| Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452) |
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| 07/02/1997 | EP0781885A1 Coating mechanism for directly of indirectly applying a liquid or pasty medium onto a moving web |
| 07/02/1997 | EP0781884A1 Coating mechanism for directly of indirectly applying a liquid or pasty medium onto a moving web |
| 07/02/1997 | EP0781608A2 Applicator device for application of a coating agent onto a moving base |
| 07/02/1997 | EP0713549B1 Coat weight profiling |
| 07/01/1997 | US5643414 Silica sols in papermaking |
| 07/01/1997 | US5643078 Method and system for air-conditioning a coating station for a paper web or equivalent |
| 06/26/1997 | WO1997022754A1 Method for externally sizing fibrous materials |
| 06/26/1997 | DE19547658A1 Paper web coating device useful for preventing self cancellation |
| 06/24/1997 | US5641387 On-line coater apparatus |
| 06/18/1997 | EP0778912A1 Device for coating a material web on both sides |
| 06/17/1997 | US5639303 Apparatus for the application on both sides of a liquid medium onto a moving material web, in particular of paper or cardboard |
| 06/12/1997 | DE19545408A1 Finishing surface of card web for e.g. box manufacture by precoating, pre-calendering and finish coating |
| 06/11/1997 | EP0777785A1 Method and device for coating continuous strips of material, in particular paper or cardboard |
| 06/11/1997 | EP0577590B1 Aluminium-salt impregnated fibres, a method for their manufacture, fluff consisting of such fibres, and the use of the fibres as absorption material |
| 06/10/1997 | US5637197 Process of coating a substrate with reticulated bacterial cellulose aggregates |
| 06/05/1997 | WO1997020106A1 Coater with air collector |
| 06/05/1997 | WO1997020006A2 Transfer belt for applying adhesive and a process for manufacturing same |
| 06/05/1997 | DE19544636A1 Transferbahn zum Auftragen von Haftklebern sowie Verfahren zu ihrer Herstellung Transfer sheet for applying adhesives and methods for their preparation |
| 06/04/1997 | EP0776397A1 Improvements in or relating to application of material to a substrate |
| 05/28/1997 | EP0583437B1 Pressure strip for coating device |
| 05/27/1997 | US5633044 Method and apparatus for spray-coating a paper or board web |
| 05/27/1997 | US5633041 Method of making photographic paper |
| 05/27/1997 | US5632815 Inverted blade metering unit |
| 05/27/1997 | US5632814 Device for applying a coating material to a running web |
| 05/22/1997 | WO1997018351A1 A process for the production of paper |
| 05/22/1997 | DE19648312A1 Flutter detection system for web leaving gap between rollers |
| 05/22/1997 | CA2190446A1 Web flutter detection |
| 05/15/1997 | WO1997017289A1 Synthetic mineral microparticles and retention aid and water treatment systems and methods using such particles |
| 05/15/1997 | DE19541574A1 Device for coating of material webs, especially paper or cardboard |
| 05/15/1997 | CA2236922A1 Synthetic mineral microparticles and retention aid and water treatment systems and methods using such particles |
| 05/14/1997 | EP0773321A2 Assembly for preventing striping in a short dwell time applicator |
| 05/14/1997 | EP0773319A1 Method to enhance the performance of polymers and copolymers of acrylamide as flocculants and retention aids |
| 05/14/1997 | CN1149898A Use of ultrasonics in paper making |
| 05/13/1997 | US5629368 Water, sodium silicate, acrylic polymer |
| 05/09/1997 | WO1997016598A1 Method for enhancing retention in a paper making process, and retention agent therefor |
| 05/09/1997 | WO1997013034A3 Dual chamber film applicator with in-pond overflow |
| 05/09/1997 | CA2189832A1 Method to enhance the performance of polymers and copolymers of acrylamide as flocculants and retention aids |
| 05/07/1997 | EP0771377A1 Painting edge limiter for a painting arrangement with a short residence time |
| 05/07/1997 | EP0771376A1 Method and apparatus for coating pulp products |
| 05/07/1997 | EP0656970B1 Tissue paper treated with nonionic softeners that are biodegradable |
| 05/06/1997 | US5627224 Amphoteric polymers with cyclic dicarboxylic acid anhydride and alkyl ketene dimer and polyaluminum compound |
| 05/02/1997 | EP0770730A1 Method and assembly for coating a paper web |
| 05/01/1997 | WO1997015722A1 Multilayer coating using an application roller |
| 05/01/1997 | CA2234849A1 Multilayer coating using an application roller |
| 04/29/1997 | US5624532 Method for enhancing the bulk softness of tissue paper and product therefrom |
| 04/23/1997 | EP0670004B1 Process and device for coating a travelling material web |
| 04/22/1997 | US5622599 Coating vacuum dewatered, screen supported pulp web with high volume-low velocity atomized spray mist for high transfer efficiency; paper coating |
| 04/22/1997 | CA2046285C Paper manufacturing process, and papers obtainable by means of that process |
