| Patents for D21F 11 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines (5,843) |
|---|
| 07/31/1990 | US4944843 Foamed fiber dispersion |
| 07/24/1990 | US4943093 Security paper for bank notes and the like |
| 07/17/1990 | US4942077 Tissue webs having a regular pattern of densified areas |
| 07/17/1990 | US4941947 Composite fibrous polyethylene sheet |
| 06/06/1990 | EP0215044B1 Method for preparing a fibrous sheet by using paper manufacturing techniques |
| 05/16/1990 | EP0367770A1 Process for manufacturing heat-insulating and soundproofing boards and soundproofing materials. |
| 05/16/1990 | CN1042203A Paper made by using wore clothe fibre |
| 05/15/1990 | US4925528 Polymeric surfactant; thickener; antifoam agent; papermaking |
| 05/15/1990 | CA1269025A1 Woven multilayer papermaking fabric having increased stability and permeability and method |
| 05/03/1990 | WO1990004676A1 A paper machine for manufacturing a soft crepe paper web |
| 05/02/1990 | EP0365826A1 Process and device for the production of mineral-fibre boards |
| 05/01/1990 | CA1268373A1 The production of tissue paper or porous batt using a papermachine screen |
| 04/24/1990 | US4919758 Heat treatment of paper products having starch additives |
| 03/27/1990 | US4911791 Apparatus for forming, pressing and drying paper webs having a felt and web run to a Yankee cylinder |
| 03/21/1990 | CN1007275B Method for manufacturing multilayer board |
| 03/14/1990 | CN1040408A Process of pulping and papermaking using false indigo stem as raw material |
| 03/07/1990 | CN1040240A Wet compositing method and equipment for packing paper |
| 02/07/1990 | CN1039461A Technology for producing high strength reinforced craft paper |
| 01/16/1990 | US4894118 Tissue paper, creping |
| 01/03/1990 | CN2050446U S-type paper-feeding corrugator |
| 01/03/1990 | CN1038474A Mulberry bark fibre filter paper and its manufacture |
| 12/26/1989 | US4889597 Dialdehyde-crosslinked cellulosic fibers; slurrying, flocculation, setting |
| 12/26/1989 | US4889580 Double facer |
| 11/23/1989 | EP0342646A2 Hand or wiper towel |
| 11/16/1989 | DE3815051A1 Paper machine |
| 11/08/1989 | EP0341043A2 Single layer seamed papermakers fabric |
| 11/02/1989 | WO1989010449A1 Process for manufacturing heat-insulating and soundproofing boards and soundproofing materials and boards so obtained |
| 10/04/1989 | CN1036059A Paper board for packing containers |
| 09/20/1989 | EP0332618A1 Method of making soft paper. |
| 09/13/1989 | EP0097716B1 High bulk pulp, filter media utilizing such pulp, related processes |
| 08/29/1989 | US4861432 Dual compartment vacufoil unit to eliminate secondary headbox chatter |
| 08/15/1989 | US4857148 Staple fiber, finish therefor and process for use of same |
| 07/19/1989 | CN1034079A Secret paper for making paper currency and securities |
| 07/18/1989 | US4849054 Papermaking |
| 07/13/1989 | DE3817552A1 A process for producing paper-covered absorbent cardboards |
| 07/05/1989 | CN1033667A Paper machine without woolen blanket |
| 06/20/1989 | CA1256014A1 Method for the manufacture of a paper web with decorative edge cutting |
| 06/07/1989 | EP0319157A2 Security paper for bank notes and the like |
| 05/30/1989 | US4834838 Fibrous tape base material |
| 05/17/1989 | EP0316081A1 Support sheet for photographic paper |
| 05/16/1989 | US4830709 Multi-ply web forming apparatus and method |
| 05/16/1989 | CA1254070A1 Method for manufacturing multilayer board |
| 04/19/1989 | EP0312512A1 Method of making three-layer paper |
| 04/18/1989 | US4822452 Polyetherurethane block copolymer thickener |
