|  | C |
SECTION C — CHEMISTRY; METALLURGY

|  | C |
Note(s) In section C, the definitions of groups of chemical elements are as follows: 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 The following notes are meant to assist in the use of this part of the classification scheme. They must not be read as modifying in any way the elaborations. Section C covers: pure chemistry, which covers inorganic compounds, organic compounds, macromolecular compounds, and their methods of preparation; applied chemistry, which covers compositions containing the above compounds, such as: glass, ceramics, fertilisers, plastics compositions, paints, products of the petroleum industry. It also covers certain compositions on account of their having particular properties rendering them suitable for certain purposes, as in the case of explosives, dyestuffs, adhesives, lubricants, and detergents; certain marginal industries, such as the manufacture of coke and of solid or gaseous fuels, the production and refining of oils, fats and waxes, the fermentation industry (e.g., brewing and wine-making), the sugar industry; certain operations or treatments, which are either purely mechanical, e.g., the mechanical treatment of leather and skins, or partly mechanical, e.g., the treatment of water or the prevention of corrosion in general; metallurgy, ferrous or non-ferrous alloys. In the case of operations, treatments, products or articles having both a chemical and a non-chemical part or aspect, the general rule is that the chemical part or aspect is covered by section C. In some of these cases, the chemical part or aspect brings with it a non-chemical one, even though purely mechanical, because this latter aspect either is essential to the operation or treatment or constitutes an important element thereof. It has seemed, in fact, more logical not to dissociate the different parts or aspects of a coherent whole. This is the case for applied chemistry and for the industries, operations and treatments mentioned in Notes (1)(c), (d) and (e). For example, furnaces peculiar to the manufacture of glass are covered by class Fulltext... Hierarchy... Expanded...C03 and not by class Fulltext... Hierarchy... Expanded...F27. There are, however, some exceptions in which the mechanical (or non-chemical) aspect carries with it the chemical aspect, for example: Certain extractive processes, in subclass Fulltext... Hierarchy... Expanded...A61K; The chemical purification of air, in subclass Fulltext... Hierarchy... Expanded...A61L; Chemical methods of fire-fighting, in subclass Fulltext... Hierarchy... Expanded...A62D; Chemical processes and apparatus, in class Fulltext... Hierarchy... Expanded...B01; Impregnation of wood, in subclass Fulltext... Hierarchy... Expanded...B27K; Chemical methods of analysis or testing, in subclass Fulltext... Hierarchy... Expanded...G01N; Photographic materials and processes, in class Fulltext... Hierarchy... Expanded...G03, and, generally, the chemical treatment of textiles and the production of cellulose or paper, in section D. In still other cases, the pure chemical aspect is covered by section C and the applied chemical aspect by another section, such as A, B or F, e.g., the use of a substance or composition for: treatment of plants or animals, covered by subclass Fulltext... Hierarchy... Expanded...A01N; foodstuffs, covered by class Fulltext... Hierarchy... Expanded...A23; ammunition or explosives, covered by class Fulltext... Hierarchy... Expanded...F42. When the chemical and mechanical aspects are so closely interlocked that a neat and simple division is not possible, or when certain mechanical processes follow as a natural or logical continuation of a chemical treatment, section C may cover, in addition to the chemical aspect, a part only of the mechanical aspect, e.g., after-treatment of artificial stone, covered by class Fulltext... Hierarchy... Expanded...C04. In this latter case, a note or a reference is usually given to make the position clear, even if sometimes the division is rather arbitrary.

CHEMISTRY

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

|  | C08 |
Note(s) Processes using enzymes or micro-organisms in order to: liberate, separate or purify a pre-existing compound or composition, or to treat textiles or clean solid surfaces of materials are further classified in subclass Fulltext... Hierarchy... Expanded...C12S. [5]

|  | C08L |
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (pesticides, herbicides Fulltext... Hierarchy... Expanded...A01N; pharmaceuticals, cosmetics Fulltext... Hierarchy... Expanded...A61K; explosives Fulltext... Hierarchy... Expanded...C06B; paints, inks, varnishes, dyes, polishes, adhesives Fulltext... Hierarchy... Expanded...C09; lubricants Fulltext... Hierarchy... Expanded...C10M; detergents Fulltext... Hierarchy... Expanded...C11D; artificial filaments or fibres Fulltext... Hierarchy... Expanded...D01F; textile treating compositions Fulltext... Hierarchy... Expanded...D06) [2]

