Non-fibrous material added to the pulp, characterised by its constitution Paper-impregnating material characterised by its constitution

DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR

D21H17/00Non-fibrous material added to the pulp, characterised by its constitution Paper-impregnating material characterised by its constitution

D21H17/005Micro-organisms or enzymes D21H17/01Waste products D21H17/02Material of vegetable origin D21H17/03Non-macromolecular organic compounds D21H17/04Hydrocarbons D21H17/05containing elements other than carbon and hydrogen only D21H17/06Alcohols Phenols Ethers Aldehydes Ketones Acetals Ketals D21H17/07Nitrogen-containing compounds D21H17/08Isocyanates D21H17/09Sulfur-containing compounds D21H17/10Phosphorus-containing compounds D21H17/11Halides D21H17/12Organo-metallic compounds D21H17/13Silicon-containing compounds D21H17/14Carboxylic acids Derivatives thereof D21H17/15Polycarboxylic acids D21H17/16Addition products thereof with hydrocarbons D21H17/17Ketenes D21H17/18forming new compounds in situ D21H17/19by reactions only involving carbon-to-carbon unsaturated bonds D21H17/20Macromolecular organic compounds D21H17/21of natural origin Derivatives thereof D21H17/22Proteins D21H17/23Lignins D21H17/24Polysaccharides D21H17/25Cellulose D21H17/26Ethers thereof D21H17/27Esters thereof D21H17/28Starch D21H17/29cationic D21H17/30Alginic acid or alginates D21H17/31Gums D21H17/32Guar or other polygalactomannan gum D21H17/33Synthetic macromolecular compounds D21H17/34obtained by reactions only involving carbon-to-carbon unsaturated bonds D21H17/35Polyalkenes D21H17/36Polyalkenyalcohols Polyalkenylethers Polyalkenylesters D21H17/37Polymers of unsaturated acids or derivatives thereof D21H17/375Poly(meth)acrylamide D21H17/38containing crosslinkable groups D21H17/39forming ether crosslinkages D21H17/40unsaturated D21H17/41containing ionic groups D21H17/42anionic D21H17/43Carboxyl groups or derivatives thereof D21H17/44cationic D21H17/45Nitrogen-containing groups D21H17/455comprising tertiary amine or being at least partially quaternised D21H17/46obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds D21H17/47Condensation polymers of aldehydes or ketones D21H17/48with phenols D21H17/49with compounds containing hydrogen bound to nitrogen D21H17/50Acyclic compounds D21H17/51Triazines D21H17/52Epoxy resins D21H17/53Polyethers Polyesters D21H17/54obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen D21H17/55Polyamides Polyaminoamides Polyester-amides D21H17/56Polyamines Polyimines Polyester-imides D21H17/57Polyureas Polyurethanes D21H17/58obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur D21H17/59obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon D21H17/60Waxes D21H17/61Bitumen D21H17/62Rosin Derivatives thereof D21H17/63Inorganic compounds D21H17/64Alkaline compounds D21H17/65Acid compounds D21H17/66Salts D21H17/67Water-insoluble compounds D21H17/675Oxides, hydroxides or carbonates D21H17/68siliceous D21H17/69modified D21H17/70forming new compounds in situ D21H17/71Mixtures of material Pulp or paper comprising several different materials not incorporated by special processes D21H17/72of organic material D21H17/73of inorganic material D21H17/74of organic and inorganic material