| Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452) |
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| 05/01/2003 | WO2003035271A1 Spraying nozzle for rewet showers |
| 05/01/2003 | US20030079848 Method for production of paper |
| 05/01/2003 | CA2690263A1 Spraying nozzle for rewet showers |
| 04/30/2003 | CN1106938C Multi-layer recyclable used material with barrier properties against humidity and gas and its manufacture method |
| 04/29/2003 | US6554899 Paper coating apparatus |
| 04/24/2003 | WO2003034170A1 Method and apparatus for controlling the operation of stock preparation of a paper machine |
| 04/24/2003 | WO2003033272A1 Translucent web-type recording material and a method for producing the same |
| 04/24/2003 | WO2003033261A1 Method for extrusion coating a lightweight web |
| 04/24/2003 | WO2003033237A1 Method for extrusion coating multiple webs |
| 04/24/2003 | WO2003032726A1 Antimicrobially-treated fabrics |
| 04/24/2003 | US20030077314 Unsaturated polysiloxane overcoated paper web |
| 04/24/2003 | US20030075294 Day tank doser |
| 04/23/2003 | CN1413168A Silica-based sols |
| 04/23/2003 | CN1106482C Process for making paper, and materials for use in same |
| 04/23/2003 | CN1106481C Lotioned tissue paper |
| 04/22/2003 | US6551950 Surface coatings |
| 04/22/2003 | US6551457 Forming aqueous suspension containing cellulosic fibres, and fillers; draining suspension to form paper web; subjecting paper web to impulse pressing by passage through press nip; adding polymer and micro-or nanoparticles to suspension or web |
| 04/22/2003 | US6551454 Coating a sheet of paper or paperboard, bringing the sheet containing water to a calender, leading the sheet in a nip formed by two rolls, heating and pressurizing, and removing water to a preferred value, winding the sheet on a roll |
| 04/17/2003 | WO2003031080A1 Method and apparatus for coating both sides of a web |
| 04/16/2003 | EP1268176A4 Paperboard tray having crack-resistant barrier coating |
| 04/16/2003 | CN1105805C Paper making process |
| 04/15/2003 | US6548427 A temporary wet strength agent that forms hemi-acetal bonds with the web fibers to prevent immediate degradation when contact with water, an alkaline agent for interacting with web to degrade the web when contact with water |
| 04/10/2003 | WO2002072951A3 Method for treating pulp with water insoluble chemical additives |
| 04/10/2003 | US20030066617 Flocculants; papermaking, water purification; mixture containing organonitrogen compound |
| 04/09/2003 | EP0938385B1 Procedure and apparatus for transferring of addition to the surface of a movable material web |
| 04/08/2003 | US6544722 Process for the preparation of polymer laminated base paper and polymer laminated photographic base paper obtainable by said process |
| 04/03/2003 | US20030064222 Process and apparatus for manufacturing fiber and fiber sheet carrying solid particles and fiber and fiber sheet carrying solid particles |
| 04/02/2003 | CN1408038A Cellulose products comprising silicate and processes for preparing the same |
| 04/01/2003 | US6541072 Method for making a coated substrate having high MVTR |
| 04/01/2003 | US6540878 Improved paper making process wherein calcium carbonate is used as filler |
| 04/01/2003 | US6540870 By introducing carbon dioxide to the pulp suspension; for the production of paper or board |
| 04/01/2003 | US6540862 Method and apparatus for enhancing film adhesion when extruding polyethylene terephthalate onto paperboard |
| 03/27/2003 | US20030056917 Debonding agents may be a mixture of two different quaternary imidazolium salts, an amino-functional siloxane or a nonionic polysiloxane |
| 03/26/2003 | EP1294984A1 Formation of oriented multilayer polymeric films |
| 03/26/2003 | EP1294983A2 Biodegradable coated substrates |
| 03/20/2003 | WO2003023139A1 Method of improving retention and drainage in a papermaking process using a diallyl -n, n-disubstituted ammonium halide/acrylamide copolymer and a structurally modified cationic polymer |
| 03/19/2003 | EP1293603A2 The production of paper using colloidal borosilicate |
| 03/19/2003 | EP0809734B2 Process for enhancing the bulk softness of tissue paper |
| 03/18/2003 | US6534113 Method of controlling the amount of coating applied on a moving material web |
| 03/18/2003 | CA2115652C Apparatus for adjusting the creping conditions |
| 03/13/2003 | WO2003021037A1 Tissue products containing a flexible binder |
| 03/13/2003 | WO2002084029A3 Process for making multilayer coated paper or paperboard |
| 03/12/2003 | EP1291464A2 Process and apparatus for manufacturing fiber and fiber sheet carrying solid particles |
| 03/12/2003 | EP1289748A1 Method of stabilizing composite media and media produced thereby |
| 03/12/2003 | EP1204796B1 Method for the manufacture of a finished product from a lignocellulosic material |
| 03/12/2003 | EP0944439B1 Coating blade |
| 03/06/2003 | WO2003018910A1 Method for sizing paper and sized paper |
| 03/06/2003 | WO2003018908A1 Method in a paper or pulp process to control the chemical state of the pulp and circulation water system |
