| Patents for D21H 25 - After-treatment of paper not provided for in groups (4,291) |
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| 01/13/1994 | DE4220603A1 Rakelstab Metering rod |
| 01/11/1994 | US5277842 Solvents for agents to mass deacidify books and other paper products in an environmentally safe manner |
| 01/11/1994 | CA2021941C Method of manufacturing a compressibility gradient in paper |
| 01/11/1994 | CA1325926C Foam saturation and release coating of a fibrous substrate |
| 01/06/1994 | WO1994000637A1 Doctor bar |
| 01/06/1994 | CA2116432A1 Doctor bar |
| 01/05/1994 | EP0576553A1 A method of densifying crosslinked fibers. |
| 01/05/1994 | CN1080339A Method for embossing webs |
| 01/04/1994 | US5275846 Drying pigment coating; plasticizing; pressing |
| 12/28/1993 | CA1325585C Tearable nonwoven webs and products employing same |
| 12/23/1993 | WO1993025305A1 Mass cellulose deacidification process |
| 12/15/1993 | EP0521896B1 Photographic reflection print material with improved keeping properties |
| 11/25/1993 | WO1993023620A1 Process for preparing strong aromatic polyamide papers of high porosity |
| 11/23/1993 | US5264247 Process for the manufacture of a coating bar for a bar coater |
| 11/23/1993 | US5264243 Metal alkoxyalkoxides |
| 11/16/1993 | US5262208 Gas plasma treatment for archival preservation of manuscripts and the like |
| 11/11/1993 | WO1993022134A1 Method of measuring and controlling adhesion/release of a paper web which is removed by a doctor blade from a yankee cylinder and a web tension gauge |
| 11/11/1993 | CA2134661A1 Method of measuring and controlling adhesion/release of a paper web which is removed by a doctor blade from a yankee cylinder and a web tension gauge |
| 11/09/1993 | US5260023 System and method for preserving acid-containing articles |
| 10/27/1993 | EP0566775A1 Method and apparatus for making an embossed web and product obtained therefrom |
| 10/21/1993 | DE4313889A1 Paper web coating blade - has a reflected for light beam as monitor for control of blade pressure bar setting |
| 10/20/1993 | EP0566284A2 Method for producing a delignified papermaking fiber from recycled, high lignin content, waste paper and product thereof |
| 10/19/1993 | US5254399 Good sheet formation; texture, strength, softness; three-dimensionally entangled |
| 10/19/1993 | CA1323236C Embossed paper having alternating high and low strain regions |
| 10/13/1993 | EP0564947A1 Article and method for preserving an archival article |
| 10/13/1993 | CN1077238A Method for making women's sanitary paper |
| 10/12/1993 | US5252275 Method of densifying crosslinked fibers |
| 10/11/1993 | CA2093093A1 Method for coating a material web |
| 10/07/1993 | CA2234143A1 Blade-coated paper and method of preparation thereof |
| 09/29/1993 | EP0562322A1 Process for producing a decay-resistant paper for the manufacture of a pot for raising and transplanting seedlings |
| 09/21/1993 | US5246497 Coating device for coating of a size-press roll, paper or board |
| 09/16/1993 | WO1993018229A1 Polyether-reinforced fiber-based materials |
| 09/16/1993 | WO1993017795A1 Pressure strip for coating device |
| 09/16/1993 | DE4207731A1 Abstuetzleiste fuer eine beschichtungsvorrichtung Support bar for a coating device |
| 09/16/1993 | CA2102287A1 Pressure strip for coating device |
| 09/15/1993 | EP0560087A1 Method for the stabilization of solutions of ethylmagnesium-carbonate in ethanol |
| 09/15/1993 | EP0559797A1 Isocyanate modified cellulose products and method for their manufacture |
| 09/13/1993 | CA2090173A1 Process for the stabilization of ethanolic ethylmagnesium carbonate solutions |
| 08/31/1993 | US5240764 Wet-laying a mixture of fusible and non-fusible staple length fibers; bonding the web to melt the fusible fibers |
| 08/25/1993 | EP0551360A4 Vaccum metallization of substrates |
| 08/12/1993 | DE4302435A1 Paper web coating appts. - has smoother against side of web in free path after leaving gap between applicator rollers |
| 08/05/1993 | DE4308302A1 Coating scraper assembly - has bed exchange action without discarding holding blades and without dismantling |
| 08/05/1993 | DE4202320A1 Impregnating substrate by contact with supercritical fluid contg. impregnant - followed by conversion of fluid to subcritical state |
| 08/03/1993 | US5232535 Process for preparing embossed, coated paper |
| 07/22/1993 | WO1993014264A1 Method and apparatus for crosslinking individualized cellulose fibers |
| 07/22/1993 | WO1993014261A1 Method for crosslinking individualized cellulose fibres |
| 07/22/1993 | WO1993013940A1 Recyclable polymeric synthetic paper and method for its manufacture |
| 07/22/1993 | DE4243721A1 Electro-erosive micro perforation of highly porous filter paper line - carried out so that paper lines are forced to undergo additional electro-erosive micro perforations to increase air and/or water permeability to reach desired value |
| 07/22/1993 | CA2128015A1 Method and apparatus for crosslinking individualized cellulose fibers |
| 07/21/1993 | EP0551360A1 Vaccum metallization of substrates |
| 07/20/1993 | US5229212 Reduced penetration |
| 07/20/1993 | US5228920 Film coating unit |