| 04/17/1997 | DE19640578A1 High speed manufacture of thermoplastic coated photographic paper |
| 04/16/1997 | EP0768425A2 Prewettable high softness paper product having temporary wet strength |
| 04/16/1997 | EP0721531B1 Improvement in security features for paper |
| 04/16/1997 | EP0663973B1 A coating apparatus |
| 04/16/1997 | EP0652808B1 Process for manufacturing paper webs containing cf or cb layers for pressure sensitive recording paper |
| 04/16/1997 | CN1147842A Process for applying a thin film containing low levels of a functional-polysiloxane and a nonfunctional-polysiloxane to tissue paper |
| 04/15/1997 | US5620510 Swollen starches as papermaking additives |
| 04/10/1997 | WO1997013036A1 Method and apparatus for coating a moving paper or cardboard web |
| 04/10/1997 | WO1997013035A1 Method and apparatus for coating a moving paper or cardboard web |
| 04/10/1997 | WO1997013034A2 Dual chamber film applicator with in-pond overflow |
| 04/08/1997 | US5618387 Adding surfactant to pulp aqueous slurry before a biodegradable, water-resistant agent; refining; adding alum as aggregating agent; forming hot-pressed paperboard |
| 04/02/1997 | EP0765421A1 Lotioned tissue paper |
| 03/27/1997 | WO1997011223A2 Method of creping a paper |
| 03/26/1997 | EP0609228B1 A paper coating system and method |
| 03/26/1997 | CN1145967A Process for production of paper |
| 03/23/1997 | CA2182073A1 A papermaking process utilizing a retention and including a formaldehyde condensate of a naphthalene sulfonic acid salt |
| 03/21/1997 | CA2184660A1 Assembly for preventing striping in a short dwell time applicator |
| 03/19/1997 | EP0763629A1 Process for fire proofing of paper, and machine for making the same |
| 03/19/1997 | EP0763159A1 Method for making paper |
| 03/18/1997 | US5612091 Method and apparatus for controlling the coat profile in coaters based on short dwell time application |
| 03/18/1997 | US5611860 Hydrostatic shear inducing short dwell coater |
| 03/18/1997 | US5611859 Apparatus for coating a strip of paper |
| 03/13/1997 | DE19532920A1 Paper coating machine with simple means for precise breadthways dosing |
| 03/13/1997 | DE19532908A1 Verfahren zum Kreppen von Papier A method for paper creping |
| 03/12/1997 | EP0761878A2 Device for applying fluid or pasty material onto a moving web, in particular paper or board |
| 03/12/1997 | EP0761877A2 Device for applying directly or indirectly fluid or pasty material onto a moving web, in particular paper or board |
| 03/11/1997 | US5609920 Method of and apparatus for coating at least one liquid medium onto a moving material web, in particular of paper or cardboard |
| 03/07/1997 | CA2184942A1 Application unit for the direct or indirect application of a liquid or pasty medium onto a moving material web |
| 03/06/1997 | WO1997008385A1 Film applicator with entrained air removal and surface control |
| 02/26/1997 | CN1143742A Equipment for making strip through paint |
| 02/25/1997 | USRE35460 Adding calcium oxide or hydroxide to cellulosic fibers, contacting with carbon dioxide to provide calcium carbonate loaded within hollow interior and walls |
| 02/25/1997 | US5605605 Process for treating and sizing paper substrates |
| 02/25/1997 | US5605573 Holder for a cradle of a coating bar or for a coating blade |
| 02/18/1997 | US5603767 Apparatus for decreasing skip coating on a paper web |
| 02/13/1997 | WO1997005024A1 Carton having buckle-controlled brim curl and method and blank for forming the same |
| 02/13/1997 | CA2227372A1 Carton having buckle-controlled brim curl and method and blank for forming the same |
| 02/11/1997 | US5601921 Increasing liquid dispersion and fiber absorption |
| 02/11/1997 | US5601530 Having low coefficient of friction |
| 02/06/1997 | WO1997004172A1 Rod holder with separate positionable contact elements for rod metering |
| 02/05/1997 | EP0757129A1 Application system for a device for coating a paper or paperboard sheet |
| 02/04/1997 | US5599393 Metering rod coaters |
| 02/04/1997 | US5599392 Rod holder with separate positionable contact elements for rod metering |
| 02/04/1997 | CA2063927C Creping aid |
| 01/29/1997 | EP0755469A1 Use of ultrasonics in connection with paper making |
| 01/29/1997 | EP0755468A1 Preparation process of paper for increasing filler contents and enhancing scott internal bond strength |
| 01/28/1997 | US5597618 Pressure sensitive adhesive, paper |
| 01/28/1997 | US5597612 Process for the manufacture of paper webs having CF or CB layers for pressure-sensitive recording |
| 01/21/1997 | US5595659 Filter material for removing chlorine from cold water in preparing a human-consumable beverage |
| 01/21/1997 | US5595631 Dispersion of emulsions for sizing in paper webs with anhydride cationic sizing and drying |
| 01/21/1997 | US5595630 Process for the manufacture of paper |
| 01/21/1997 | US5595629 Papermaking process |
| 01/15/1997 | EP0753624A1 Impregnated films for the coating of wooden materials |