WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

C08B　POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C07H; fermentation or enzyme-using processes C12P 19/00; sugar industry C13; production of cellulose D21)

C08B 1/00 Preparatory treatment of cellulose for making derivatives thereof, [N. e.g. pre-treatment, pre-soaking, activation]

C08B 1/003 ・{Preparation of cellulose solutions, i.e. dopes, with different possible solvents, e.g. ionic liquids (solutions used in the manufacture of monocomponent artificial filaments or cellulose or derivatives thereof D01F 2/02)}

C08B 1/006 ・{Preparation of cuprammonium cellulose solutions}

C08B 1/02 ・Rendering cellulose suitable for esterification {(esterification per se, C08B 3/00, C08B 5/00, C08B 7/00 or C08B 9/00)}

C08B 1/04 ・・for the preparation of cellulose nitrate

C08B 1/06 ・Rendering cellulose suitable for etherification {(etherification per se C08B 11/00)}

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 {(rendering cellulose suitable for esterification C08B 1/02)}

C08B 3/02 ・Catalysts used for the esterification

C08B 3/04 ・Cellulose formate

C08B 3/06 ・Cellulose acetate, [N : e.g. mono-acetate, di-acetate or tri-acetate]

C08B 3/08 ・of monobasic organic acids with 3 or more carbon atoms, {e.g. propionate or butyrate}

C08B 3/10 ・・with five or more carbon-atoms, {e.g. valerate}

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, {e.g. cellulose aceto-formate or cellulose aceto-propionate}

C08B 3/18 ・・Aceto-butyrates

C08B 3/20 ・Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles 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 C08K)

C08B 5/00 Preparation of cellulose esters of inorganic acids, {e.g. phosphates (rendering cellulose suitable for esterification C08B 1/02)}

C08B 5/02 ・Cellulose nitrate, {i.e. nitrocellulose (rendering cellulose suitable for the preparation of cellulose nitrate C08B 1/04)}

C08B 5/04 ・・Post-esterification treatments, {e.g. densification of powders}, including purification

C08B 5/06 ・・・Isolation of the cellulose nitrate

C08B 5/08 ・・・Stabilisation (by addition of stabilisers C08K); {Post-treatment, e.g. phlegmatisation}

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 {(rendering cellulose suitable for esterification C08B 1/02)}

C08B 9/00 Cellulose xanthate; Viscose {(formation of films C08J 5/18; formation of fibres D01F; rendering cellulose suitable for esterification C08B 1/02)}

C08B 9/02 ・Sulfidisers; Dissolvers

C08B 9/04 ・Continuous processes

C08B 9/06 ・Single-stage processes

C08B 11/00 Preparation of cellulose ethers {(rendering cellulose suitable for etherification C08B 1/06)}

C08B 11/02 ・Alkyl or cycloalkyl ethers

C08B 11/04 ・・with substituted hydrocarbon radicals

C08B 11/06 ・・・with halogen-substituted hydrocarbon radials

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, {e.g. carboxymethylcellulose (CMC)}

C08B 11/14 ・・・with nitrogen-containing groups

C08B 11/145 ・・・・with basic nitrogen, e.g. aminoalkyl ethers

C08B 11/15 ・・・・with carbamoyl groups, {i.e. -CO-NH2}

C08B 11/155 ・・・・with cyano groups, e.g. cyanoalkyl ethers

C08B 11/16 ・Aryl or aralkyl ethers

C08B 11/18 ・・with substituted hydrocarbon radicals

C08B 11/187 ・with olefinic unsaturated groups

C08B 11/193 ・Mixed ethers, i.e. ethers with two or more different etherifying groups

C08B 11/20 ・Post-etherification treatments of chemical or physical type, {e.g. mixed etherification in two steps}, 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, {e.g. complexes}

C08B 15/005 ・{Crosslinking of cellulose derivatives}

C08B 15/02 ・Oxy-cellulose; Hydrocellulose; Cellulosehydrate [N : e.g. microcrystalline cellulose]

