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)
12/1995
12/14/1995CA2191859A1 Method and enzymatic preparation for treatment of cellulose pulps
12/14/1995CA2191718A1 Phosphonyldipeptides useful in the treatment of cardiovascular diseases
12/13/1995EP0686724A1 Deinking agent and method of deinking by flotation using said agent
12/13/1995EP0686216A1 Inhibition of hydrogen peroxide decomposing enzymes, e.g. catalase and peroxidase during bleaching of cellulose fibers
12/13/1995EP0686193A1 Alkali-tolerant xylanases
12/13/1995EP0677123A4 Deinking of printed paper by agglomeration process.
12/06/1995CN1030474C Method for paper making using no alkali
12/05/1995US5472874 Pitch degradation with white rot fungus
12/05/1995US5472569 Paper comprising cellulose fiber and seaweed particles in integral form
11/1995
11/28/1995CA2023904C Deinking and bleaching secondary fiber
11/22/1995EP0683265A1 Pitch degradation with white rot fungus
11/22/1995EP0682727A1 A method for the production of plastic formed products containing cellulose fibres from straw and an intermediate moulding composition therefor
11/21/1995CA2149807A1 Pitch degradation with white rot fungus
11/14/1995US5466338 Use of dispersion polymers for coated broke treatment
11/14/1995US5466333 Deinking, oxidation
11/09/1995WO1995029998A1 Thermostable xylanases
11/09/1995WO1995029997A1 Use of a thermostable enzyme as a feed additive
11/09/1995CA2188558A1 Use of a thermostable enzyme as a feed additive
11/08/1995EP0680530A1 Treatment of cellulosic material and compositions for use in this
11/07/1995US5464501 Bleaching recycled pulp with a reductive-oxidative sequence
11/02/1995WO1995029290A1 Deinking agent and process for deinking printed wastepaper
11/02/1995WO1995029289A1 Paper deinking process using an ethylene oxide and butylene oxide block polyol
11/02/1995EP0679183A1 Enhancement of enzyme reactions
11/02/1995EP0624211B1 Method of removing the ink from recycled printed paper
10/1995
10/26/1995WO1995028517A1 Method and apparatus for controlling bleaching chemical usage
10/26/1995CA2147781A1 Use of polymers containing vinylamine for the treatment of coated broke
10/24/1995US5460697 Method of pulping wood chips with a fungi using sulfite salt-treated wood chips
10/24/1995US5460695 Method of deinking waste paper for reclamation thereof
10/18/1995EP0677611A1 Method of reducing fluorescence in deinked pulp
10/18/1995EP0677123A1 Deinking of printed paper by agglomeration process
10/17/1995US5458736 Paper recycling for food and medical packaging materials
10/16/1995CA2147204A1 Method of reducing fluorescence in deinked pulp
10/12/1995WO1995027099A1 Nonwooden fiber digesting method and digesting apparatus for the same
10/10/1995US5457045 Enzymes with xylanolytic activity
10/05/1995WO1995026398A1 A modified cellulase and an enzyme preparation comprising a modified cellulase
10/05/1995WO1995026397A1 Alkaline bacillus amylase
10/03/1995US5454909 Low-density hot melt adhesive
09/1995
09/28/1995DE19510278A1 Bleaching agent, useful esp. for recycled waste paper pulp prodn.