| 07/08/1993 | WO1993013264A1 Lining material, method for coating a material for producing a lining, and apparatus |
| 07/08/1993 | CA2126194A1 Lining material, method for coating a material for producing a lining, and apparatus |
| 07/07/1993 | EP0550355A1 Synthetic papers from thermostable fibres, pulp, binder and process of preparation thereof |
| 07/07/1993 | EP0543810A4 Isocyanate modified cellulose products and method for their manufacture |
| 06/30/1993 | EP0231195B1 Process for impregnating a planar compressible carrier material with synthetic resin, as well as device for working this process |
| 06/30/1993 | CN1073581A Moth-proofing agent for archives and books and its preparation method |
| 06/29/1993 | US5223094 Process for preparing strong aromatic polyamide papers of high porosity |
| 06/29/1993 | US5223093 Fibrous tape base material |
| 06/29/1993 | US5223092 Sheet of paper cover stock material with one textured surface and one smooth surface; book and wall coverings |
| 06/22/1993 | US5221557 V-groovable gravure printable paper |
| 06/16/1993 | CN1073229A Anti-static wall paper |
| 06/15/1993 | US5219618 Supplying fluid to area bound by web and doctor |
| 06/15/1993 | US5219524 Article in contact with alkaline substrate hermetically sealed in transparent container in oxygen-free gaseous atmosphere |
| 06/10/1993 | WO1993011301A1 Cellulosic fibrous structures having pressure differential induced protuberances and a process of making such cellulosic fibrous structures |
| 06/10/1993 | WO1993011299A1 Cardboard with coating on one side |
| 06/10/1993 | CA2124576A1 Cardboard with coating on one side |
| 06/09/1993 | EP0545180A1 Neutralization composition for effectively and gently deacidifying books and other paper articles |
| 06/08/1993 | US5217752 F.P. system for manual restoration |
| 06/02/1993 | EP0543810A1 Isocyanate modified cellulose products and method for their manufacture |
| 06/01/1993 | US5215626 Wet-laying cellulose fibers to form webs, drying, creping and applying polysiloxane material and surfactant to hot creped webs; balanced softness against tensile strength |
| 05/27/1993 | DE4141133C1 Support beam for doctor blade bearing on dry cylinder - comprises elongated hollow body having 2 or more convex curved longitudinal walls and composed of composite fibre material e.g. carbon@ fibres |
| 05/27/1993 | CA2083549A1 Neutralizing agent for paper products |
| 05/26/1993 | EP0543372A1 Water-in-oil emulsions and their use in paper treatment |
| 05/25/1993 | CA1318125C Method and device in on-machine coating-drying of a paper web or equivalent |
| 05/21/1993 | CA2083460A1 Water-in oil emulsions and their use in paper treatment |
| 05/12/1993 | EP0541502A1 Method and equipment for keeping the coating rod and the rod cradle in a bar coater clean and for prevention of leakage of the lubrication and/or cooling water |
| 05/11/1993 | US5209965 Fabrics, cured waterproof polysiloxane |
| 05/04/1993 | US5208072 Mass treatment of cellulosic materials |
| 05/04/1993 | US5207871 Process for making transparent paper using a UV curable compositions of maleate, vinyl monomer and an allyl compound |
| 04/28/1993 | CN1071477A Process and apparatus for manufacturing typing wax paper by water seasoning |
| 04/21/1993 | EP0537890A1 Apparatus and method for providing a coating on a substrate |
| 04/20/1993 | US5204173 Paperboard product and process |
| 04/15/1993 | WO1993007337A1 Polyurea-reinforced fiber-based materials |
| 04/15/1993 | CA2120524A1 Polyurea-reinforced fiber-based materials |
| 04/13/1993 | US5202150 Applying a solid phase change material over porous nonmetallic construction material, melting phase change material by exposing to microwave energy and it immediately absorbed into pores of porous material |
| 04/01/1993 | WO1993006300A1 A method of and a device for adjusting creping conditions |
| 04/01/1993 | WO1993005887A1 Device and process for coating a travelling web |
| 04/01/1993 | CA2117082A1 A method of and a device for adjusting creping conditions |
| 03/31/1993 | CN1070444A Method for manufacturing fly-killing paper |
| 03/30/1993 | CA1315049C Process for the preservation of printed cellulosic materials |
| 03/25/1993 | DE4130118A1 Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn, insbesondere einer papier- oder kartonbahn Coating apparatus for an order against a roller GUIDED material web, especially a paper or cardboard web |
| 03/24/1993 | EP0533643A1 Method and coating device for the coating of a size-press roll, paper or board |
| 03/24/1993 | EP0533022A1 A method for controlling the coating colour build-up on a blade at coating stations in a paper coating machine |
| 03/12/1993 | WO1993005223A1 Device for coating a web of material, in particular a paper or cardboard web, led around a mating roll |
| 03/12/1993 | CA2094592A1 Device for coating a web material, in particular a paper or cardboard web, led around a mating roll |
| 03/09/1993 | CA1314164C Roll for use in fabrication of coated paper |
| 03/03/1993 | EP0529385A1 Process and apparatus for producing a smooth and glossy web |
| 02/23/1993 | CA1313731C Flexible carbon sheet and process for producing the same |