C08B 15/04 ・・Carboxycellulose, e.g. prepared by oxidation with nitrogen dioxide

C08B 15/05 ・Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur (esters or phosphorous acids C08B 5/00)

C08B 15/06 ・・containing nitrogen, {e.g. carbamates}

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 ・for making organic esters of cellulose

C08B 17/04 ・for making cellulose nitrate

C08B 17/06 ・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 {or steeping process}(machines for preliminary washing A23N)]

C08B 30/04 ・Extraction or purification

C08B 30/042 ・・from cereals or grains

C08B 30/044 ・・・from corn or maize

C08B 30/046 ・・・from wheat

C08B 30/048 ・・from potatoes

C08B 30/06 ・Drying; Forming

C08B 30/08 ・Concentration of starch suspensions

C08B 30/10 ・Working-up residues from the starch extraction, {e.g. potato peel or steeping water}, including pressing water from the starch-extracted material

C08B 30/12 ・Degraded, {destructured} or non-chemically modified starch {e.g. mechanically, enzymatically or by irradiation; Bleaching of starch (preparation of chemical derivatives of starch C08B 31/00)}

C08B 30/14 ・・Cold water dispersible or pregelatinised starch

C08B 30/16 ・・Apparatus therefor

C08B 30/18 ・・Dextrin, {e.g. yellow canari, white dextrin, amylodextrin or maltodextrin; Methods of depolymerisation, e.g. by irradiation or mechanically}

C08B 30/20 ・Amylose or amylopectin (chemical derivatives thereof C08B 33/00, C08B 35/00)

C08B 31/00 Preparation of derivatives of starch (derivatives of amylose C08B 33/00; derivatives of amylopectin C08B 35/00)

C08B 31/003 ・{Crosslinking of starch}

C08B 31/006 ・・{Crosslinking of derivatives of starch}

C08B 31/02 ・Esters

C08B 31/04 ・・of organic acids, {e.g. alkenyl-succinated starch}

C08B 31/06 ・・of inorganic acids

C08B 31/063 ・・・{Starch sulfates}

C08B 31/066 ・・・{Starch phosphates, e.g. phosphorylated starch}

C08B 31/08 ・Ethers

C08B 31/10 ・・Alkyl or cycloalkyl ethers

C08B 31/12 ・・having alkyl or cycloalkyl radicals substituted by heteroatoms, {e.g. hydroxyalkyl or carboxyalkyl starch}

C08B 31/125 ・・・{having a substitutent containing at least one nitrogen atom, e.g. cationic starch}

C08B 31/14 ・・Aryl or aralkyl ethers

C08B 31/16 ・Ether-esters

C08B 31/18 ・Oxidised starch

C08B 31/185 ・・{Derivatives of oxidised starch, e.g. crosslinked oxidised starch}

C08B 33/00 Preparation of 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 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 C08B 1/00 to C08B 35/00; Derivatives thereof (cellulose D21; {microbiological processes C12P})

C08B 37/0003 ・{General processes for their isolation or fractionation, e.g. purification or extraction from biomass}

C08B 37/0006 ・{Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid}

C08B 37/0009 ・・{alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof}

C08B 37/0012 ・・・{Cyclodextrin (CD), e.g. cycle with 6 units (alpha), with 7 units (beta) and with 8 units (gamma), large-ring cyclodextrin or cycloamylose with 9 units or more; Derivatives thereof}

C08B 37/0015 ・・・・{Inclusion compounds, i.e. host-guest compounds, e.g. polyrotaxanes}

C08B 37/0018 ・・・{Pullulan, i.e. (alpha-1,4)(alpha-1,6)-D-glucan; Derivatives thereof}

C08B 37/0021 ・・・{Dextran, i.e. (alpha-1,4)-D-glucan; Derivatives thereof, e.g. Sephadex, i.e. crosslinked dextran}

C08B 37/0024 ・・{beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof}

C08B 37/0027 ・・・{2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof}

C08B 37/003 ・・・・{Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof}

C08B 37/0033 ・・・{Xanthan, i.e. D-glucose, D-mannose and D-glucuronic acid units, saubstituted with acetate and pyruvate, with a main chain of (beta-1,4)-D-glucose units; Derivatives thereof}