|  | C08L |
Note(s) In this subclass, the following term is used with the meaning indicated: "rubber" includes: natural or conjugated diene rubbers; rubber in general (for a specific rubber, other than a natural rubber or a conjugated diene rubber, see the group provided for compositions of such macromolecular compounds). [2] In this subclass: compositions are classified according to the mutual proportions by weight of only the macromolecular constituents; [2] compositions are classified according to the macromolecular constituent or constituents present in the highest proportion; if all these constituents are present in equal proportions the composition is classified according to each of these constituents. [2] In this subclass, it is desirable to add the indexing codes relating to additional macromolecular constituents of the composition. The indexing codes, which are chosen from the groups of this subclass, have the same numbers as the classification symbols, but a colon is used instead of the oblique stroke, and should be linked. [2] This subclass constitutes an indexing scheme associated with subclass Fulltext... Hierarchy... Expanded...C08J, relating to the materials used. The indexing codes should be unlinked. [5] Attention is drawn to Chapter IV of the Guide which sets the rules concerning the application and presentation of different types of indexing code. [6]

|  | C08L |
Subclass index
Compositions of polysaccharides or of their derivatives | 1/00 - 5/00
Compositions of rubbers or of their derivatives | 7/00 - 21/00
Compositions of macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers | 23/00 - 57/00
Compositions of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers | 59/00 - 87/00
Compositions of natural macromolecular compounds or of derivatives thereof | 89/00 - 99/00
Compositions of unspecified macromolecular compounds | 101/00

|  | C08L 1/00 - C08L 5/00 |
Compositions of polysaccharides or of their derivatives [2]

|  | C08L 1/00 |
Compositions of cellulose, modified cellulose, or cellulose derivatives [2]

|  | C08L 1/02 |
· | Cellulose; Modified cellulose [2]

|  | C08L 1/04 |
· · | Oxycellulose; Hydrocellulose [2]

|  | C08L 1/06 |
· · | Cellulose hydrate [2]

|  | C08L 1/08 |
· | Cellulose derivatives [2]

|  | C08L 1/10 |
· · | Esters of organic acids [2]

|  | C08L 1/12 |
· · · | Cellulose acetate [2]

|  | C08L 1/14 |
· · · | Mixed esters, e.g. cellulose acetate-butyrate [2]

|  | C08L 1/16 |
· · | Esters of inorganic acids [2]

|  | C08L 1/18 |
· · · | Cellulose nitrate [2]

|  | C08L 1/20 |
· · | Esters of both organic acids and inorganic acids [2]

|  | C08L 1/22 |
· · | Cellulose xanthate [2]

|  | C08L 1/24 |
· · · | Viscose [2]

|  | C08L 1/26 |
· · | Cellulose ethers [2]

|  | C08L 1/28 |
· · · | Alkyl ethers [2]

|  | C08L 1/30 |
· · · | Aryl ethers; Aralkyl ethers [2]

|  | C08L 1/32 |
· · | Cellulose ether-esters [2]

|  | C08L 3/00 |
Compositions of starch, amylose or amylopectin or of their derivatives or degradation products [2]

|  | C08L 3/02 |
· | Starch; Degradation products thereof, e.g. dextrin [2]

|  | C08L 3/04 |
· | Starch derivatives [2]

|  | C08L 3/06 |
· · | Esters [2]

|  | C08L 3/08 |
· · | Ethers [2]

|  | C08L 3/10 |
· · | Oxidised starch [2]

|  | C08L 3/12 |
· | Amylose; Amylopectin; Degradation products thereof [2]

|  | C08L 3/14 |
· | Amylose derivatives; Amylopectin derivatives [2]

|  | C08L 3/16 |
· · | Esters [2]

|  | C08L 3/18 |
· · | Ethers [2]

|  | C08L 3/20 |
· · | Oxidised amylose; Oxidised amylopectin [2]

|  | C08L 5/00 |
Compositions of polysaccharides or of their derivatives not provided for in group Fulltext... Hierarchy... Expanded...C08L 1/00 or Fulltext... Hierarchy... Expanded...C08L 3/00 [2]

|  | C08L 5/02 |
· | Dextran; Derivatives thereof [2]

