| Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452) |
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| 05/14/1999 | CA2325906A1 High speed coating apparatus and method |
| 05/12/1999 | EP0914519A1 Internally sized cellulosic products and method for making same |
| 05/11/1999 | US5902455 Process for improving retention in a process for the manufacture of paper, board and the like, and retaining agent for the application of this process |
| 05/11/1999 | US5902401 Coater head |
| 05/06/1999 | WO1999022068A1 Production for mottled paper |
| 05/06/1999 | WO1999022067A1 Method and device for applying a medium on a running web of material |
| 05/06/1999 | WO1999022040A1 Coating bar for pulp and paper manufacture |
| 05/06/1999 | CA2304300A1 Production for mottled paper |
| 05/06/1999 | CA2275993A1 Method and device for applying a medium on a running web of material |
| 05/04/1999 | US5900116 Zeolite crystalloid coagulant is added to water containing the solid matter, a source of multivalent cations, and a cationic acrylamide polymer. |
| 04/29/1999 | DE19823724A1 Web coating system for fiber web surface of paper-making machine |
| 04/29/1999 | DE19747091A1 Wet paper or card coating unit |
| 04/28/1999 | EP0911447A2 Apparatus and process for coating a web, especially paper or board |
| 04/28/1999 | EP0911446A2 Process and apparatus for coating a paper or board web with a fluid or pasty material |
| 04/28/1999 | EP0910701A1 Process for producing paper and cardboard |
| 04/28/1999 | EP0910699A1 Process for improving printing paper |
| 04/28/1999 | EP0910698A1 Chemically enhanced multi-density paper structure and method for making same |
| 04/28/1999 | CN1215109A Method for reducing whiteness inversion of wood pulp caused by heat and light |
| 04/27/1999 | US5897746 Method for equipping papers of value with authenticity features |
| 04/27/1999 | US5897744 Method for controlling speck defects in recycling paper product |
| 04/24/1999 | CA2251319A1 Process and device for acting on a paper or cardboard web with one of a fluid and pasty coating medium |
| 04/24/1999 | CA2251305A1 Coating device and coating process for the wet section of a machine for the production of a material web, in particular of paper or cardboard |
| 04/22/1999 | WO1999019081A1 Spray application of an additive composition to sheet materials |
| 04/21/1999 | EP0909356A1 Method and device for coating a continuous strip of material, specially paper or cardboard, with a liquid or paste-like application medium, method for the production of a coated strip |
| 04/20/1999 | US5895542 Coater and a method for coating a substrate |
| 04/20/1999 | CA2007132C Inverted blade metering unit and method for blade-coating a material web |
| 04/14/1999 | EP0908561A1 Method for coating webs |
| 04/14/1999 | EP0908558A1 Process for preparing base paper for coated fine paper |
| 04/14/1999 | CN1214093A Sizing of paper |
| 04/13/1999 | US5893951 Applicator and method for direct or indirect application of a liquid or pasty coating medium onto a traveling material web |
| 04/13/1999 | CA2053505C Foam forming method and apparatus |
| 04/08/1999 | WO1999016975A1 Method for surface sizing paper with 2-oxetanone and rosin and paper prepared thereby |
| 04/08/1999 | WO1999016973A2 Surface sizing of paper |
| 04/08/1999 | WO1999016972A1 Paper strength enhancement by silicate/starch treatment |
| 04/08/1999 | DE19743641A1 Web surface coating assembly |
| 04/08/1999 | CA2296448A1 Method for surface sizing paper with 2-oxetanone and rosin and paper prepared thereby |
| 04/07/1999 | CN1213421A Clay compositions and their used in paper making |
| 04/07/1999 | CN1213420A Activation of swelling clays and processes of using the activated clays |
| 04/06/1999 | US5891306 Papermaking |
| 04/06/1999 | US5891305 Adding cationic starch and polyaluminum compound to paper fibers |
| 04/01/1999 | WO1999015731A1 Method and assembly for controlling mist and dust in the manufacture and finishing of paper and board |
| 04/01/1999 | DE19743279A1 Web coating applicator with a setting mechanism having a sensor to register the gap between the applicator function unit |
| 04/01/1999 | DE19743246A1 Web coating assembly enabling direct and indirect coating e.g. of paper web |
| 03/31/1999 | EP0905318A2 A soft chemi-mechanically embossed absorbent paper product and method of making same |
| 03/31/1999 | CN1212738A Paper making process |
| 03/30/1999 | US5888348 Method for controlling the permeability of a paper |
| 03/25/1999 | WO1999014607A2 High resolution system and method for sheet measurement of travel web |
| 03/25/1999 | WO1999014432A1 Process of making paper |
| 03/25/1999 | CA2300122A1 Process of making paper |
