| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
|---|
| 06/22/1999 | US5914006 Adding alkoxylation product from reaction of c10-22 carboxylic acid and alkylene oxide |
| 06/22/1999 | US5914004 Method of producing pulp for paper manufacture |
| 06/17/1999 | WO1999029821A1 Method for enhancing activity of cellulase in industrial applications by adjusting ionic strength |
| 06/17/1999 | CA2312166A1 Method for enhancing activity of cellulase in industrial applications by adjusting ionic strength |
| 06/16/1999 | EP0921862A1 A process for purification of a fibre suspension |
| 06/16/1999 | CN1219628A Comprehensive preparation method for normal temp. deinking agent for waste paper |
| 06/16/1999 | CN1219627A Method for extracting paper pulp and aluminium foil from waste aluminium foil paper |
| 06/15/1999 | US5912157 Alkaline cellulases |
| 06/09/1999 | EP0920552A1 Method for lowering the level of oxalic acid |
| 06/09/1999 | EP0920551A1 Method of agglomerating stickies in an aqueous slurry of wastepaper |
| 06/03/1999 | WO1999027177A1 Method for deinking and other contaminent removal from wastepaper |
| 06/02/1999 | EP0804505B1 Method and composition for providing repulpable moisture vapor barrier coating for flexible packaging |
| 05/27/1999 | WO1999025847A2 Cellulase produced by actinomycetes and method of producing same |
| 05/27/1999 | WO1999025846A2 Cellulase produced by actinomycetes and method for producing same |
| 05/27/1999 | DE19854324A1 Biological preparation of cellulose fiber material from calcium pectinate containing material |
| 05/27/1999 | CA2309886A1 Cellulase produced by actinomycetes and method of producing same |
| 05/27/1999 | CA2309764A1 Cellulase produced by actinomycetes and method for producing same |
| 05/26/1999 | EP0793747A4 Methods for pulping and deinking |
| 05/26/1999 | EP0644964B1 Waste paper treatment process and recycled paper obtained |
| 05/25/1999 | US5906709 Reducing size of raw materials to provide pumpable material, flowing in thin and turbulent layer while heating and introducing digesting agent to produce cellulose fibers |
| 05/19/1999 | EP0916000A1 Perfected reactor for liquids purification |
| 05/19/1999 | CN1217035A Magnetic deinking of waste paper |
| 05/18/1999 | US5904808 Processes and compositions for repulping wet strength paper and paper products |
| 05/14/1999 | WO1999023117A1 Method for modification of cellulose |
| 05/12/1999 | EP0914517A1 Method and apparatus for bleaching wood pulp, especially containing waste paper |
| 05/11/1999 | US5902581 Having significant activity at low ph and high temperature; useful for bleaching pulp for papermaking, treating feed grains to improve digestibility |
| 05/05/1999 | CN1215773A Improved process for adjusting alkalinity of pulp slurry in broke pulper |
| 05/04/1999 | US5900111 Process for sanitizing post-consumer paper fibers using heat and hydrogen peroxide |
| 04/28/1999 | EP0911443A1 Improved process for adjusting the alkalinity of a pulp slurry in a broke pulper |
| 04/28/1999 | EP0910695A1 Methods for inhibiting organic contaminant deposition in pulp and papermaking systems |
| 04/28/1999 | EP0910475A1 Pulp decontamination apparatus and method of use |
| 04/28/1999 | EP0726880A4 Deinking of recycled pulp |
| 04/28/1999 | CN1215429A Enzyme multimer and process of producing same |
| 04/27/1999 | US5897744 Method for controlling speck defects in recycling paper product |
| 04/24/1999 | CA2251272A1 Improved process for adjusting the alkalinity of a pulp slurry in a broke pulper |
| 04/22/1999 | WO1999019559A1 Polymers as detackification agents for adhesives contained in secondary fiber |