|  | C08L 5/04 |
· | Alginic acid; Derivatives thereof [2]

|  | C08L 5/06 |
· | Pectin; Derivatives thereof [2]

|  | C08L 5/08 |
· | Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof [2]

|  | C08L 5/10 |
· | Heparin; Derivatives thereof [2]

|  | C08L 5/12 |
· | Agar-agar; Derivatives thereof [2]

|  | C08L 5/14 |
· | Hemicellulose; Derivatives thereof [2]

|  | C08L 5/16 |
· | Cyclodextrin; Derivatives thereof [2]

|  | C08L 7/00 - C08L 21/00 |
Compositions of rubbers or of their derivatives [2]

|  | C08L 7/00 |
Compositions of natural rubber [2]

|  | C08L 7/02 |
· | Latex [2]

|  | C08L 9/00 |
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons [2]

|  | C08L 9/02 |
· | Copolymers with acrylonitrile [2]

|  | C08L 9/04 |
· · | Latex [2]

|  | C08L 9/06 |
· | Copolymers with styrene [2]

|  | C08L 9/08 |
· · | Latex [2]

|  | C08L 9/10 |
· | Latex (Fulltext... Hierarchy... Expanded...C08L 9/04, Fulltext... Hierarchy... Expanded...C08L 9/08 take precedence) [2]

|  | C08L 11/00 |
Compositions of homopolymers or copolymers of chloroprene [2]

|  | C08L 11/02 |
· | Latex [2]

|  | C08L 13/00 |
Compositions of rubbers containing carboxyl groups [2]

|  | C08L 13/02 |
· | Latex [2]

|  | C08L 15/00 |
Compositions of rubber derivatives (Fulltext... Hierarchy... Expanded...C08L 11/00, Fulltext... Hierarchy... Expanded...C08L 13/00 take precedence) [4]

|  | C08L 15/02 |
· | Rubber derivatives containing halogen [2]

|  | C08L 17/00 |
Compositions of reclaimed rubber [2]

|  | C08L 19/00 |
Compositions of rubbers not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 7/00-C08L 17/00 [2]

|  | C08L 19/02 |
· | Latex [2]

|  | C08L 21/00 |
Compositions of unspecified rubbers [2]

|  | C08L 21/02 |
· | Latex [2]

|  | C08L 23/00 - C08L 57/00 |
Compositions of macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds [2]

|  | C08L 23/00 - C08L 49/00 |
Note(s) Groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 23/00-C08L 49/00 are to be interpreted in accordance with Notes (2), (3), and (4) (e) following the title of subclass Fulltext... Hierarchy... Expanded...C08F. [2]

|  | C08L 23/00 |
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers [2]

|  | C08L 23/02 |
· | not modified by chemical after-treatment [2]

|  | C08L 23/04 |
· · | Homopolymers or copolymers of ethene [2]

|  | C08L 23/06 |
· · · | Polyethene [2]

|  | C08L 23/08 |
· · · | Copolymers of ethene (Fulltext... Hierarchy... Expanded...C08L 23/16 takes precedence) [2]

|  | C08L 23/10 |
· · | Homopolymers or copolymers of propene [2]

|  | C08L 23/12 |
· · · | Polypropene [2]

|  | C08L 23/14 |
· · · | Copolymers of propene (Fulltext... Hierarchy... Expanded...C08L 23/16 takes precedence) [2]

|  | C08L 23/16 |
· · | Ethene-propene or ethene-propene-diene copolymers [2]

|  | C08L 23/18 |
· · | Homopolymers or copolymers of hydrocarbons having four or more carbon atoms [2]

|  | C08L 23/20 |
· · · | having four to nine carbon atoms [2]

|  | C08L 23/22 |
· · · · | Copolymers of isobutene; Butyl rubber [2]

|  | C08L 23/24 |
· · · | having ten or more carbon atoms [2]

|  | C08L 23/26 |
· | modified by chemical after-treatment [2]

|  | C08L 23/28 |
· · | by reaction with halogens or halogen-containing compounds (Fulltext... Hierarchy... Expanded...C08L 23/32 takes precedence) [2]

|  | C08L 23/30 |
· · | by oxidation [2]

|  | C08L 23/32 |
· · | by reaction with phosphorus- or sulfur-containing compounds [2]

