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)
11/1999
11/30/1999CA2009622C Process for reducing the pitch content in wood pulp
11/24/1999EP0957676A1 Method for monitoring growth and detection of environmental stress in plants
11/23/1999US5989724 Recyclable and repulpable ream wrap and related methods of manufacture
11/23/1999US5989392 Adding to papermaking pulp a crosslinked polydiallyldimethylammonium chloride antideposit agent
11/17/1999EP0956190A1 Apparatus for pulping and deinking
11/17/1999EP0920551A4 Method of agglomerating stickies in an aqueous slurry of wastepaper
11/16/1999US5985147 Culturing algae in an attached periphyton bed and running water to be treated over it; allowing algae to sequester pollutant from water thus cleansing water; harvesting algae to remove pollutant; mixing wet biomass with shredded fibers
11/16/1999US5985095 Process for removing contaminants from paper pulp using a deinking composition comprising pressure-sensitive-adhesive
11/11/1999WO1999057353A1 Method for manufacturing a fibre mat, fibre mat and use of such fibre mat
11/09/1999US5981253 Enzyme isolation from akaline receptive microorganism; for processing of paper products, detergents
11/09/1999US5981243 Purified myceliophthora laccases and nucleic acids encoding same
11/09/1999US5979665 Paper-pulp deinking method and equipment to implement this method
11/04/1999WO1999055786A1 Liquid de-inking compositions based on polyalkoxylated terpenic compounds and their use for de-inking
11/04/1999WO1999039044B1 Method and device for measuring bleach requirement, bleachability, and effectiveness of hemicellulase enzyme treatment of pulp
11/04/1999CA2330779A1 Liquid de-inking compositions based on polyalkoxylated terpenic compounds and their use for de-inking
11/02/1999US5976320 Method for producing paper pulp from fibers of annual plants
10/1999
10/28/1999WO1999054545A1 Oxidase process for pulp and dye oxidation
10/28/1999WO1999054544A1 Method of producing lignocellulosic pulp from non-woody species
10/28/1999CA2328991A1 Method of producing lignocellulosic pulp from non-woody species
10/27/1999EP0951598A1 Method of removing capsule oils from self-copying paper
10/26/1999US5972872 Enzyme preparation with cellulytic activity
10/26/1999US5972164 Repulping wet strength broke (recyclable paper) by mixing with water, agitation, adding persulfate and base, heating
10/19/1999US5968313 Recycling fibers in water deinking medium
10/12/1999US5965510 Enhancement of enzyme reactions
10/12/1999US5964983 Containing 80 percent of primary walls and where in primary walls are charged or contain uronic acids; as thickeners, for low calorie food products, in paints, paper, textiles, agriculture, cosmetics, pharmaceutical excipients
10/07/1999DE19845536A1 Removal of finer contaminants from papermaking suspension by froth flotation process
10/06/1999EP0947624A1 Apparatus for dewatering a contaminated fibrous suspension and cylinder for such an apparatus
10/06/1999EP0946820A1 Method and device for conducting a process in the production of paper
10/06/1999EP0946665A1 Paper compound material with repulp-resistant adhesive coating
10/06/1999CN1230987A Cellulase variants
09/1999
09/30/1999WO1999049128A1 Method for inhibiting the deposition of white pitch in paper production
09/30/1999WO1999049127A1 A process for removing contaminants from waste paper
09/30/1999CA2325433A1 Method for inhibiting the deposition of white pitch in paper production
09/29/1999CN1230236A Deinking process
09/28/1999US5958182 Reducing fibrous tropical plant material to plurality of separated fibers, washing in aqueous solution to extract latex and other hydrophobic natural juices, pressing to remove further, drying to naturally hydrophobic fibers
09/28/1999US5958179 Process for increasing pulp whiteness by bleaching printed wastepaper under intense dispersing mechanical treatment
09/28/1999CA2003587C Deinked pulp bleaching process
09/28/1999CA2003079C Deinking agent
09/23/1999WO1999047743A1 Method and apparatus for deinking paper
09/23/1999WO1999047248A1 Contaminant dispersants useful in recycling of treated containers
09/23/1999CA2324280A1 Method and apparatus for deinking paper
09/22/1999EP0943032A1 Multicomponent system for modifying, decomposing or bleaching lignin, lignin-containing materials or similar substances, and process for using the same
09/16/1999WO1999046444A1 Eucalyptus biokraft pulping process
09/16/1999WO1999046443A1 Method of papermaking having zero liquid discharge
09/16/1999WO1999046442A1 Method and apparatus for treatment of fiber suspension containing minerals, such as coated broke, in paper production
09/16/1999WO1999025846A3 Cellulase produced by actinomycetes and method for producing same
09/16/1999WO1999002693A8 Microbial swollenin protein; dna sequences encoding such swollenins and method of producing such swollenins
09/15/1999EP0941385A1 Method of making sanitary paper products from recycled newspapers
09/14/1999US5952394 Compositions and methods for inhibiting the deposition of organic contaminants in pulp and papermaking systems
09/14/1999US5951822 Apparatus for making granular material
09/10/1999WO1999045204A1 Cotton linter tissue products and method for preparing same
09/08/1999EP0939846A1 Production of soft paper products from coarse cellulosic fibers
09/07/1999US5948672 May be employed in the treatment cellulose-containing fabrics for harshness reduction or color clarification or to provide a localized variation in the color of such fabrics, or it may be employed in the treatment of paper pulp.