| 03/06/2003 | WO2003018210A1 Coater for dispersed slurry |
| 03/06/2003 | US20030045962 Control system using process model |
| 03/06/2003 | US20030041989 Soft chemi-mechanically embossed absorbent paper product and method of making same |
| 03/05/2003 | EP1287204A1 Method for treating the surface of a substrate and a device for carrying out said method |
| 03/05/2003 | CN1401034A Method for improving printability and coatability of paper and board |
| 02/27/2003 | WO2003016624A1 Method for production of coated paper with extreme whiteness |
| 02/27/2003 | WO2003016379A1 Modified polyalkyleneimine and methods of using the same |
| 02/27/2003 | WO2002038864A3 Flame-retarded paper products and method and apparatus for making them |
| 02/27/2003 | US20030039761 Curtain coating apparatus and curtain coating process |
| 02/27/2003 | US20030037896 Paper products and a method for applying a dye to cellulosic fibers |
| 02/26/2003 | EP1285131A2 Control of paper color |
| 02/26/2003 | EP1285130A2 Papermaking pulp and flocculant comprising acidic aqueous alumina sol |
| 02/26/2003 | EP1285126A1 Method and device for manufacturing a paper or board web where the finishing device can be bypassed |
| 02/25/2003 | US6524440 Providing a starch component containing a cationized crosslinked starch having specific hot paste viscosity, cooking first portion of the starch for a specific time andtemperature, cooking second portion for different |
| 02/25/2003 | US6524439 Using as flocculant both microparticle and siliceous material, such as silica |
| 02/25/2003 | US6524388 Coating apparatus with a rotatable backing rolling and method thereof |
| 02/19/2003 | EP1047836B1 Method and apparatus for processing a discontinuous coating on a substrate |
| 02/18/2003 | US6521299 Web and said aqueous coating mass have opposing polarities |
| 02/13/2003 | WO2003012201A1 Method and apparatus for the dosage of binding agent |
| 02/13/2003 | WO2003012200A1 Core raw paper for corrugated boards, and method of producing the same |
| 02/13/2003 | US20030032350 Method of making foam coated mat online and coated mat product |
| 02/13/2003 | US20030031854 Method of making coated mat online and coated mat products |
| 02/13/2003 | US20030030000 High-efficiency plasma treatment of paper |
| 02/12/2003 | EP1283299A2 Method of making foam coated mat online and coated mat products |
| 02/12/2003 | EP1282742A1 Process for making paper |
| 02/12/2003 | EP1282741A1 Method of adsorption of cationic and anionic polymers on the surface of particles and paper or nonwoven product containing such particles |
| 02/05/2003 | EP1280960A1 Cellulose products comprising silicate and processes for preparing the same |
| 02/05/2003 | CN1395684A Measuring apparatus and method for properties of board products |
| 02/04/2003 | US6514384 Improving water drainage efficiency from furnishes/coatings on papermaking apparatus via cellulosic fibers |
| 01/30/2003 | US20030019599 An aqueous dispersion comprising starch having aromatic groups and an anionic polyelectrolyte; wet resistance, storage stability; use in papermaking |
| 01/29/2003 | EP1278912A2 Hydroxy-phenoxyether polymers in papermaking |
| 01/29/2003 | EP1278604A1 Process for coating paperboard with a water-dispersible polyester polymer |
| 01/29/2003 | EP1003934B1 Method and device for applying a pigment coating to a strip of paper or cardboard |
| 01/29/2003 | EP0977636B1 Method and device for applying dispersions on a strip of material |
| 01/29/2003 | CN1394249A Method for determining characteristic value for binding force potential of suspended paper fibers and use of this method |
| 01/28/2003 | US6511581 Corona discharge; guiding the droplets or particles to be treated to impinge on a desired surface by means of an electric field |
| 01/23/2003 | WO2003006741A1 Apparatus for loading fibers in a fiber suspension with calcium carbonate |
| 01/23/2003 | WO2003006738A1 Apparatus and method for improving paper strength |
| 01/22/2003 | EP0700473B2 Process for producing paper |
| 01/22/2003 | CN1099323C Coating blade |
| 01/16/2003 | WO2003004770A1 Method for producing sized paper or cardboard |
| 01/16/2003 | WO2003004769A1 Method and apparatus for producing sized paper or board |
| 01/16/2003 | WO2003004768A1 Printing paper and a method for its manufacture |
| 01/16/2003 | US20030012897 Liquid-resistant paperboard tube, and method and apparatus for making same |
| 01/16/2003 | US20030010463 Apparatus for loading fibers in a fiber suspension with calcium carbonate |
| 01/16/2003 | CA2450854A1 Method for producing sized paper or cardboard |
| 01/16/2003 | CA2450838A1 Method and apparatus for producing sized paper or board |
| 01/15/2003 | EP1275494A1 Liquid-resistant paperboard tube, and method and apparatus for making same |
| 01/15/2003 | EP1274889A1 Absorbent composite having fibrous bands |
| 01/15/2003 | CN1098949C Production of paper and paper board |
| 01/15/2003 | CN1098948C Antibacterial paper and its paper-making technology |
| 01/14/2003 | CA2354106C Production of filled paper and compositions for use in this |