|  | C08L 23/34 |
· · · | by chlorosulfonation [2]

|  | C08L 23/36 |
· · | by reaction with nitrogen-containing compounds, e.g. by nitration [2]

|  | C08L 25/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers [2]

|  | C08L 25/02 |
· | Homopolymers or copolymers of hydrocarbons [2]

|  | C08L 25/04 |
· · | Homopolymers or copolymers of styrene [2]

|  | C08L 25/06 |
· · · | Polystyrene [2]

|  | C08L 25/08 |
· · · | Copolymers of styrene (Fulltext... Hierarchy... Expanded...C08L 29/08, Fulltext... Hierarchy... Expanded...C08L 35/06, Fulltext... Hierarchy... Expanded...C08L 55/02 take precedence) [2]

|  | C08L 25/10 |
· · · · | with conjugated dienes [2]

|  | C08L 25/12 |
· · · · | with unsaturated nitriles [2]

|  | C08L 25/14 |
· · · · | with unsaturated esters [2]

|  | C08L 25/16 |
· · | Homopolymers or copolymers of alkyl-substituted styrenes [2]

|  | C08L 25/18 |
· | Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen [2]

|  | C08L 27/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers [2]

|  | C08L 27/02 |
· | not modified by chemical after-treatment [2]

|  | C08L 27/04 |
· · | containing chlorine atoms [2]

|  | C08L 27/06 |
· · · | Homopolymers or copolymers of vinyl chloride [2]

|  | C08L 27/08 |
· · · | Homopolymers or copolymers of vinylidene chloride [2]

|  | C08L 27/10 |
· · | containing bromine or iodine atoms [2]

|  | C08L 27/12 |
· · | containing fluorine atoms [2]

|  | C08L 27/14 |
· · · | Homopolymers or copolymers of vinyl fluoride [2]

|  | C08L 27/16 |
· · · | Homopolymers or copolymers of vinylidene fluoride [2]

|  | C08L 27/18 |
· · · | Homopolymers or copolymers of tetrafluoroethene [2]

|  | C08L 27/20 |
· · · | Homopolymers or copolymers of hexafluoropropene [2]

|  | C08L 27/22 |
· | modified by chemical after-treatment [2]

|  | C08L 27/24 |
· · | halogenated [2]

|  | C08L 29/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers [2]

|  | C08L 29/02 |
· | Homopolymers or copolymers of unsaturated alcohols (Fulltext... Hierarchy... Expanded...C08L 29/14 takes precedence) [2]

|  | C08L 29/04 |
· · | Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids [2]

|  | C08L 29/06 |
· · | Copolymers of allyl alcohol [2]

|  | C08L 29/08 |
· · · | with vinyl aromatic monomers [2]

|  | C08L 29/10 |
· | Homopolymers or copolymers of unsaturated ethers (Fulltext... Hierarchy... Expanded...C08L 35/08 takes precedence) [2]

|  | C08L 29/12 |
· | Homopolymers or copolymers of unsaturated ketones [2]

|  | C08L 29/14 |
· | Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols [2]

|  | C08L 31/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid (of hydrolysed polymers Fulltext... Hierarchy... Expanded...C08L 29/00); Compositions of derivatives of such polymers [2]

|  | C08L 31/02 |
· | Homopolymers or copolymers of esters of monocarboxylic acids [2]

|  | C08L 31/04 |
· · | Homopolymers or copolymers of vinyl acetate [2]

|  | C08L 31/06 |
· | Homopolymers or copolymers of esters of polycarboxylic acids [2]

|  | C08L 31/08 |
· · | of phthalic acid [2]

|  | C08L 33/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Compositions of derivatives of such polymers [2]

|  | C08L 33/02 |
· | Homopolymers or copolymers of acids; Metal or ammonium salts thereof [2]

|  | C08L 33/04 |
· | Homopolymers or copolymers of esters [2]

|  | C08L 33/06 |
· · | of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical [2]

|  | C08L 33/08 |
· · · | Homopolymers or copolymers of acrylic acid esters [2]

|  | C08L 33/10 |
· · · | Homopolymers or copolymers of methacrylic acid esters [2]

|  | C08L 33/12 |
· · · · | Homopolymers or copolymers of methyl methacrylate [2]

