Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432)
06/1996
06/18/1996CA2079000C Method for the use of enzymes in processing and bleaching of paper pulp, and apparatus for use thereof
06/17/1996CA2164394A1 Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances and processes for its use
06/16/1996CA2165251A1 Deinking composition and process
06/13/1996WO1996017789A1 Recyclable wax-coated containers
06/12/1996EP0715666A1 Process for repulping wet strength paper
06/11/1996US5525193 Improving brightness of recycled paper
06/11/1996CA2012281C Method for producing pulps by treatment using a microorganism, and its related enzymes
06/06/1996WO1996017123A1 Method of removing printing inks from printed wastepaper
06/06/1996WO1996016743A1 Flotation apparatus and deinking method
06/06/1996CA2206006A1 A process for removing printing inks from printed wastepaper
06/05/1996EP0715018A1 Improvements in devices for injecting air in a paperstock for deinking
06/03/1996CA2163852A1 Utilization of oxidized white liquor
05/1996
05/30/1996WO1996016223A1 Deinking processes and novel polymers for use in these
05/30/1996WO1996016222A1 Methods for pulping and deinking
05/30/1996DE4442056A1 Verfahren zur Entfernung von Druckfarben aus bedrucktem Altpapier A process for removing printing inks from printed wastepaper
05/30/1996CA2203676A1 Methods for pulping and deinking
05/28/1996US5520780 Method and apparatus for de-inking newsprint using counterflow extractor
05/23/1996WO1996015315A1 Recycling of fibre products
05/23/1996WO1996015314A1 Recycling of fibre products
05/23/1996WO1996014902A1 Method for removing chemical preservatives from wood
05/23/1996CA2204633A1 Recycling of fibre products
05/22/1996EP0712452A1 Improved deinking method using ink agglomeration
05/21/1996US5518581 Deinking agent for regeneration of waste paper
05/21/1996US5518580 Method of processing printed waste matter
05/15/1996EP0711368A1 Recycle processing of baled waste material
05/15/1996EP0576470B1 A method for reducing pitch trouble in mechanical pulp
05/09/1996WO1996013633A1 Use of monocomponent cellulase for removing inks, coatings, and toners from printed paper
05/09/1996WO1996013574A1 Bacterial protein with xylanase activity
05/08/1996EP0710214A1 The use of dialdehydes and acetals thereof for inhibiting decomposition of peroxide in the production and the treatment of recycled fiber pulp and other fiber pulp
05/08/1996EP0688372A4 System and method for recycling materials
05/08/1996CN1122151A Improvements in or relating to deinking of paper
05/01/1996CN1121734A A method of hydrolysing cholesterol esters by using a pseudomonas fragi cholesterolesterase
04/1996
04/30/1996US5512134 Disintegration; flotation; washing; deinking with alkoxylates of blown oils
04/25/1996WO1996012062A1 A method and apparatus for bleaching secondary fibres
04/24/1996EP0708199A1 Deinking composition
04/24/1996EP0707637A1 Enhancement of laccase reactions
04/24/1996EP0707617A1 Anion-based aqueous printing inks with improved de-inking characteristics
04/23/1996CA2056605C Method of producing pulp
04/18/1996WO1996011262A1 An enzyme and enzyme preparation with endoglucanase activity
04/16/1996US5507914 Mixing in a cellulases in vertical tank, then mixing in water a water soluble cationic and anionic polymers
04/10/1996EP0705327A1 Multicomponent bleaching system
04/09/1996US5505817 Reacting paper with reaction product of castor oil with alkoxylated fatty acid, alcohol, amine, amide, phosphate ester, polyhydroxy alcohol, or sorbitan; removing detached ink particles
04/09/1996US5505772 Incubating wood fragments in a mixture containing a phenol oxidizing enzyme thereby activating the middle lamella lignin; production of fiberboard without chemical disintegration and without addition of binders
04/03/1996EP0704003A1 Deinking formulation for flexographic inks
04/03/1996EP0704002A1 A pulp production process
04/02/1996US5503710 Treating screened fine pulp with sodium bisulfite or hydrogen peroxide; separately refining fine and coarse pulps and laminating plies; papermaking
04/02/1996US5503709 Separation in presence of enzymes; peroxygen delignification
03/1996
03/28/1996WO1996009433A1 Paper pulp washing method
03/27/1996EP0702734A1 Improved method of removing hydrophilic ink
