| Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452) |
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| 12/04/1997 | WO1997045591A1 Method of applying a powder coating to a length of a lignocellulosic material |
| 12/04/1997 | CA2256679A1 Method of applying a powder coating to a length of a lignocellulosic material |
| 12/03/1997 | EP0809734A1 Method for enhancing the bulk softness of tissue paper and product therefrom |
| 12/03/1997 | EP0809529A1 Filter material for preparing a beverage |
| 12/03/1997 | EP0683831B1 A method to separate cellulose based fibers from each other in water |
| 11/25/1997 | US5691054 Three dimensional macroscopic assemblages of randomly oriented carbon fibrils and composites containing same |
| 11/25/1997 | US5690999 Method and coating device for the coating of a size-press roll, paper or board |
| 11/25/1997 | US5690790 Temporary wet strength paper |
| 11/25/1997 | US5690741 Arrangement for impregnating webs of porous material |
| 11/20/1997 | DE19633766C1 Application of coating to both sides of a paper web |
| 11/19/1997 | EP0807711A2 Device for applying directly or not a fluid or a pasty substance onto a moving web |
| 11/19/1997 | EP0807710A1 Process and device for direct or indirect application of a liquid or pasty media on a running material web,in particularly of paper or board |
| 11/19/1997 | EP0807279A1 Method and apparatus for applying thin fluid coating stripes |
| 11/19/1997 | EP0807194A2 Soft tissue paper containing an oil and a polyhydroxy compound |
| 11/18/1997 | US5688325 Coating device for traveling webs |
| 11/12/1997 | EP0704007B1 Non-polluting process for increasing the wet strength of paper |
| 11/11/1997 | US5685909 Device for producing paper webs coated on both sides |
| 11/06/1997 | WO1997041303A1 Fire retardant treatment |
| 11/06/1997 | WO1997041302A1 Rosin-sized paper composition and method of making |
| 11/06/1997 | WO1997041300A1 Process for surface treatment of material webs, in particular paper and cardboard webs, using adhesive agents |
| 11/06/1997 | WO1997036053A3 Temporary wet strength paper |
| 11/06/1997 | DE19616733A1 Verfahren zur thermisch-mechanischen Oberflächenbehandlung von flächenförmigen Materialbahnen, insbesondere aus Papier und Karton, und Mittel zur Durchführung des Verfahrens Process for thermomechanical surface treatment of sheet-like material webs, in particular paper and cardboard, and means for carrying out the method |
| 11/06/1997 | CA2253302A1 Fire retardant treatment |
| 11/06/1997 | CA2253191A1 Process for the thermomechanical surface treatment of flat webs of material, particularly those made of paper and carton, by using adhesive agents |
| 11/05/1997 | EP0805234A2 Improved papermaking process |
| 11/05/1997 | EP0804292A1 Method and apparatus for coating substrates using an air knife |
| 11/05/1997 | EP0717802A4 A process for making a paper based product employing a polymeric latex binder |
| 11/05/1997 | EP0713547A4 A process for making a paper based product containing a binder |
| 11/04/1997 | US5683510 Coater with air collector |
| 11/04/1997 | US5683509 Apparatus for applying a liquid or pasty medium onto a moving material web |
| 10/29/1997 | EP0803608A1 Improved method and apparatus for pressure saturation of substrate |
| 10/29/1997 | EP0803012A1 Tissue paper treating agent, process for producing tissue paper by using said treating agent and its use |
| 10/28/1997 | US5681618 Method for applying coating to paper web including successive doctoring steps |
| 10/23/1997 | WO1997039189A1 Method for imparting strength to paper |
| 10/23/1997 | WO1997038797A1 Device for application of glue on objects |
| 10/22/1997 | EP0801701A1 Coating device and process thereat |
| 10/22/1997 | EP0749508A4 Improved paper making process |
| 10/22/1997 | CA2203200A1 Improved method and apparatus for pressure saturation of substrate |
| 10/15/1997 | EP0800598A1 Process of manufacture for a coloured fibre material, containing a certain proportion of cellulose fibres, such as paper and nonwoven, and a coloured fibre material manufactured according to the process |
| 10/15/1997 | EP0800597A1 Method for enhancing retention in a paper making process, and retention agent therefor |
| 10/15/1997 | EP0611329A4 Multiple coat measurement and control. |
| 10/14/1997 | US5676796 Manufacture of paper |
| 10/09/1997 | WO1997037081A1 A process for including a fine particulate filler into tissue paper using an anionic polyelectrolyte |
| 10/09/1997 | WO1997037080A1 A process for including a fine particulate filler into tissue paper using starch |
| 10/09/1997 | CA2250851A1 A process for including a fine particulate filler into tissue paper using starch |
| 10/09/1997 | CA2250842A1 A process for including a fine particulate filler into tissue paper using an anionic polyelectrolyte |