|  | C08L 33/14 |
· · | of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen [2]

|  | C08L 33/16 |
· · · | Homopolymers or copolymers of esters containing halogen atoms [2]

|  | C08L 33/18 |
· | Homopolymers or copolymers of nitriles [2]

|  | C08L 33/20 |
· · | Homopolymers or copolymers of acrylonitrile (Fulltext... Hierarchy... Expanded...C08L 55/02 takes precedence) [2]

|  | C08L 33/22 |
· · | Homopolymers or copolymers of nitriles containing four or more carbon atoms [2]

|  | C08L 33/24 |
· | Homopolymers or copolymers of amides or imides [2]

|  | C08L 33/26 |
· · | Homopolymers or copolymers of acrylamide or methacrylamide [2]

|  | C08L 35/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers [2]

|  | C08L 35/02 |
· | Homopolymers or copolymers of esters (Fulltext... Hierarchy... Expanded...C08L 35/06, Fulltext... Hierarchy... Expanded...C08L 35/08 take precedence) [2]

|  | C08L 35/04 |
· | Homopolymers or copolymers of nitriles (Fulltext... Hierarchy... Expanded...C08L 35/06, Fulltext... Hierarchy... Expanded...C08L 35/08 take precedence) [2]

|  | C08L 35/06 |
· | Copolymers with vinyl aromatic monomers [2]

|  | C08L 35/08 |
· | Copolymers with vinyl ethers [2]

|  | C08L 37/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen (of cyclic esters of polyfunctional acids Fulltext... Hierarchy... Expanded...C08L 31/00; of cyclic anhydrides of unsaturated acids Fulltext... Hierarchy... Expanded...C08L 35/00); Compositions of derivatives of such polymers [2]

|  | C08L 39/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers [2]

|  | C08L 39/02 |
· | Homopolymers or copolymers of vinylamine [2]

|  | C08L 39/04 |
· | Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member [2]

|  | C08L 39/06 |
· · | Homopolymers or copolymers of N-vinyl-pyrrolidones [2]

|  | C08L 39/08 |
· · | Homopolymers or copolymers of vinyl-pyridine [2]

|  | C08L 41/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur; Compositions of derivatives of such polymers [2]

|  | C08L 43/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Compositions of derivatives of such polymers (of metal salts, e.g. phenolates, alcoholates, see the parent compounds) [2]

|  | C08L 43/02 |
· | Homopolymers or copolymers of monomers containing phosphorus [2]

|  | C08L 43/04 |
· | Homopolymers or copolymers of monomers containing silicon [2]

|  | C08L 45/00 |
Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers (of cyclic esters of polyfunctional acids Fulltext... Hierarchy... Expanded...C08L 31/00; of cyclic anhydrides or imides Fulltext... Hierarchy... Expanded...C08L 35/00) [2]

|  | C08L 45/02 |
· | of coumarone-indene polymers [2]

|  | C08L 47/00 |
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Compositions of derivatives of such polymers (Fulltext... Hierarchy... Expanded...C08L 45/00 takes precedence; of conjugated diene rubbers Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 9/00-C08L 21/00) [2]

|  | C08L 49/00 |
Compositions of homopolymers or copolymers of compounds having one or more carbon-to-carbon triple bonds; Compositions of derivatives of such polymers [2]

|  | C08L 51/00 |
Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds (for ABS polymers Fulltext... Hierarchy... Expanded...C08L 55/02); Compositions of derivatives of such polymers [2]

|  | C08L 51/02 |
· | grafted on to polysaccharides [2]

|  | C08L 51/04 |
· | grafted on to rubbers [2]

|  | C08L 51/06 |
· | grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond [2]

|  | C08L 51/08 |
· | grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds [2]

|  | C08L 51/10 |
· | grafted on to inorganic materials [3]

|  | C08L 53/00 |
Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers [2]

|  | C08L 53/02 |
· | of vinyl aromatic monomers and conjugated dienes [2]

|  | C08L 55/00 |
Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 23/00-C08L 53/00 [2]

|  | C08L 55/02 |
· | ABS polymers [2]

|  | C08L 55/04 |
· | Polyadducts obtained by the diene synthesis [2]

|  | C08L 57/00 |
Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds [2]

|  | C08L 57/02 |
· | Copolymers of mineral oil hydrocarbons [2]