| 03/24/1999 | EP0902855A1 Method of applying a powder coating to a length of a lignocellulosic material |
| 03/23/1999 | US5885659 Inhibits an excess coated part produced in starting and stopping coating; contains a trapping pan |
| 03/23/1999 | US5885350 Coating device for webs of paper or board |
| 03/18/1999 | WO1999013158A1 Method and apparatus for application of a treatment agent to a material web |
| 03/18/1999 | WO1999012655A1 Nozzle apparatus in a spray coating station and a method for changing the mouthpiece |
| 03/18/1999 | DE19740952A1 Web coating applicator |
| 03/18/1999 | CA2303199A1 Method and apparatus for application of a treatment agent to a material web |
| 03/18/1999 | CA2302571A1 Nozzle apparatus in a spray coating station and a method for changing the mouthpiece |
| 03/17/1999 | EP0902119A2 Process for preparing a paper web |
| 03/16/1999 | US5882406 Film applicator with adjustable dynamic extraction flow regulator |
| 03/16/1999 | CA2247542A1 Process for preparing base paper for fine paper |
| 03/16/1999 | CA2247309A1 Method for coating webs |
| 03/02/1999 | US5876792 Methods and apparatus for controlled placement of a polymer composition into a web |
| 03/02/1999 | US5876563 Manufacture of paper |
| 02/25/1999 | WO1999009253A2 Method and device for applying a pigment coating to a strip of paper or cardboard |
| 02/25/1999 | WO1999008784A1 Method for treating a solid material to make it hydrophobic, material obtained and uses |
| 02/23/1999 | US5873940 Coating apparatus having an adjustable head with movable adjusting devices |
| 02/18/1999 | DE19735588A1 Coating a moving web |
| 02/17/1999 | EP0896649A1 Fire retardant treatment |
| 02/17/1999 | CN1208447A Production of filled paper and compositions for use in this |
| 02/17/1999 | CN1208446A Production of filled paper and compositions for use in this |
| 02/16/1999 | CA2122611C A short dwell coater apparatus |
| 02/11/1999 | WO1999005909A1 Anti-bacterial/anti-viral coatings, coating process and parameters thereof |
| 02/10/1999 | EP0896090A1 Process for directly or indirectly applying a fluid or pasty material onto a moving web, in particular of paper or paper board |
| 02/10/1999 | EP0895553A1 Process for surface treatment of material webs, in particular paper and cardboard webs, using adhesive agents |
| 02/10/1999 | EP0895552A1 Process for coating a board- or paper-like substrate with a powder paint composition |
| 02/10/1999 | EP0735925B1 Blade coating machine |
| 02/10/1999 | CN1207786A Method for externally sizing fibrous materials |
| 02/09/1999 | US5869143 Method and device for coating webs of material, particularly paper or cardboard webs |
| 02/09/1999 | US5869131 Process for the simultaneous treatment of the top and bottom sides of a web of paper support |
| 02/04/1999 | DE19733333A1 Applicator of fluid or paste to running web |
| 02/04/1999 | DE19732463A1 On=line paper web coating machine |
| 02/03/1999 | EP0894028A1 Device for application of glue on objects |
| 02/03/1999 | EP0682571B1 Method and apparatus for coating paper or the like |
| 02/02/1999 | US5865953 Drying; applying crack-reducing agent |
| 02/02/1999 | US5865944 Apparatus for directly applying a liquid or pasty medium onto a moving material web |
| 01/28/1999 | WO1999004092A1 Paper products comprising filler materials |
| 01/28/1999 | DE19732138A1 Process for coating moving web of material with liquid or paste |
| 01/28/1999 | DE19731249A1 Web coating applicator |
| 01/28/1999 | CA2296640A1 Paper products comprising filler materials |
| 01/26/1999 | US5863979 Paper making method employing novel beater bag with water dispersable hot melt sealed closure |
| 01/26/1999 | US5863388 Preparing aqueous pulp slurry, adding surfactant consisting of rosin soap, sodium oleate, sodium stearate, sodium palmitate, adding water resistant agent, refining, diluting, forming furnish, hot pressing |
| 01/21/1999 | WO1999002776A1 Coater head |
| 01/21/1999 | DE19730142A1 Doctor rod for smoothing and spreading applied liquid or paste medium to the surface of a moving web, over a roller, and especially of paper or cardboard |
| 01/21/1999 | CA2239927A1 Method of applying chemical sizing agents for making reduced wet-through tissue |
| 01/20/1999 | EP0891444A1 A process for including a fine particulate filler into tissue paper using an anionic polyelectrolyte |
| 01/20/1999 | EP0891443A1 A process for including a fine particulate filler into tissue paper using starch |
| 01/20/1999 | EP0675984B1 Apparatus and method of minimizing skip coating on a paper web |
| 01/14/1999 | WO1999001612A1 Method for minimizing water use in a water circuit in a paper, cellulose or wood factory |
| 01/13/1999 | EP0889998A2 Temporary wet strength paper |
| 01/13/1999 | EP0889994A1 Absorbent material and production thereof |