03/26/1996US5501770 Enzymes in combination with polyelectrolytes for enhancing the freeness of clarified sludge in papermaking
03/21/1996WO1996008598A1 Deinking composition and method for deinking waste paper
03/21/1996CA2199745A1 Deinking composition and method for deinking waste paper
03/19/1996US5500086 Method for producing pulp from green algae
03/19/1996US5500082 Deinking of xerographic printed wastepaper using long chain alcohol
03/17/1996CA2139884A1 Use of polymers in the recycled fiber washing/deinking process
03/13/1996EP0701018A1 Process for the recycling of silicone coated paper
03/13/1996EP0558729B1 Method of processing printed waste-paper
03/12/1996US5498534 Method of removing color from wood pulp using xylanase from streptomyces roseiscleroticus NRRL B-11019
03/07/1996WO1996006978A1 Method of papermaking having zero liquid discharge
03/07/1996WO1996006975A1 Thin mat washing of cellulosic pulp
03/07/1996CA2208269A1 Method of papermaking having zero liquid discharge
03/07/1996CA2208265A1 Thin mat washing of cellulosic pulp
03/05/1996US5496439 Recycle processing of baled waste material
02/1996
02/28/1996EP0698681A1 Process for depithing pith containing plants, in particular sorghum
02/28/1996EP0698667A1 Xylanase, microorganisms for its production, DNA molecules, process of preparation and use thereof
02/28/1996EP0698141A1 Method of monitoring the deposition of "stickies" from paper-pulp suspensions
02/24/1996CA2133550A1 Method and apparatus for separating wood fibres from other fibres in fibremat residues
02/22/1996WO1996005362A1 Method of enhancing biopulping efficacy
02/22/1996WO1996005361A1 Flotation deinking of wastepaper using a froth controlling agent
02/22/1996WO1996005054A1 Recyclable and compostable coated paper stocks
02/22/1996DE4429277A1 Regulating flotation cell for de=inking waste paper
02/21/1996EP0697043A1 Improvements in or relating to deinking of paper
02/14/1996EP0696663A1 Enzymes in combination with polyelectrolytes for enhancing the freeness of clarified sludge in papermaking
02/14/1996EP0573497B1 Recycling waste cellulosic material
02/14/1996EP0487557B1 Improvement of pulp bleaching
02/13/1996US5491121 Can be recycled with white paper; color coded with printing ink including oil based vehicle and dye free component
02/07/1996EP0695349A1 Enzymes with xylanase activity from aspergillus aculeatus
02/06/1996US5489642 Repulpable contact adhesive
02/01/1996WO1996002632A1 Novel xylanase, process for producing the same, method for the treatment of pulp, and production of xylo-oligosaccharides
01/1996
01/31/1996EP0694064A1 A METHOD OF HYDROLYSING CHOLESTEROL ESTERS BY USING A $i(PSEUDOMONAS FRAGI) CHOLESTEROL ESTERASE
01/30/1996US5487812 Treatment of alkaline bleached mechanical wood pulp with pectinase
01/30/1996CA2129171A1 Actinomadura xylanase sequences and method of use
01/23/1996US5486468 Delignification of wood pulp
01/23/1996US5486268 Oxygen delignification of old corrugated containers
01/18/1996DE4425237A1 Disposal of woven sacking
01/17/1996EP0692043A1 Process and enzyme preparation for preparing mechanical pulp
01/17/1996CN1030725C Method of preparing pulp
01/11/1996WO1996000811A1 Production of soft paper products from old newspaper
01/11/1996CA2194188A1 Production of soft paper products from old newspaper
01/04/1996WO1996000290A1 Purified polyporus laccases and nucleic acids encoding same
01/04/1996CA2193070A1 Purified polyporus laccases and nucleic acids encoding same
01/03/1996EP0689625A1 Pitch degradation with white rot fungi
12/1995
12/27/1995EP0688377A1 Persulfate mixtures for repulping wet strength paper
12/27/1995EP0688372A1 System and method for recycling materials
12/21/1995WO1995034662A1 Thermostable xylanases
12/20/1995EP0687320A1 Process for preparing mechanical pulp
12/19/1995US5476790 Inoculation with schizophyllum trichaptum and phanerochaete
12/19/1995US5476789 Composition containing strains of Ophiostoma piliferum and a method of using the composition to reduce the pitch content of pulpwood or pulp
12/14/1995WO1995033883A1 Method and enzymatic preparation for treatment of cellulose pulps
12/14/1995WO1995033836A1 Phosphonyldipeptides useful in the treatment of cardiovascular diseases
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