|  | C08L 57/04 |
· | Copolymers in which only the monomer in minority is defined [2]

|  | C08L 57/06 |
· | Homopolymers or copolymers containing elements other than carbon and hydrogen [2]

|  | C08L 57/08 |
· · | containing halogen atoms [2]

|  | C08L 57/10 |
· · | containing oxygen atoms [2]

|  | C08L 57/12 |
· · | containing nitrogen atoms [2]

|  | C08L 59/00 - C08L 87/00 |
Compositions of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds [2]

|  | C08L 59/00 |
Compositions of polyacetals; Compositions of derivatives of polyacetals [2]

|  | C08L 59/02 |
· | Polyacetals containing polyoxymethylene sequences only [2]

|  | C08L 59/04 |
· | Copolyoxymethylenes [3]

|  | C08L 61/00 |
Compositions of condensation polymers of aldehydes or ketones (with polyalcohols Fulltext... Hierarchy... Expanded...C08L 59/00; with polynitriles Fulltext... Hierarchy... Expanded...C08L 77/00); Compositions of derivatives of such polymers [2]

|  | C08L 61/02 |
· | Condensation polymers of aldehydes or ketones only [2]

|  | C08L 61/04 |
· | Condensation polymers of aldehydes or ketones with phenols only [2]

|  | C08L 61/06 |
· · | of aldehydes with phenols [2]

|  | C08L 61/08 |
· · · | with monohydric phenols [2]

|  | C08L 61/10 |
· · · · | Phenol-formaldehyde condensates [2]

|  | C08L 61/12 |
· · · | with polyhydric phenols [2]

|  | C08L 61/14 |
· · · | Modified phenol-aldehyde condensates [2]

|  | C08L 61/16 |
· · | of ketones with phenols [2]

|  | C08L 61/18 |
· | Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or their halogen derivatives only [2]

|  | C08L 61/20 |
· | Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols Fulltext... Hierarchy... Expanded...C08L 61/04) [2]

|  | C08L 61/22 |
· · | of aldehydes with acyclic or carbocyclic compounds [2]

|  | C08L 61/24 |
· · · | with urea or thiourea [2]

|  | C08L 61/26 |
· · | of aldehydes with heterocyclic compounds [2]

|  | C08L 61/28 |
· · · | with melamine [2]

|  | C08L 61/30 |
· · | of aldehydes with heterocyclic and acyclic or carbocyclic compounds [2]

|  | C08L 61/32 |
· · | Modified amine-aldehyde condensates [2]

|  | C08L 61/34 |
· | Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups Fulltext... Hierarchy... Expanded...C08L 61/04, Fulltext... Hierarchy... Expanded...C08L 61/18, and Fulltext... Hierarchy... Expanded...C08L 61/20 [2]

|  | C08L 63/00 |
Compositions of epoxy resins; Compositions of derivatives of epoxy resins [2]

|  | C08L 63/02 |
· | Polyglycidyl ethers of bis-phenols [2]

|  | C08L 63/04 |
· | Epoxynovolacs [2]

|  | C08L 63/06 |
· | Triglycidylisocyanurates [2]

|  | C08L 63/08 |
· | Epoxidised polymerised polyenes [2]

|  | C08L 63/10 |
· | Epoxy resins modified by unsaturated compounds [2]

|  | C08L 65/00 - C08L 85/00 |
Note(s) In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 65/00-C08L 85/00, in the absence of an indication to the contrary, compositions of macromolecular compounds obtained by reactions forming two different linkages in the main chain are classified only according to the linkage present in excess. [2]

|  | C08L 65/00 |
Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 7/00-C08L 57/00, Fulltext... Hierarchy... Expanded...C08L 61/00 take precedence); Compositions of derivatives of such polymers [2]

|  | C08L 65/02 |
· | Polyphenylenes [2]

|  | C08L 65/04 |
· | Polyxylylenes [2]

|  | C08L 67/00 |
Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain (of polyester-amides Fulltext... Hierarchy... Expanded...C08L 77/12; of polyester-imides Fulltext... Hierarchy... Expanded...C08L 79/08); Compositions of derivatives of such polymers [2]

|  | C08L 67/02 |
· | Polyesters derived from dicarboxylic acids and dihydroxy compounds (Fulltext... Hierarchy... Expanded...C08L 67/06 takes precedence) [2]

