| Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452) |
|---|
| 10/04/1990 | WO1990011141A1 Sizing of cellulose fibers |
| 10/04/1990 | WO1990011136A1 A coater apparatus |
| 10/03/1990 | CA2013618A1 High quality extrusion coated paper |
| 09/25/1990 | US4959125 Soft tissue paper containing noncationic surfactant |
| 09/20/1990 | CA2012525A1 Sizing of cellulose fibers |
| 09/19/1990 | EP0387412A2 Process and device for coating webs, particularly paper or cardboard webs |
| 09/13/1990 | DE3906070A1 Method and device for coating a web material with an adhesive solution, and application |
| 09/05/1990 | EP0385640A2 Process for applying microcapsule-containing compositions to paper |
| 09/05/1990 | CN1009440B Coating apparatus |
| 09/04/1990 | US4954373 Fibrous substrates containing hot melt coatings made from a novel petroleum wax |
| 08/29/1990 | EP0384268A1 Process for the fixation of impurities in paper making |
| 08/29/1990 | EP0384038A1 A composite flooring felt for vinyl flooring containing latexes and an activator and a process for preparing the same |
| 08/28/1990 | US4952280 Measuring flocculation; automatic; computers |
| 08/23/1990 | CA2010751A1 Process for applying microcapsule-containing compositions to paper |
| 08/14/1990 | WO1990009483A1 Paper manufacturing process, and papers obtainable by means of that process |
| 08/08/1990 | CN1044420A Inverted blade metering unit and method for blade-coating material web |
| 08/07/1990 | US4946101 Atomizer |
| 08/07/1990 | US4945855 Coater |
| 08/02/1990 | DE3915858C1 Applying moisturiser and/or glue band to web - in contactless manner in transverse direction |
| 08/01/1990 | CN1044239A Apparatus for controlling tilt angle of doctor blade |
| 07/31/1990 | US4944960 Forming fog from coating slurry; supplying through nozzle |
| 07/26/1990 | WO1990008223A1 Method for fabricating paper for bottle labels |
| 07/25/1990 | CN1044068A Waterproof recording material having ground patterns and its manufacturing method |
| 07/24/1990 | US4942674 Method in the drying of a paper web or equivalent |
| 07/18/1990 | EP0377653A1 Thermosetting size press composition |
| 07/10/1990 | US4940513 Process for preparing soft tissue paper treated with noncationic surfactant |
| 07/10/1990 | US4940512 Cross-directional distribution of additives in synthetic papers |
| 07/04/1990 | EP0376207A2 Application device |
| 07/03/1990 | US4938412 Manufacture of colored egg packages |
| 06/27/1990 | EP0374930A2 Waterproof recording material having ground patterns and its manufacturing method |
| 06/27/1990 | EP0374196A1 Method of reducing pitch in pulping and papermaking |
| 06/26/1990 | US4937099 Coating method and coating slip for substantially inorganic fibrous material |
| 06/21/1990 | CA2006007A1 Waterproof recording material having ground patterns and its manufacturing method |
| 06/20/1990 | EP0373306A2 Colloidal composition and its use in the production of paper and paperboard |
| 06/20/1990 | EP0373276A1 Process and apparatus for continuously spraying adjuvants on porous webs during their movement |
| 06/14/1990 | WO1990006342A1 Composite fiberboard and process of manufacture |
| 06/14/1990 | WO1990006184A1 Procedure and means for coating a paper web in at least two steps |
| 06/13/1990 | EP0372731A2 Paper coating |
| 06/13/1990 | EP0372710A2 Paper coating |
| 06/13/1990 | DE3841494A1 Spreading shaft for the volumetric metering of coating material |
| 06/07/1990 | DE3840610A1 Device for two-sided coating of material webs, in particular of paper webs |
| 06/06/1990 | EP0215044B1 Method for preparing a fibrous sheet by using paper manufacturing techniques |
| 06/05/1990 | US4930437 Coating device for paper webs having a coating application space subdivided by a vane |
| 05/29/1990 | US4929474 Method of making high quality extrusion coated paper for quality printing |
| 05/23/1990 | EP0209538B1 Process for manufacture of paper holding clay or other fillers |
| 05/22/1990 | US4927496 Container for consummable liquids |
| 05/18/1990 | CA2000603A1 Method for compensation of doctor blade deflection and a deflection-compensated doctor blade |
| 05/16/1990 | EP0367772A1 Method and apparatus for coating a paper web. |
| 05/15/1990 | US4925530 Fillers and papermaking fibers treated with charged polymers separately |
| 05/09/1990 | EP0366764A1 Processes for the production of paper and paper board. |
