| Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452) |
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| 09/23/1999 | WO1999047095A1 Fluted composite and related absorbent articles |
| 09/23/1999 | WO1999047094A1 Methods for forming a fluted composite |
| 09/23/1999 | CA2324018A1 Fluted composite and related absorbent articles |
| 09/23/1999 | CA2323998A1 Methods for forming a fluted composite |
| 09/22/1999 | EP0943036A1 Method for making wet strength paper |
| 09/22/1999 | EP0943035A1 A process for the production of paper |
| 09/22/1999 | CN1229448A Chemically enhanced multi-density paper structure and method for making same |
| 09/21/1999 | US5954923 Electromagnetic field perturbation sensor and methods for measuring water content in sheetmaking systems |
| 09/16/1999 | WO1999046117A1 Sheet having powder coated thereon, and production and use thereof |
| 09/15/1999 | EP0941386A1 Production of paper and paper board |
| 09/15/1999 | EP0941383A1 Manufacture of paper |
| 09/10/1999 | WO1999045203A1 Method and arrangement for coating a moving web of paper or board |
| 09/10/1999 | WO1999045202A1 Improved papermaking processes |
| 09/10/1999 | WO1999045201A1 Method for improved wet strength paper |
| 09/08/1999 | EP0939847A1 Method for manufacturing a metallized paper material |
| 09/08/1999 | EP0853585A4 Carton having buckle-controlled brim curl and method and blank for forming the same |
| 09/08/1999 | CN1227886A Method for reducing thermal and light-induced brightiness reversion in light-containing pulps |
| 09/07/1999 | US5948477 Coating apparatus and method to directly or indirectly apply a liquid or pasty medium onto a moving layer of material |
| 09/07/1999 | CA2167856C Method for producing surface-treated paper and dry end of a paper machine |
| 09/07/1999 | CA1340724C Process for treating a paper pulp with an enzymatic solution |
| 09/02/1999 | WO1999043887A1 Method and apparatus for feeding a chemical into a liquid flow |
| 09/02/1999 | DE19814212C1 Apparatus to apply an abrasive coating mass to a moving paper web surface |
| 09/01/1999 | EP0938385A1 Procedure and apparatus for transferring of addition to the surface of a movable material web |
| 08/31/1999 | US5944898 Apparatus for successive application of two coats of liquid or pasty medium on one side of a traveling web of material |
| 08/26/1999 | DE19807001A1 Moving web surface coating station for coating paper or cardboard |
| 08/25/1999 | EP0937815A1 Apparatus and process for applying a liquid or pasty medium onto a moving web, in particular of paper or board |
| 08/25/1999 | EP0840825B1 Rod holder with separate positionable contact elements for rod metering |
| 08/24/1999 | US5942087 Preflocculating granular starch with an aqueous solution containing cellulosic fibers and a flocculant prior to the introduction of the preflocculated mixture to either the white water, thick stock or thin stock |
| 08/24/1999 | US5942086 Addition of a cationic polymer capable of insolubilising a later added anionic polymer capable of hydrogen bonding, addition of an anionic polymer capable of hydrogen bonding with the substrate, forming paper from the resulting slurry |
| 08/19/1999 | WO1999041454A1 Method for disacidifying paper products with printings or inscriptions |
| 08/19/1999 | CA2260419A1 Apparatus and process for applying liquid or viscid coating medium onto a coating area of a moving substrate |
| 08/18/1999 | EP0936310A2 Production of paper and board products with improved retention, drainage and formation |
| 08/18/1999 | EP0936309A2 Improved starch retention in paper and board production |
| 08/18/1999 | EP0936308A2 A drying section apparatus |
| 08/18/1999 | EP0935696A1 Method and arrangement for coating a moving paperboard web |
| 08/18/1999 | CN1226301A Method of applying powder coating to length of lignocellulosic material |
| 08/11/1999 | EP0934444A1 Tissue paper containing cationic amidoamine compounds |
| 08/11/1999 | EP0864012B1 Coater with air collector |
| 08/11/1999 | EP0853705B1 Dual chamber film applicator with in-pond overflow |
| 08/11/1999 | EP0828890B1 Paper finishing process using polyisocyanates with anionic groups |
| 08/10/1999 | US5935383 Method for improved wet strength paper |
| 08/10/1999 | US5935332 Plant for preparing and feeding a coating composition to a coating head for paper or the like |
| 08/10/1999 | CA2140597C Method and apparatus for producing barrier packaging |
| 08/05/1999 | WO1999038904A1 Biodegradable and biocompatible agricultural mulch and method of preparing same |
| 08/04/1999 | EP0933674A2 Curtain coater |
| 08/04/1999 | EP0932498A1 Paper coated with polylactide and a method for making it |
| 07/29/1999 | DE19821854C1 Appts to suppress contact oscillations between rollers in paper coating or printing etc |
| 07/28/1999 | EP0931878A2 Fountain coating applicator |
| 07/27/1999 | US5928475 High-speed under wire water weight detectors with a scanning system for accurate measuring of the entire sheet; cross-directional profiles obtained instantaneously to completely decouple with machine-direction variations; papermaking |
| 07/27/1999 | US5928473 Inhibition of photo-yellowing in paper |