|  | C08L 67/03 |
· · | the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings [5]

|  | C08L 67/04 |
· | Polyesters derived from hydroxy carboxylic acids, e.g. lactones (Fulltext... Hierarchy... Expanded...C08L 67/06 takes precedence) [2]

|  | C08L 67/06 |
· | Unsaturated polyesters [2]

|  | C08L 67/07 |
· · | having terminal carbon-to-carbon unsaturated bonds [5]

|  | C08L 67/08 |
· | Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids [2]

|  | C08L 69/00 |
Compositions of polycarbonates; Compositions of derivatives of polycarbonates [2]

|  | C08L 71/00 |
Compositions of polyethers obtained by reactions forming an ether link in the main chain (of polyacetals Fulltext... Hierarchy... Expanded...C08L 59/00; of epoxy resins Fulltext... Hierarchy... Expanded...C08L 63/00; of polythioether-ethers Fulltext... Hierarchy... Expanded...C08L 81/02; of polyethersulfones Fulltext... Hierarchy... Expanded...C08L 81/06); Compositions of derivatives of such polymers [2]

|  | C08L 71/02 |
· | Polyalkylene oxides [2]

|  | C08L 71/03 |
· · | Polyepihalohydrins [5]

|  | C08L 71/08 |
· | Polyethers derived from hydroxy compounds or from their metallic derivatives (Fulltext... Hierarchy... Expanded...C08L 71/02 takes precedence) [5]

|  | C08L 71/10 |
· · | from phenols [5]

|  | C08L 71/12 |
· · · | Polyphenylene oxides [5]

|  | C08L 71/14 |
· · | Furfuryl alcohol polymers [5]

|  | C08L 73/00 |
Compositions of macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 59/00-C08L 71/00; Compositions of derivatives of such polymers [2]

|  | C08L 73/02 |
· | Polyanhydrides [2]

|  | C08L 75/00 |
Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers [2]

|  | C08L 75/02 |
· | Polyureas [2]

|  | C08L 75/04 |
· | Polyurethanes [2]

|  | C08L 75/06 |
· · | from polyesters [2]

|  | C08L 75/08 |
· · | from polyethers [2]

|  | C08L 75/10 |
· · | from polyacetals [2]

|  | C08L 75/12 |
· · | from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group [2]

|  | C08L 75/14 |
· · | Polyurethanes having carbon-to-carbon unsaturated bonds [5]

|  | C08L 75/16 |
· · · | having terminal carbon-to-carbon unsaturated bonds [5]

|  | C08L 77/00 |
Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain (of polyhydrazides Fulltext... Hierarchy... Expanded...C08L 79/06; of polyamide-imides or polyamide acids Fulltext... Hierarchy... Expanded...C08L 79/08); Compositions of derivatives of such polymers [2]

|  | C08L 77/02 |
· | Polyamides derived from omega-amino carboxylic acids or from lactams thereof (Fulltext... Hierarchy... Expanded...C08L 77/10 takes precedence) [2]

|  | C08L 77/04 |
· | Polyamides derived from alpha-amino carboxylic acids (Fulltext... Hierarchy... Expanded...C08L 77/10 takes precedence) [2]

|  | C08L 77/06 |
· | Polyamides derived from polyamines and polycarboxylic acids (Fulltext... Hierarchy... Expanded...C08L 77/10 takes precedence) [2]

|  | C08L 77/08 |
· · | from polyamines and polymerised unsaturated fatty acids [2]

|  | C08L 77/10 |
· | Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids [2]

|  | C08L 77/12 |
· | Polyester-amides [2]

|  | C08L 79/00 |
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 61/00-C08L 77/00 [2]

|  | C08L 79/02 |
· | Polyamines [2]

|  | C08L 79/04 |
· | Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors [2]

|  | C08L 79/06 |
· · | Polyhydrazides; Polytriazoles; Polyamino-triazoles; Polyoxadiazoles [2]

|  | C08L 79/08 |
· · | Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors [2]

|  | C08L 81/00 |
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers [2]

|  | C08L 81/02 |
· | Polythioethers; Polythioether-ethers [2]

|  | C08L 81/04 |
· | Polysulfides [2]

|  | C08L 81/06 |
· | Polysulfones; Polyethersulfones [2]

