Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21C - Production of cellulose by removing non-cellulose substances from cellulose- containing materials; Regeneration of pulping liquors; Apparatus therefor › D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters
Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432)
08/1998
08/19/1998CN1190683A High strength corrugated raw paper pulp production technology
08/18/1998US5795855 Enhancement of laccase reactions
08/18/1998US5795760 Purified Myceliophthora laccases and nucleic acids encoding same
08/12/1998EP0857230A2 Production of soft paper products from high and low coarseness fibers
08/12/1998EP0739433B1 Process for modifying, breaking down or bleaching lignin, materials containing lignin or coal
08/06/1998WO1998033971A1 Use of alkylpolyglycosides for deinking wastepaper
08/06/1998DE19704183A1 Bleaching fibres from recycled paper
08/06/1998DE19703360A1 Verwendung von Alkylpolyglycosiden zum Deinken von Altpapieren Use of alkylpolyglycosides for deinking wastepaper
08/05/1998CN1189556A Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances and processes for its use
08/04/1998CA2155124C Inhibition of hydrogen peroxide decomposing enzymes, e.g. catalase and peroxidase during bleaching of cellulose fibers
07/1998
07/29/1998EP0687320B1 Process for preparing mechanical pulp
07/28/1998US5785811 Process for treating lignocellulosic material with soybean peroxidase in the presence of peroxide
07/28/1998US5785809 Using an enzyme to dislodge ink particles at a controlled ph
07/23/1998WO1998031871A1 Method for fractionating cereal straw, in particular wheat and barley
07/23/1998DE19702060A1 Separation of printing ink from paper fibre suspension
07/22/1998CN1188520A Fiber and fiber products produced from feathers
07/16/1998WO1998030750A1 Method of removing capsule oils from self-copying paper
07/15/1998EP0852636A1 Method for improving the efficiency of chemical pulping processes by pretreating wood or pulpwood with white rot fungi
07/14/1998US5779858 Deposition control in pulp and papermaking systems using a composition comprising of polyvinyl alcohol and gelatin
07/09/1998DE19700253A1 Verfahren zur Entfernung von Kapselölen aus Selbstdurchschreibepapier A process for removing capsule oils from carbonless paper
07/08/1998EP0852260A1 Oxidase, microorganisms producing the same and use of the same
07/08/1998EP0851783A1 Novel aromatic and aliphatic sulfonates and properties and applications thereof
07/02/1998WO1998028490A1 Method and device for conducting a process in the production of paper
07/02/1998WO1998028378A1 Paper compound material with repulp-resistant adhesive coating
06/1998
06/30/1998US5772847 Adding water and chelate compound to cellulose sludge
06/30/1998US5771718 Concentrated washing machine
06/25/1998WO1998016682A3 Process for the co-production of dissolving-grade pulp and xylan
06/25/1998DE19654177A1 Papierverbundmaterial mit repulpierfest ausgerüsteter Haftkleberbeschichtung Paper composite material with repulpierfest equipped adhesive coating
06/24/1998EP0820544A4 Treatments for inhibiting deposition in papermaking systems
06/24/1998EP0636192B1 Deinking of cellulosic material and compositions for use in this
06/24/1998CN1185818A Deinking method
06/23/1998US5770418 Purified polyporus laccases and nucleic acids encoding same
06/23/1998US5770012 Mixture of cellulase and xylanase enzymes
06/23/1998CA2119748C Improved deinking method using ink agglomeration
06/18/1998WO1998026127A1 Multicomponent system for modifying, decomposing or bleaching lignin, lignin-containing materials or similar substances, and process for using the same
06/18/1998CA2271937A1 Multicomponent system for modifying, decomposing or bleaching lignin, lignin-containing materials or similar substances, and process for using the same
06/17/1998EP0847970A1 Process for recovering high-yield fibrous material from residuals and excess of quickly renewed vegetables, and its use
06/16/1998US5766926 Pitch degradation with wood colonizing bacteria
06/10/1998EP0846703A1 Methods for processing bacterial cellulose
06/10/1998DE19651099A1 Mehrkomponentensystem zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien oder ähnlichen Stoffen sowie Verfahren zu seiner Anwendung Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances and to processes for its application,
06/09/1998US5763260 Method to alter the properties of acetylated xylan
06/09/1998US5762758 Method of papermaking having zero liquid discharge
06/09/1998US5762756 Simultaneously pulping waste paper and dispersing ink particles therefrom in high solids aqueous mixture
06/04/1998WO1998023814A1 Production of soft paper products from coarse cellulosic fibers
06/04/1998WO1998023813A1 Method of making sanitary paper products from recycled newspapers
06/04/1998CA2270424A1 Method of making sanitary paper products from recycled newspapers
06/04/1998CA2269871A1 Production of soft paper products from coarse cellulosic fibers
06/02/1998US5759938 Process for producing organoclays with quaternary ammonium compositions made using non volatile diluents