| 04/22/1999 | WO1999002693A3 Microbial swollenin protein; dna sequences encoding such swollenins and method of producing such swollenins |
| 04/22/1999 | WO1998056958A8 Process for the production of xylose from a paper-grade, hardwood pulp |
| 04/21/1999 | EP0712452A4 Improved deinking method using ink agglomeration |
| 04/20/1999 | US5895556 Waste paper treatment process |
| 04/15/1999 | WO1999018285A1 Method for processing straw into pulp and paper product therefrom |
| 04/15/1999 | CA2304575A1 Method for processing straw into pulp and paper product therefrom |
| 04/14/1999 | CN1214091A Process for producing pulp from lignocellulosic plants, and pulp obtained |
| 04/08/1999 | WO1999016960A1 Cellulose treatment and the resulting product |
| 04/08/1999 | WO1999016959A1 Process and device for treating waste paper without biocides, chlorine compounds, hydrogen peroxide and peracetic acid, recycled tissue paper with a total germ number of less than 1000 kbe/g and a surface germ number of less than 20 kbe/dm?2¿ |
| 04/07/1999 | EP0906465A1 Deinking process |
| 04/07/1999 | EP0809731B1 Process for recovering raw materials from a flow of residual or collected materials during paper manufacture and plant therefor |
| 04/06/1999 | US5891304 Use of hydrophilic dispersion polymers for coated broke treatment |
| 04/06/1999 | US5891303 Method for separating wax from waste paper |
| 04/01/1999 | WO1999015278A1 Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 04/01/1999 | DE19742729A1 Verfahren zur Aufbereitung von Altpapier unter Vermeidung von Bioziden und Chlorverbindungen, sowie von Wasserstoffperoxid und Peressigsäure, Einrichtung zur Ausführung dieses Verfahrens sowie Recycling Tissuepapiere mit einer Gesamtkeimzahl kleiner 1000 KBE/g und einer Oberflächenkeimzahl kleiner 20 KBE/dm·2· Process for treating waste paper, avoiding biocides and chlorine compounds, as well as hydrogen peroxide and peracetic acid, means for performing this process and recycling tissue papers with a total bacterial count of less than 1000 CFU / g and a surface germ count of less than 20 CFU / dm · 2 · |
| 03/31/1999 | EP0905306A1 Multicomponent system for modifying, decomposing or bleaching lignin or lignin-containing materials and method of using this system |
| 03/31/1999 | EP0904449A1 Deinking process |
| 03/31/1999 | EP0904448A1 Deinking process |
| 03/31/1999 | EP0813631B1 Method and apparatus for treating filler-containing material such as recycled fibers |
| 03/30/1999 | US5888802 Thermostable xylanase |
| 03/30/1999 | US5888350 Method for repulping and/or decolorizing broke using persulfate/metal mixtures |
| 03/30/1999 | US5888345 Absorbent granular product |
| 03/26/1999 | CA2248530A1 Multicomponent system for modifying, degrading, or bleaching lignin or lignin-containing materials, and processes for its use |
| 03/25/1999 | WO1999014430A1 Floor absorbent granular product |
| 03/25/1999 | WO1999014424A1 Pulp production method and apparatus |
| 03/25/1999 | CA2304027A1 Pulp production method and apparatus |
| 03/25/1999 | CA2291128A1 Floor absorbent granular product |
| 03/24/1999 | CN1212012A Enzyme with galactanase activity |
| 03/23/1999 | US5885819 Genetic engineered hybrid dna encoding xylanase, used for degrading plant cell wall components e.g. in the preparation of animal feeds, in food baking, in papermaking and pulp industry and separation of wheat into starch and gluten |
| 03/23/1999 | US5885419 Adding a blood-related protein, e.g. alblumin, globulin and/or sprayed dried animal cells; antisticking agents; detackifying; adsorbers; desorbers |
| 03/23/1999 | US5885413 Deinking wastepaper containing electrostatic printed ink using branched alcohol alkoxylate surfactant |