09/07/1999US5948661 Myxococcus peroxidase
09/07/1999CA1340724C Process for treating a paper pulp with an enzymatic solution
08/1999
08/31/1999US5945327 DNA constructs and methods of producing cellulytic enzymes
08/31/1999US5944953 Pulping
08/26/1999WO1999042657A1 Calcium carbonate synthesis method and resulting product
08/26/1999WO1999042652A1 Process for production of chemical pulp from herbaceous plants
08/26/1999WO1999042651A1 Method for removing wax from a pulp furnish
08/26/1999CA2320961A1 Method for removing wax from a pulp furnish
08/25/1999EP0937138A1 Cellulase variants
08/19/1999WO1999041448A1 Method for the simple and environmentally benign pulping of nonwood fibrous materials
08/17/1999CA2076308C Deinking composition for flotation and deinking method
08/17/1999CA2071544C Process of combatting micro-organisms
08/11/1999EP0934402A1 High molecular weight trichoderma cellulase
08/10/1999US5935836 The compositions of the invention are useful to modify plant biomass properties, especially to reduce the lignin content. the invention is also directed to a method for biobleaching using the enzyme compositions of the invention.
08/05/1999WO1999039044A1 Method and device for measuring bleach requirement, bleachability, and effectiveness of hemicellulase enzyme treatment of pulp
08/05/1999WO1999039043A1 Method and apparatus for wetting fibrous material
08/03/1999US5932629 Anion-based aqueous printing inks with improved deinkability
08/03/1999CA2096659C Method of processing printed waste-paper
07/1999
07/29/1999WO1999037834A1 Process for the production of elementary vegetable bast fibres
07/28/1999EP0931862A1 Process for the production of elementary vegetable bast fibres
07/27/1999US5929183 Anionic compounds containing ester and ether groups and anionic addition-condensation (polyethers) polymers; fibers of superior brightness by flotation, washing and mechanical processes; newspapers
07/27/1999US5929155 Method and composition for providing repulpable moisture vapor barrier coating for flexible packaging
07/22/1999WO1999036199A1 Method for separating wax from waste paper
07/22/1999WO1999025847A3 Cellulase produced by actinomycetes and method of producing same
07/21/1999EP0929713A1 Separation of solids from aqueous suspensions
07/21/1999CN1223163A Fiber reclamation using carbon dioxide
07/20/1999US5925218 Rehydration of once-dried fiber
07/15/1999WO1999035491A2 Method for detecting growth and stress in plants and for monitoring textile fiber quality
07/15/1999WO1999035482A1 A method and an arrangement for measuring the amount/activity of catalase before or in connection with bleaching of preferably cellulose fibres included in a pulp suspension
07/15/1999CA2280804A1 A method and an arrangement for measuring the amount/activity of catalase before or in connection with bleaching of preferably cellulose fibres included in a pulp suspension
07/14/1999EP0928350A1 Baffle for reactors used for liquids purification
07/14/1999EP0606398B1 Improved deinking method using ink agglomeration
07/13/1999US5922586 DNA constructs and methods of producing cellulytic enzymes
07/13/1999US5922579 Degrading xylan-containing substrates using enzyme from chaetomium thermophilium fungus; for bleaching wood pulp, in feed, in baking food
07/08/1999WO1999033900A1 Process of repulping wet strength paper
07/07/1999EP0927789A1 Fiber reclamation using carbon dioxide
07/07/1999EP0927277A1 De-inking liquid composition and its use for de-inking paper
07/06/1999US5919975 Aromatic and aliphatic sulfonates and properties and applications thereof
07/06/1999US5919691 Enzyme and enzyme preparation with endoglucanase activity
07/01/1999WO1999032719A1 Novel strength resins for paper and repulpable wet and dry strength paper made therewith
06/1999
06/30/1999EP0926294A1 Absorbent granular material
06/30/1999EP0926234A2 Thermostable xylanases
06/30/1999CN1043913C Process for modifying breaking down or bleaching ligin, material containing lignin or like material
06/30/1999CA2257024A1 Fiber reclamation using carbon dioxide
06/29/1999US5916795 Thermostable xylanase
06/24/1999WO1999001607A3 Enzymatic oxidation system with novel enzymatic-effect enhancing compounds
06/23/1999EP0924336A1 Process for deinking pulp from waste paper
1 ... 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 ... 55