| 05/08/1990 | US4923565 Method for treating a paper pulp with an enzyme solution |
| 05/03/1990 | DE3836919A1 Coating device, in particular size press |
| 05/01/1990 | US4920914 Doctoring installation and doctoring device |
| 04/25/1990 | EP0364634A1 Method of producing a support for photographic paper |
| 04/10/1990 | US4915989 Gas receiving belt between substrate and saturating element removes gases and excess saturant and protects mandrel |
| 04/05/1990 | WO1990003225A1 Method and apparatus for coating paper and the like |
| 04/04/1990 | EP0362174A1 Coating device |
| 04/03/1990 | US4913775 Production of paper and paper board |
| 03/27/1990 | US4911790 Adding cationic, high molecular weight polysaccharides |
| 03/22/1990 | WO1990002611A1 Pressure saturator and method |
| 03/20/1990 | US4910066 Applying anionic acrylic copolymer and water; drying |
| 03/13/1990 | US4907531 Drawdown machines |
| 03/13/1990 | US4907529 Apparatus for controlling the tilt angle of a doctor blade |
| 03/13/1990 | CA1266730A1 Papermaking aid |
| 02/28/1990 | EP0355734A2 Cross-directional distribution of additives in synthetic papers |
| 02/27/1990 | US4904440 Apparatus for and methods of airlaying fibrous webs having discrete particles therein |
| 02/20/1990 | US4902382 Process for producing a neutral paper |
| 02/13/1990 | US4900583 Electrically heating using light source |
| 02/13/1990 | CA1265712A1 Impregnated corrugated sheets for packing boxes and method of manufacture |
| 02/06/1990 | US4898752 Method for making coated and printed packaging material on a printing press |
| 02/01/1990 | DE3922535A1 Application device for the coating of running product webs and method for coating |
| 01/31/1990 | EP0352582A2 Application device for coating moving webs, and coating process |
| 01/31/1990 | EP0352465A2 Application device for coating moving webs, and coating process |
| 01/23/1990 | CA1264615A1 Blade coater |
| 01/18/1990 | DE3823742A1 Colour specimen substrates, in particular for special-effect coatings containing special-effect substance particles, process for producing colour specimen substrates and apparatus for carrying out the process |
| 01/17/1990 | CN2051238U Double-side bridge type coating machine |
| 01/16/1990 | CA1264428A1 Process and an apparatus for the continuous application of an even coating to a strip of material, in particular paper or cardboard, that passes over a counter roller |
| 01/10/1990 | EP0349860A2 Process for controlling the addition of retention agent during papermaking |
| 01/10/1990 | CN1038678A Process for production of paper |
| 12/27/1989 | EP0348366A2 A process for the production of paper |
| 12/27/1989 | EP0348127A2 Process for sizing paper and similar products |
| 12/27/1989 | EP0235166B1 Device for applying a liquid to a material web |
| 12/26/1989 | US4889594 Flocculating with inorganic filler and retention agent, anionic or cationic |
| 12/20/1989 | EP0347177A2 Process for preparing soft tissue paper treated with nonionic surfactant |
| 12/20/1989 | EP0347176A2 Soft tissue paper containing noncationic surfactant |
| 12/20/1989 | EP0347154A2 Soft tissue paper |
| 12/20/1989 | EP0347153A2 Process for preparing soft tissue paper treated with a polysiloxane |
| 12/19/1989 | US4888231 Absorbent core having a dusting layer |
| 12/13/1989 | EP0345670A2 Spray head for a nozzle humidifier, and method for humidifying |
| 11/29/1989 | EP0343850A2 Absorbent structures from mixed furnishes |
| 11/23/1989 | EP0343139A2 Method and aparatus for forming a dry web on the wire |
| 11/08/1989 | EP0340362A1 Containerboard and a method for its production |
| 11/02/1989 | WO1989010447A1 Processes for the production of paper and paper board |
| 10/18/1989 | EP0337310A1 Poly(vinyl alcohol-vinylamine)copolymers for improved moist compressive strength of paper products |
| 10/18/1989 | CN1036344A Method of in-line production of successive barrier and silicone-coated inexpensive porous and absorbent paper and similar substrates |
| 10/17/1989 | US4873939 Short-dwell coater for coating a web with coating mix |
| 10/12/1989 | DE3810085A1 Reinigungsvorrichtung fuer eine walze Cleaning device for a roll |
| 10/04/1989 | EP0335576A2 Pulp dewatering process |
| 10/04/1989 | EP0335575A2 Production of paper and paper board |
| 09/27/1989 | EP0334739A1 Process for manufacturing papers and boards from recycled fibres which have been treated with enzymes |