09/27/1995EP0674040A1 Process for de-inking paper pulp and apparatus for the application of the process
09/27/1995EP0513140B1 A process for the bleaching of chemical pulp
09/27/1995CA2145439A1 Process and agent for the oxidative bleaching of wood pulp and for deinking waste paper
09/26/1995US5453159 High and low speed agitataion
09/21/1995WO1995025197A1 Regeneration of pulp liquors
09/21/1995WO1995024967A1 Process and apparatus for recycling disposable diapers
09/21/1995CA2185224A1 Regeneration of pulp liquors
09/21/1995CA2185122A1 Process and apparatus for recycling disposable diapers
09/20/1995EP0672125A1 Enhancement of enzyme reactions
09/14/1995WO1995024526A1 Method of agglomerating printing ink and formulations for use therein
09/14/1995WO1995024471A1 Novel alkaline cellulases
09/14/1995CA2185101A1 Novel alkaline cellulases
09/14/1995CA2185007A1 Method of agglomerating printing ink and formulations for use therein
09/13/1995EP0670893A1 Novel enzyme preparations and methods for their production
09/12/1995US5449725 Recycling printed paper; anionic polymers; brightness
09/12/1995US5449436 Sulfite, sodium borohydride, hydrogen peroxide
09/05/1995US5447602 Process for repulping wet-strength paper
08/1995
08/30/1995CN1107529A Pulping method for paper-making
08/23/1995EP0628107B1 Wastepaper deinking process
08/15/1995US5442082 Treatment with alkylene oxide in the presence of an alkaline alkoxylation catalyst; for removal of printing inks from waste paper
08/15/1995US5441601 Adding water insoluble organic ester to agglomerate toner particles
08/10/1995WO1995021292A1 Method and apparatus for treating recycled pulp
08/02/1995EP0665327A2 Method for producing recycled materials for hygienic end uses
08/01/1995US5437992 Five thermostable xylanases from microtetraspora flexuosa for use in delignification and/or bleaching of pulp
07/1995
07/26/1995EP0663949A1 New xylanases having high activity and stability at alkaline conditions and high temperatures
07/26/1995EP0464221B1 Process for producing pulp
07/18/1995US5434071 α-L-arabinofuranosidase and xylanase from Bacillus stearothermophilus NCIMB 40221, NCIMB 40222 or mutant thereof for delignification
07/12/1995EP0583319B1 Lipase-catalyzed ester hydrolysis
07/06/1995WO1995018260A1 Process for delignifying virgin and post-consumer used ligno-cellulosic plant meterials for the purpose of preparing cellulosic fiber, free sugars and lignin by-products
07/06/1995WO1995018252A1 Fiber and fiber products produced from feathers
07/06/1995WO1995018219A1 Alkali-tolerant xylanases
07/06/1995WO1995007604A3 A method of producing fibreboard
07/04/1995US5429716 Newsprint, sodium bisulfite and sodium borohydride
06/1995
06/29/1995WO1995017546A1 Inhibition of hydrogen peroxide decomposing enzymes, e.g. catalase and peroxidase during bleaching of cellulose fibers
06/28/1995EP0659932A2 Method and centrifugal separator for magnetically removing ink particles
06/28/1995EP0659489A2 Means for generating air bubbles in a liquid
06/27/1995US5427945 White-rot fungus and uses thereof
06/27/1995CA2024233C Apparatus for removing ash from repulped wastepaper
06/20/1995US5426043 Cloning and expression of acetyl xylan esterases from fungal origin
06/14/1995EP0657578A1 Process of treating waste paper for paper manufacture
06/14/1995DE4443906A1 Recycling medium bearing hydrophobic image esp. photocopy
06/14/1995CA2123328A1 Magnetic deinking
06/08/1995WO1995015412A1 System for de-inking newsprint using conterflow extractor
06/07/1995EP0656057A1 Combined action of endoglucanases and cellobiohydrolases
06/01/1995WO1995014809A1 Treatment of pulp with a mannanase in a bleaching process
06/01/1995WO1995014807A1 Deinking of waste paper by treatment with starch degrading enzyme e.g. amylase
05/1995
05/31/1995EP0655490A2 Repulpable pressure sensitive adhesive
05/30/1995CA1335687C Method for increasing the degree of whiteness of waste paper with neutral water circulation
05/23/1995US5417808 Deinking composition for flotation and deinking method
05/23/1995US5417807 Flotation, salts and/or fatty and rosin acids
05/23/1995US5417806 Cleaning and decontamination of fiber by washing and flotation a suspension
05/18/1995WO1995013426A1 Method of manufacturing a recyclable paper product
05/18/1995CA2175993A1 Method of manufacturing a recyclable paper product
05/17/1995EP0652990A1 Method of processing recycled paper.
05/16/1995US5415739 Detackification agent for adhesives found in paper fiber furnishes
05/16/1995US5415735 Suspennnnnsion of galactoglucomannans and deacetylation using esterase enzymes
05/16/1995US5415733 Method of removing hydrophilic ink
05/11/1995WO1995012708A1 Product and processing for reclaiming cotton fibers from 100 % cotton denim manufacturing scrap
05/11/1995WO1995012550A1 Deinking of recycled pulp
05/11/1995CA2175251A1 Deinking of recycled pulp
05/10/1995EP0652321A1 Chemical pulp bleaching
05/10/1995EP0651792A1 A novel cellobiose oxidase, an enzymatic agent and a process for treating paper pulp
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