| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 08/26/1987 | CN86102407A Fuzz fibres slurrying process for solving pollution |
| 08/18/1987 | US4687745 Enhancing strength and brightness stability |
| 08/18/1987 | US4687741 Isolated from fungal cultures |
| 08/12/1987 | EP0231275A1 Use of ligninolytic enzymes in paper pulp production. |
| 07/15/1987 | EP0228396A1 Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing. |
| 07/14/1987 | US4680088 Process for removing ink particles from paper products |
| 06/16/1987 | CA1222898A1 Process for continuous digestion of finely-divided material |
| 05/26/1987 | US4668339 Process for dry deinking of secondary fiber sources |
| 05/21/1987 | WO1987003023A1 Method of processing waste paper |
| 05/19/1987 | US4666558 Process for newspaper deinking using low-foaming surfactant deinking agent |
| 05/12/1987 | CA1221503A1 Method and apparatus for deinking |
| 04/29/1987 | EP0220001A1 Inhibition of deposition and adherency of adhesive materials contained in waste paper or paper products |
| 04/14/1987 | CA1220490A1 Low-foaming, ph sensitive, alkylamine polyether surface active agents and methods for using |
| 03/04/1987 | EP0211834A1 Aeration installation. |
| 02/17/1987 | US4643800 Methods of decontaminating secondary fiber |
| 02/10/1987 | CA1217608A Manufacture of papers with a latex constituant, and sheets thus made |
| 01/29/1987 | WO1987000564A1 USE OF rLDMTM 1-6 AND OTHER LIGNINOLYTIC ENZYMES |
| 01/29/1987 | WO1987000550A1 Novel enzymes for degradation of lignin |
| 01/28/1987 | EP0209533A1 Process and system for the flocculation substances which can be flocculated in suspensions, especially for cleaning the discharge water of deinking plant. |
| 01/15/1987 | WO1987000220A1 Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing |
| 01/02/1987 | DE3525788A1 Method and arrangement for controlling the addition of chemicals for flocculating flocculable substances in suspensions, especially for purifying the backwater of de-inking installations |
| 12/16/1986 | US4629575 Well drilling and production fluids employing parenchymal cell cellulose |
| 12/10/1986 | CN85104472A Composition and method of deinking of recycled cellulosic material |
| 11/26/1986 | EP0202237A1 A process for manufacturing a liquid absorbing pad, in particular for use in soft hygiene articles and sanitary products. |
| 11/25/1986 | CA1214579A1 Apparatus for removal by flotation of solid particles from liquid |
| 11/04/1986 | US4620926 Flotation apparatus for flotation of fibrous stock suspension recovered from waste paper |
| 10/22/1986 | EP0198737A1 Apparatus for the decontamination of paper pulp |
| 10/21/1986 | US4618400 Wastepaper deinking process |
| 09/17/1986 | EP0194332A1 Process and apparatus for sorting a fibre suspension |
| 08/26/1986 | US4608121 Energy-efficient |
| 08/14/1986 | WO1986004585A1 Process and system for the flocculation substances which can be flocculated in suspensions, especially for cleaning the discharge water of deinking plant |
| 08/12/1986 | US4605773 Low-foaming, pH sensitive, alkylamine polyether surface active agents and methods for using |
| 07/29/1986 | US4602971 Recyclable; to be staipped from release carrier |
| 07/23/1986 | EP0187909A1 Process and apparatus for eliminating impurities from a waste paper suspension |
| 07/08/1986 | US4599240 L/w-calorie bread |
| 07/08/1986 | US4599190 Polyelectrolyte dispersant, nonionic surfactant |
| 06/11/1986 | EP0183863A1 Format paper with a low dust content, process for its manufacture and its use |
| 05/06/1986 | US4586982 Process for the de-inking of printed waste paper |
| 04/29/1986 | US4585551 Papermaking |
| 04/10/1986 | WO1986002116A1 A process for manufacturing a liquid absorbing pad, in particular for use in soft hygiene articles and sanitary products |
| 04/02/1986 | EP0175991A1 Method for producing high-yield paper-making pulp |
| 04/01/1986 | CA1202454A1 Method for recovering pulp from pressure-sensitive carbonless copying paper waste |
| 03/27/1986 | WO1986001843A1 Method of obtaining cellulase deficient strains of white-rot fungi |
| 03/19/1986 | EP0174825A1 Deinkers comprising a non-ionic surfactant and ethylene glycol |
| 03/10/1986 | CN85107075A Process for manufacturing soft hygiene articles and sanitary products |
| 02/26/1986 | EP0172684A1 Dimethyldiallyl ammonium chloride/acrylamide copolymers as deinkers |
| 02/19/1986 | EP0172118A1 Process and apparatus for recycling printed waste paper |
| 02/18/1986 | US4570861 Method of and arrangement for electrostatic separation of paper- and synthetic plastic material-containing mixtures |
