  | C08B 35/00 |
Preparation of derivatives of amylopectin [2]

|  | C08B 35/02 |
· | Esters [2]

|  | C08B 35/04 |
· | Ethers [2]

|  | C08B 35/06 |
· | Ether-esters [2]

|  | C08B 35/08 |
· | Oxidised amylopectin [2]

|  | C08B 37/00 |
Preparation of polysaccharides not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08B 1/00-C08B 35/00; Derivatives thereof (starch, dextrin, or similar carbohydrates Fulltext... Hierarchy... Expanded...C13L; cellulose Fulltext... Hierarchy... Expanded...D21) [2]

|  | C08B 37/02 |
· | Dextran; Derivatives thereof [2]

|  | C08B 37/04 |
· | Alginic acid; Derivatives thereof (foodstuff preparations Fulltext... Hierarchy... Expanded...A23L 1/04) [2]

|  | C08B 37/06 |
· | Pectin; Derivatives thereof [2]

|  | C08B 37/08 |
· | Chitin; Chondroitin sulphate; Hyaluronic acid; Derivatives thereof [2]

|  | C08B 37/10 |
· | Heparin; Derivatives thereof [2]

|  | C08B 37/12 |
· | Agar-agar; Derivatives thereof [2]

|  | C08B 37/14 |
· | Hemicellulose; Derivatives thereof [2]

|  | C08B 37/16 |
· | Cyclodextrin; Derivatives thereof [2]