06/02/1998US5759840 Modification of xylanase to improve thermophilicity, alkalophilicity and thermostability
06/02/1998US5759258 Composite particles; calcium carbonate covering
05/1998
05/27/1998EP0843723A1 Method for enhancing the activity of an enzyme, compounds showing enzyme activity enhancement, and detergents containing such compounds
05/26/1998US5756098 Methods for the extraction of phytochemicals from fibrous plants in the absence of solvent
05/26/1998US5755926 Oxidizing, bleaching in alkaline slurry, dissolving lignin, decompression by discharging, separating the adhesive from fibers; recycling/wastes/
05/26/1998US5755925 Brightness stabilization
05/22/1998WO1998021399A1 Use of surfactants in the deinking of waste paper
05/20/1998CN1182451A Novel endoglucanases
05/19/1998US5753079 Obtaining enhanced paper production using cationic compositions containing diol and/or diol alkoxylate
05/19/1998US5753074 Method of washing a thin mat of cellulosic pulp
05/13/1998CN1181795A Process for recovering raw materials from a flow of residual or collected materials during paper manufacture and plant therefor
05/12/1998US5750034 Hydrophilic dispersion polymers for the clarification of deinking process waters
05/12/1998US5750005 Inoculating wood chips with a white rot funi and corn steep liquor as a fungal nutrient; incubation; pulping; delignification
05/06/1998EP0839767A2 Hydrophilic dispersion polymers for the clarification of deinking process waters
05/05/1998US5746888 Methods for inhibiting organic contaminant deposition in pulp and papermaking systems
05/05/1998US5746885 Swelling and pulping recycled paper, separation from inks, blending to make pulp emulsion in water and polymer nonionized monomer, crosslinking
05/01/1998CA2219868A1 Hydrophilic dispersion polymers for the clarification of deinking process waters
04/1998
04/29/1998EP0837968A1 Auxiliary paper-producing aid with recurring succinyl units
04/29/1998EP0725854B1 Aminoalkane diphosphonic acids in pulp bleaching
04/29/1998CN1038202C Device for controlling production equipment of declouring paper pulp
04/23/1998WO1998016682A2 Process for the co-production of dissolving-grade pulp and xylan
04/23/1998CA2267985A1 Process for the co-production of dissolving-grade pulp and xylan
04/22/1998EP0682727B1 A method for the production of plastic formed products containing cellulose fibres from straw and an intermediate moulding composition therefor
04/21/1998US5741693 Protease isolated from pure cultures for use in detergents
04/16/1998WO1998015686A1 Separation of solids from aqueous suspensions
04/16/1998WO1998015619A1 High molecular weight trichoderma cellulase
04/16/1998CA2267250A1 Separation of solids from aqueous suspensions
04/15/1998CN1179189A System and method for recycling materials
04/09/1998DE19641911C1 Recovery of valuable materials from e.g. fast food packages containing plastic, paper and food residues
04/08/1998EP0834614A2 Deinking process
04/08/1998EP0704003B1 Deinking formulation for flexographic inks
04/08/1998CN1178545A Recycling of mineral fillers from residue of paper deinking plant
04/07/1998US5736622 Includes a polyester obtained through the reaction between a polyalkylene glycol and a di-and/or tricarboxylic acid
04/07/1998US5736384 Thermostable xylanase
04/07/1998US5735472 Rotating drum comprising screening and mashing chambers for separating paper fibers and contaminants
04/01/1998EP0832316A1 Fiber and fiber products produced from feathers
04/01/1998EP0777575A4 Recyclable and compostable coated paper stocks
04/01/1998CN1177639A Modification of xylanase to improve thermophilicity, alkophilicity and thermostability
03/1998
03/31/1998US5733413 Method for removing contaminates from aqueous paper pulp
03/31/1998US5733412 Decolorizing brown fibers in recycled pulp
03/31/1998CA2133630C Method and apparatus for screening waste paper pulp
03/26/1998WO1998012377A1 De-inking liquid composition and its use for de-inking paper
03/26/1998WO1998012307A1 Cellulase variants
03/26/1998WO1998012143A1 Process for cleaning wastewater and recirculating water in paper production, de-inking and bleaching of pulp
03/26/1998DE19638594A1 Verfahren zur Reinigung von Abwässern und Kreislaufwässern bei der Papierherstellung, dem Deinking und der Zellstoffbleiche A process for the purification of waste waters and circulation waters in papermaking, the deinking and pulp bleaching
03/24/1998US5730837 Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars
03/18/1998EP0513140B2 A process for the bleaching of chemical pulp
03/17/1998US5728270 From waste paper
03/17/1998US5728263 Method for inhibiting enzymatic decomposition of peroxide in the treating of fiber pulp using dialdehydes and acetals
03/11/1998EP0828002A2 Modification of xylanase to improve thermophilicity, alkophilicity and thermostability
03/11/1998EP0711368A4 Recycle processing of baled waste material
03/10/1998US5725735 Plastic olefin coating
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