C08B 37/0036 ・・{Galactans; Derivatives thereof}

C08B 37/0039 ・・・{Agar; Agarose, i.e. D-galactose, 3,6-anhydro-D-galactose, methylated, sulfated, e.g. from the red algae Gelidium and Gracilaria; Agaropectin; Derivatives thereof, e.g. Sepharose, i.e.crosslinked agarose}

C08B 37/0042 ・・・{Carragenan or carragen, i.e. D-galactose and 3,6-anhydro-D-galactose, both partially sulfated, e.g. from red algae Chondrus crispus or Gigantia stellata; kappa-Carragenan; iota-Carragenan; lambda-Carragenan; Derivatives thereof}

C08B 37/0045 ・・{alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked

C08B 37/0048 ・・・{Processes of extraction from organic materials}

C08B 37/0051 ・・{beta-D-Fructofuranans, e.g. beta-2,6-D-fructofuranan, i.e. levan; Derivatives thereof}

C08B 37/0054 ・・・[N : Inulin, i.e. beta-2,1-D-fructofuranan; Derivatives thereof]

C08B 37/0057 ・・{beta-D-Xylans, i.e. xylosaccharide, e.g. arabinoxylan, arabinofuronan, pentosans; (beta-1,3)(beta-1,4)-D-Xylans, e.g. rhodymenans; Hemicellulose; Derivatives thereof}

C08B 37/006 ・{Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof}

C08B 37/0063 ・・{Glycosaminoglycans or mucopolysaccharides, e.g. keratan sulfate; Derivatives thereof, e.g. fucoidan}

C08B 37/0066 ・・・{Isolation or extraction of proteoglycans from organs}

C08B 37/0069 ・・・{Chondroitin-4-sulfate, i.e. chondroitin sulfate A ; Dermatan sulfate, i.e. chondroitin sulfate B or beta-heparin ; Chondroitin-6-sulfate, i.e. chondroitin sulfate C; Derivatives thereof}

C08B 37/0072 ・・・{Hyaluronic acid, i.e. HA or hyaluronan; Derivatives thereof, e.g. crosslinked hyaluronic acid (hylan) or hyaluronates}

C08B 37/0075 ・・・{Heparin; Heparan sulfate; Derivatives thereof, e.g. heparosan; Purification or extraction methods thereof}

C08B 37/0078 ・・・・{Degradation products}

C08B 37/0081 ・・・・{Reaction with amino acids, peptides, or proteins}

C08B 37/0084 ・・{Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates}

C08B 37/0087 ・・{Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e.
　　L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from
Acacia Senegal or Acacia Seyal; Derivatives thereof}

C08B 37/009 ・・・{Konjac gum or konjac mannan, i.e. beta-D-glucose and beta-D-mannose units linked by 1,4 bonds, e.g. from Amorphophallus species; Derivatives thereof}

C08B 37/0093 ・・・{Locust bean gum, i.e. carob bean gum, with (beta-1,4)-D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from the seeds of carob tree or Ceratonia siliqua; Derivatives thereof}

C08B 37/0096 ・・・{Guar, guar gum, guar flour, guaran, i.e. (beta-1,4) linked D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from Cyamopsis Tetragonolobus; Derivatives thereof}

C08B 37/12 ・Agar-agar; Derivatives thereof (not used)

C08B 37/125 ・・{Other polysaccharides of algae such as carragenan}(not used)

C08B 37/14 ・Hemicellulose; Derivatives thereof (not used)

C08B 37/143 ・・{composed by pentose units, e.g. xylose, xylan, pentosans, arabinose}(not used)

C08B 37/146 ・・{composed by gluco and/or galactomannans, for example guar gum, locust bean gum}(not used)

C08B 37/18 ・Reserve carbohydrates, e.g. glycogen, inulin, laminarin; Derivatives thereof (not used)