| 03/23/1999 | US5885412 Adding a complexing agent and a detergent and a hydroxylamine or derivative or salt that will cause inhibition of hydrogen peroxide decomposing enzyme such as peroxidase and catalase, bleaching recycled paper with hydrogen peroxide |
| 03/23/1999 | US5885304 Aromatic compounds containing at least two rings, at least one substituted with nitrogen oxygen, or sulfur |
| 03/18/1999 | WO1999013155A1 Polyammonium quaternary polymer for controlling anionic trash and pitch deposition and treating coated broke |
| 03/18/1999 | WO1998059108A3 Oxidation and bleaching system with enzymatically produced oxidizing agents |
| 03/16/1999 | US5882480 Used as agricultural carrier;forming slurry from waste paper containing kaolin, cellulose fibers, screening, cleaning and deinking, cleaning effluent, clarification, dewatering, breaking up filter cake |
| 03/16/1999 | US5882476 Deinking printed wastepaper using alkaline solution containing sodium sulfite and sodium carbonate |
| 03/10/1999 | EP0900299A1 Compositions and methods for inhibiting deposits in pulp and papermaking systems |
| 03/09/1999 | US5880077 Wastepaper reclaiming deinking agent |
| 03/09/1999 | US5879509 Producing papermaking pulp of increased brightness by treating with alpha-amylase |
| 03/03/1999 | CN1209839A Bacterial polyphenol oxidase from bacillus for use in oxidation of colored substance |
| 03/02/1999 | US5876559 Deinking of impact and non-impact printed paper by an agglomeration process |
| 03/02/1999 | US5876558 Froth flotation deinking process for paper recycling |
| 02/17/1999 | EP0896616A1 An enzyme with galactanase activity |
| 02/16/1999 | US5871730 Actinomadura and culture medium secreted from recombitant host |
| 02/16/1999 | US5871161 Method and apparatus for recycling laminated film |
| 02/10/1999 | EP0895520A1 Process for preparing water-soluble, polyamino polycarboxylic acids |
| 02/10/1999 | CN1207783A Soft, bulky absorbent paper contg. chemithermomechanical pulp |
| 02/03/1999 | EP0579672B1 Xylanase, corresponding recombinant dna sequence, xylanase containing agent, and use of the agent |
| 02/02/1999 | US5866618 Polyvinyl alcohol and a high molecular weight gelatin |
| 02/02/1999 | US5866408 Modification of xylanase to improve thermophilicity, alkophilicity and thermostability |
| 02/02/1999 | US5866392 Cellobiose oxidase, and enzymatic agent and a process for treating paper pulp |
| 02/02/1999 | US5865949 Process for preparing and treating mechanical pulp with an enzyme preparation having cellobiohydralase and endo-β-glucanase activity |
| 02/02/1999 | US5865947 Repulping wastepapers |
| 01/26/1999 | US5863783 Improving the break-down of plant cell walls which leads to better utilization of the plant nutrients, removing lignins and terpenoids from the cellulose and hemicellulose wood for papermaking, improving the clarity of fruit, vegetable juice |
| 01/21/1999 | WO1999002770A1 Use of cationic polyelectrolytes and surfactants in the deinking of wastepaper |
| 01/21/1999 | WO1999002693A2 Microbial swollenin protein; dna sequences encoding such swollenins and method of producing such swollenins |
| 01/21/1999 | CA2659180A1 Trichoderma reesei swollenin protein and encoding dna sequences |
| 01/20/1999 | EP0791100B1 Recycling of fibre products |
| 01/14/1999 | WO1999001607A2 Enzymatic oxidation system with novel enzymatic-effect enhancing compounds |
| 01/13/1999 | EP0889957A1 Enzyme multimer and process of producing same |
| 01/12/1999 | US5859236 Ultrasonic agitation of slurry |
| 01/07/1999 | EP0803007B1 A method for bleaching secondary fibres |
| 01/07/1999 | EP0751829A4 Process and apparatus for recycling disposable diapers |