| 02/12/1986 | EP0171370A1 Method for the reduction of discolouration and/or tackiness when upgrading waste paper |
| 12/31/1985 | US4561933 Pulping, treating with fatty alcohol and ethylene oxide fatty adduct |
| 12/24/1985 | US4560474 Flotation apparatus for floating fiber suspensions extracted from waste paper |
| 12/04/1985 | EP0163444A1 Composition and method of deinking of recycled cellulosic material |
| 10/30/1985 | EP0159795A1 Process for separating cellulose and hemicellulose |
| 10/22/1985 | US4548674 Process for the regeneration of waste paper |
| 10/22/1985 | US4548673 Method and apparatus for deinking |
| 10/22/1985 | CA1195459A1 Latex binders for fibrous webs |
| 10/15/1985 | US4547263 Method for obtaining useful products from green pseudostem, including papermaking pulp plantain |
| 10/10/1985 | WO1985004432A1 Aeration installation |
| 10/09/1985 | EP0157163A1 Process and apparatus for the flotation of dispersions |
| 10/08/1985 | CA1195049A1 Wet strength resins |
| 09/26/1985 | WO1985004201A1 Process for separating cellulose and hemicellulose |
| 09/12/1985 | WO1985003960A1 Method and device for the flotation of dispersions |
| 05/21/1985 | US4518459 Methods of deinking secondary fibers |
| 04/23/1985 | US4512888 Apparatus for removal by flotation of solid particles from liquid |
| 04/23/1985 | CA1185787A1 Paper making machinery |
| 04/16/1985 | CA1185708A1 Froth flotation apparatus and method |
| 03/13/1985 | EP0134084A1 Well drilling and production fluids employing parenchymal cell cellulose |
| 03/12/1985 | CA1183660A1 Process for the continuous manufacture of paper sheets of fibrous materials and latex |
| 02/27/1985 | EP0133559A1 Process for recovering waste paper |
| 02/19/1985 | CA1182611A1 Process for the de-inking of printed waste paper |
| 02/12/1985 | CA1182469A1 Esters of michael addition homopolymers of acrylic acid |
| 01/31/1985 | WO1985000402A1 Well drilling and production fluids employing parenchymal cell cellulose |
| 12/11/1984 | US4487884 Reacted with a epihalohydrin-wet strength for paper |
| 12/11/1984 | US4487655 Addition of phosphonic acid compounds |
| 12/04/1984 | US4486459 Process for preparing cellulose |
| 11/20/1984 | US4483742 Liquid soaps comprising pine oil and soap-making acid for use in paper-recycling |
| 11/20/1984 | US4483741 Low-foaming, pH sensitive, alkylamine polyether surface active agents and methods for using |
| 10/24/1984 | EP0122769A2 Separation of fibres from vegetable matter |
| 10/24/1984 | EP0122747A2 Apparatus for deinking |
| 10/23/1984 | US4478683 Using peroxidase or laccase and hydrogen peroxide or oxygen to oxidize phenols in waste water |
| 10/02/1984 | CA1175204A1 Process for deinking waste paper |
| 08/22/1984 | EP0116145A1 Process for the discolouration of waste paper |
| 08/21/1984 | CA1172807A1 Waste paper recycling process |
| 07/31/1984 | US4462868 Paper web drying apparatus having a hood with two sections |
| 07/25/1984 | EP0113721A1 Artificial wood from fruit kernels or nut shells; artificial marble |
| 07/24/1984 | US4461648 Method for increasing the accessibility of cellulose in lignocellulosic materials, particularly hardwoods agricultural residues and the like |
| 07/03/1984 | CA1170254A1 Dyes containing imidazolylmethylene groups |
| 05/30/1984 | EP0109900A1 Process for the production of latex-containing papers, and paper sheets thus obtained |
| 05/29/1984 | US4451398 Dyes containing imidazolymethylene groups |
| 05/22/1984 | US4450043 Defibering and treating with a hydrolase to separate unruptured capsules |
| 05/01/1984 | US4445972 Process for the continuous manufacture in an aqueous medium of sheets made of fibrous material and containing latex or similar and/or phenoplasts or aminoplasts, sheets obtained by said process and their possible re-use |
| 04/17/1984 | US4443357 Hydrophobic silica or silicate, compositions containing the same and methods for making and using the same |
| 03/15/1984 | WO1984000970A1 Artificial wood from fruit kernels or nut shells; artificial marble |
| 03/14/1984 | EP0102829A1 Parenchymal cell cellulose and related materials, and a method of producing the same |
| 03/06/1984 | US4435249 Oxygen delignified to produce bleachable pulp |
| 03/06/1984 | CA1163058A1 Method for obtaining superior yields of accessible cellulose and hemicellulose from lignocellulosic materials |
| 01/24/1984 | US4427778 Hydrolysis; compression of hydrolyzate |
| 12/28/1983 | EP0096952A2 Froth flotation apparatus and method |
| 12/13/1983 | US4420368 Latex binders for fibrous webs |
| 11/22/1983 | US4416727 Process for recovering fiber from wet-strength resin coated paper |