| 10/08/1997 | EP0799934A1 Process and apparatus for applying a CB coat on a paper web |
| 10/08/1997 | CN1161724A Improvement in or relating to application of material to a substrate |
| 10/07/1997 | US5674551 Method and apparatus for coating a moving paper web |
| 10/07/1997 | US5674513 Preparing the protective coating solution by mixing a polyvinylpyrrolidone-iodine complexes, nonoxynol 9, water, polyoxyethylene glycol, alcohol and a polyethylene glycol sorbitan fatty acid ester surfactant |
| 10/02/1997 | WO1997036053A2 Temporary wet strength paper |
| 10/02/1997 | WO1997036049A1 Process for coating a board- or paper-like substrate with a powder paint composition |
| 10/02/1997 | WO1997036047A1 Absorbent material and production thereof |
| 10/02/1997 | CA2250177A1 Temporary wet strength paper |
| 10/02/1997 | CA2240130A1 Absorbent material and production thereof |
| 09/30/1997 | US5672249 Process for including a fine particulate filler into tissue paper using starch |
| 09/24/1997 | EP0796662A2 Method and apparatus for application of fluent material to a moving substrate |
| 09/23/1997 | US5670021 Process for production of paper |
| 09/18/1997 | WO1997034049A1 Method and device for treating boards |
| 09/18/1997 | DE19609807A1 Impregnating paper with hydrophilic substance |
| 09/17/1997 | EP0795057A1 Soft and creped tissue paper |
| 09/17/1997 | EP0705368B1 Reduction of openness of materials |
| 09/12/1997 | WO1997033042A1 Reverse feed film applicator |
| 09/12/1997 | WO1997033041A1 Clay compositions and their use in paper making |
| 09/12/1997 | WO1997033040A1 Activation of swelling clays and processes of using the activated clays |
| 09/10/1997 | EP0794287A1 Method and assembly for coating a moving web |
| 09/10/1997 | EP0794013A1 Installation for preparation and delivery of a coating composition to a paper coating head or the like |
| 09/10/1997 | EP0743996B1 Paper coating device |
| 09/10/1997 | EP0715667B1 A short dwell coater apparatus |
| 09/10/1997 | EP0701641B1 Method for applying an adhesive, applicator device and product |
| 09/10/1997 | EP0690938B1 A method for fiber loading a chemical compound |
| 09/09/1997 | US5665163 Film applicator with entrained air removal and surface control |
| 09/04/1997 | WO1997032074A2 Method of preparing a sheet of a lignocellulosic material for the manufacture of a finished product and method of manufacture of a finished product |
| 08/28/1997 | WO1997031152A1 Sizing of paper |
| 08/27/1997 | EP0791686A1 Assembly for preventing the plugging of a coater nozzle |
| 08/27/1997 | EP0791685A2 Procedure for adding a filler into a pulp based on cellulose fibres |
| 08/27/1997 | CN1158162A Deposition sensing method and apparatus |
| 08/26/1997 | US5660631 Renewable flexible band doctoring device |
| 08/21/1997 | WO1997030222A1 Production of filled paper and compositions for use in this |
| 08/21/1997 | WO1997030220A1 Production of filled paper and compositions for use in this |
| 08/21/1997 | WO1997030219A1 Production of filled paper and compositions for use in this |
| 08/20/1997 | EP0790351A2 Papermaking process using multi-polymer retention and drainage aid |
| 08/20/1997 | EP0627978B1 Manufacturing process for products, in particular panels, made of insulating material, and product obtained by such process |
| 08/19/1997 | US5658378 Method of paper sizing using modified cationic starch |
| 08/14/1997 | WO1997029239A1 Method in film transfer coating and equipment intended for carrying out the method |
| 08/14/1997 | WO1997029238A1 Wet end starch application |
| 08/14/1997 | DE19604907A1 Process for forming abrasion resistant sheet used for e.g. floor coverings |
| 08/14/1997 | CA2180371A1 Production of filled paper and compositions for use in this |
| 08/06/1997 | EP0787857A1 Device for coating a moving web, in particular paper or board |
| 07/29/1997 | US5651862 Wet-formed absorbent composite |
| 07/24/1997 | WO1997026408A1 Method for marking paper and apparatus for detected marked paper |
| 07/23/1997 | CN1155309A Lotioned tissue paper |
| 07/22/1997 | US5650200 Method and apparatus for controlling the thickness of a coating applied to a moving web |
| 07/22/1997 | US5650010 Apparatus for two-side coating of a thin printing paper web containing mechanical pulp or recycled fiber |
| 07/16/1997 | EP0784120A2 Method and apparatus for coating a paper web |
| 07/16/1997 | CN1154430A Anti-counterfeit and coated white card paper and process for producing same |
| 07/15/1997 | US5647909 Apparatus for applying coating to paper web including successive doctoring steps |
| 07/09/1997 | EP0783053A1 Coating device for applying directly or indirectly a fluid or a pasty material on to a moving web |
| 07/08/1997 | US5645731 Aqueous suspensions of poly(ethylene oxide) useful as a flocculent |
| 07/03/1997 | WO1997020006A3 Transfer belt for applying adhesive and a process for manufacturing same |