| 07/27/1999 | US5928471 Security features for paper |
| 07/22/1999 | WO1999036618A1 Moisture barrier paper and process for making the same |
| 07/21/1999 | EP0930397A1 Apparatus and process for applying a liquid or pasty medium onto a moving web, in particular of paper or board |
| 07/21/1999 | EP0930396A2 Process and apparatus for applying a liquid or a pasty product onto a moving web |
| 07/15/1999 | WO1999035333A1 Improved papermaking processes |
| 07/13/1999 | US5922407 Onto one side of moving web and contactless deflection of webalong a curved path of motion ensues; side of web providedwith liquid or paste passing through a concave curvature; paper, cardboard |
| 07/13/1999 | US5922128 Applicator device for coating running webs |
| 07/08/1999 | WO1999034059A1 Method for making a cellulosic web with improved wet-tensile strength |
| 07/08/1999 | WO1999034057A1 Paper products and methods for applying chemical additives to cellulosic fibers |
| 07/08/1999 | CA2316876A1 Method for making a disposable absorbent web with improved wet-tensile strength |
| 07/07/1999 | EP0927280A1 Method of enhancing strength of paper products and the resulting products |
| 07/07/1999 | CN1222210A Process for surface treatment of material webs, in particular paper and cardboard webs, using adhesive agents |
| 07/06/1999 | US5919524 Blade metering unit and method for blade-coating a material web |
| 07/06/1999 | CA2070613C Method of manufacturing coated paper for printing |
| 07/01/1999 | WO1999032721A1 Profiling wet end starch applicator |
| 07/01/1999 | DE19755625A1 Schlitzdüse zum Beschichten von Materialbahnen, insbesondere Papier- oder Kartonbahnen mit Pigmentstreichfarbe Slot for coating material webs, in particular paper or cardboard sheets with pigment coating |
| 07/01/1999 | CA2313145A1 Profiling wet end starch applicator |
| 06/30/1999 | EP0803012B1 Process for producing tissue paper by using a treating agent |
| 06/30/1999 | CN1043914C Method for reducing thermal and light-induced brightness reversion in lign in-containing pulps |
| 06/30/1999 | CA2255217A1 Method and apparatus for making a softer, more absorbent no press, no crepe towel |
| 06/24/1999 | WO1999031321A1 Slit nozzle for coating strips of material, especially paper or board strips, with a pigment coating |
| 06/24/1999 | WO1999031320A1 Dull cast-coated paper and method for manufacturing thereof |
| 06/24/1999 | DE19757678A1 Web coating applicator for paper or cardboard |
| 06/24/1999 | DE19755724C1 Mattes gußgestrichenes Papier und Verfahren zu seiner Herstellung Matte cast-coated paper and methods for its preparation |
| 06/23/1999 | EP0924342A2 Packaging materials |
| 06/22/1999 | US5914155 Method and applicator for direct or indirect application of a liquid or pasty coating medium onto a traveling material web, notably of paper or cardboard |
| 06/19/1999 | CA2256818A1 Packaging materials |
| 06/17/1999 | WO1999029958A1 Coating station and coating method |
| 06/17/1999 | DE19754684A1 Device for application of fluid or paste medium, especially adhesive |
| 06/15/1999 | CA2136959C Aqueous compositions for sizing of paper |
| 06/10/1999 | DE19754024A1 Rotating roller continuously coating sheet material with polyurethane precursor |
| 06/09/1999 | EP0921230A2 A paper based product |
| 06/08/1999 | US5910622 Improving surface properties of paper by applying cationic aqueous solution containing heterocyclic polyhydroxy compound, choline chloride, crosslinking catalyst, heating to remove water, further heating to crosslink paper fibers, cooling |
| 06/03/1999 | WO1999027183A1 Method and equipment for controlling properties of paper |
| 06/03/1999 | WO1999027182A1 Method and equipment for controlling properties of paper |
| 06/02/1999 | EP0919665A2 Apparatus for applying indirectly a liquid or pasty medium onto a moving web, in particular of paper of board |
| 06/02/1999 | EP0918904A1 Compositions for coating sheet materials |
| 06/02/1999 | EP0918571A1 Vortex-free coating device for traveling webs |
| 05/27/1999 | WO1999025923A1 Method and apparatus for processing a discontinuous coating on a substrate |
| 05/27/1999 | CA2308488A1 Method and apparatus for processing a discontinuous coating on a substrate |
| 05/25/1999 | US5906713 Method of preparing biodegradable, water-resistant, and molded paper board |
| 05/25/1999 | US5906712 Production of fiber reinforced composite |
| 05/21/1999 | CA2254387A1 Device used to indirectly apply a liquid or viscous medium onto a material web, specifically a paper or cardboard web |
| 05/20/1999 | WO1999016973A3 Surface sizing of paper |
| 05/19/1999 | EP0916765A1 Method and assembly for separating foreign material away from the machine circulation of coating mix in a coating station |
| 05/19/1999 | EP0916763A2 Method for producing surface-treated paper and dry end of a paper machine |
| 05/18/1999 | US5904810 Tissue containing cationic amidoamine compounds |
| 05/18/1999 | US5904775 Method and device for applying a coating agent onto a moving base |
| 05/14/1999 | WO1999023308A1 High speed coating apparatus and method |
| 05/14/1999 | WO1999009253A3 Method and device for applying a pigment coating to a strip of paper or cardboard |