|  | C08L 81/08 |
· | Polysulfonates [2]

|  | C08L 81/10 |
· | Polysulfonamides; Polysulfonimides [2]

|  | C08L 83/00 |
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Compositions of derivatives of such polymers [2]

|  | C08L 83/02 |
· | Polysilicates [2]

|  | C08L 83/04 |
· | Polysiloxanes [2]

|  | C08L 83/05 |
· · | containing silicon bound to hydrogen [4]

|  | C08L 83/06 |
· · | containing silicon bound to oxygen-containing groups (Fulltext... Hierarchy... Expanded...C08L 83/12 takes precedence) [2]

|  | C08L 83/07 |
· · | containing silicon bound to unsaturated aliphatic groups [4]

|  | C08L 83/08 |
· · | containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen [2]

|  | C08L 83/10 |
· | Block- or graft-copolymers containing polysiloxane sequences (obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane Fulltext... Hierarchy... Expanded...C08L 51/08, Fulltext... Hierarchy... Expanded...C08L 53/00) [2]

|  | C08L 83/12 |
· · | containing polyether sequences [2]

|  | C08L 83/14 |
· | in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms (Fulltext... Hierarchy... Expanded...C08L 83/10 takes precedence) [2]

|  | C08L 83/16 |
· | in which all the silicon atoms are connected by linkages other than oxygen atoms [2]

|  | C08L 85/00 |
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon; Compositions of derivatives of such polymers [2]

|  | C08L 85/02 |
· | containing phosphorus [2]

|  | C08L 85/04 |
· | containing boron [2]

|  | C08L 87/00 |
Compositions of unspecific macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds [2]

|  | C08L 89/00 - C08L 99/00 |
Compositions of natural macromolecular compounds or of derivatives thereof (of polysaccharides Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 1/00-C08L 5/00; of natural rubber Fulltext... Hierarchy... Expanded...C08L 7/00) [2]

|  | C08L 89/00 |
Compositions of proteins; Compositions of derivatives thereof (foodstuff preparations Fulltext... Hierarchy... Expanded...A23J 3/00) [2]

|  | C08L 89/02 |
· | Casein-aldehyde condensates [2]

|  | C08L 89/04 |
· | Products derived from waste materials, e.g. horn, hoof, hair [2]

|  | C08L 89/06 |
· · | derived from leather or skin [2]

|  | C08L 91/00 |
Compositions of oils, fats or waxes; Compositions of derivatives thereof (polishing compositions, ski waxes Fulltext... Hierarchy... Expanded...C09G; soaps, detergent compositions Fulltext... Hierarchy... Expanded...C11D) [2]

|  | C08L 91/02 |
· | Vulcanised oils, e.g. factice [2]

|  | C08L 91/04 |
· | Linoxyn [2]

|  | C08L 91/06 |
· | Waxes [2]

|  | C08L 91/08 |
· · | Mineral wax [2]

|  | C08L 93/00 |
Compositions of natural resins; Compositions of derivatives thereof (polishing compositions Fulltext... Hierarchy... Expanded...C09G) [2]

|  | C08L 93/02 |
· | Shellac (French polish Fulltext... Hierarchy... Expanded...C09F) [2]

|  | C08L 93/04 |
· | Rosin [2]

|  | C08L 95/00 |
Compositions of bituminous materials, e.g. asphalt, tar, pitch [2]

|  | C08L 97/00 |
Compositions of lignin-containing materials [2]

|  | C08L 97/02 |
· | Lignocellulosic material, e.g. wood, straw, bagasse [2]

|  | C08L 99/00 |
Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C08L 89/00-C08L 97/00 [2]

|  | C08L 101/00 |
Compositions of unspecified macromolecular compounds [2]

|  | C08L 101/02 |
· | characterised by the presence of specified groups [2]

|  | C08L 101/04 |
· · | containing halogen atoms [2]

|  | C08L 101/06 |
· · | containing oxygen atoms [2]

|  | C08L 101/08 |
· · · | Carboxyl groups [2]

|  | C08L 101/10 |
· · | containing hydrolysable silane groups [4]

|  | C08L 101/12 |
· | characterised by physical features, e.g. anisotropy, viscosity, electric conductance [6]

|  | C08L 101/14 |
· · | the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels [6]