| 04/04/1989 | US4818342 Improving stiffness and strength, rewetting |
| 04/04/1989 | CA1251978A1 Fibrous webs of enhanced bulk and method of manufacturing same |
| 03/23/1989 | WO1989002499A1 Means for controlling wires in a paper machine or cardboard machine |
| 03/15/1989 | EP0306759A1 Means for controlling wires in a paper machine or cardboard machine |
| 03/08/1989 | EP0305433A1 Method for manufacturing a mineral fibre panel. |
| 02/28/1989 | US4808266 Dripping, pressing, evaporation with gas flow while on single porous support |
| 02/28/1989 | CA1250477A1 Method of finishing paper utilizing substrata thermal molding |
| 02/22/1989 | EP0304098A1 Former for forming a paper web |
| 02/22/1989 | EP0211840B1 Method for manufacturing multilayer board |
| 02/15/1989 | EP0303528A1 Hydroentangled disintegratable fabric |
| 02/09/1989 | WO1989001074A1 Nonwoven fabric-like product using a bacterial cellulose binder and method for its preparation |
| 01/25/1989 | EP0175704B1 A method and an apparatus for embossing a dry laid fibre web, e.g. for kitchen roll paper |
| 01/19/1989 | EP0136329A4 Method and apparatus for producing paper and other nonwoven fibrous webs. |
| 01/18/1989 | EP0299817A1 Inverse microlatex useful as a floatation and drainage adjuvant, and for the absorption and retention of aqueous fluids |
| 01/04/1989 | EP0297132A1 Method for manufacture of lightweight frothed mineral wool panel |
| 12/29/1988 | WO1988010274A1 Invert microlatices useful as flotation and drainage additives and for absorption and retention of aqueous fluids |
| 12/28/1988 | EP0296242A1 Low density mineral wool panel and method |
| 12/28/1988 | EP0296233A1 Low density frothed mineral wool panel and method. |
| 12/28/1988 | CA1247428A Deflection member |
| 11/30/1988 | EP0293179A1 Improvements in a process and apparatus for forming particulate layers |
| 11/02/1988 | EP0289445A2 Multi-ply web forming apparatus and method |
| 11/01/1988 | US4781793 Method for improving paper properties in multiply paper using long and short fiber layers |
| 10/25/1988 | US4780183 Pressure differential in vacuum compartments; papermaking |
| 10/25/1988 | CA1243529A1 Tissue paper |
| 10/12/1988 | EP0286318A2 Maufacture of wet laid nonwoven webs |
| 09/14/1988 | EP0281814A1 Double facer |
| 09/07/1988 | WO1988006656A1 Method for dewatering a wet paper web and introducing functional additives |
| 08/31/1988 | EP0077385B1 Apparatus and method for producing surface molded panel |
| 08/24/1988 | EP0279617A2 Photographic base paper |
| 08/24/1988 | EP0279465A2 Fibrous tape base material |
| 08/16/1988 | US4764253 Method for controlling feed of foamed fiber slurries |
| 07/27/1988 | EP0275382A1 Method for preparing composite felt preforms |
| 07/26/1988 | US4759391 Two layer papermachine embossing fabric with depressions in the upper fabric layer for the production of tissue paper |
| 07/14/1988 | WO1988005100A1 Method for manufacture of lightweight frothed mineral wool panel |
| 07/14/1988 | WO1988005098A1 Low density frothed mineral wool panel and method |
| 07/14/1988 | WO1988005097A1 Method for manufacturing a mineral panel |
| 07/14/1988 | WO1988005096A1 Low density mineral wool panel and method |
| 07/06/1988 | EP0191764B1 Sanitary paper web having high bulk, bulk softness and surface softness and method of manufacturing said web |
| 07/05/1988 | US4755421 Web containing wood pulp fibers, short staple length regenerated cellulose fibers; wet strength |
| 05/10/1988 | CA1236324A1 Sanitary paper web having high bulk, bulk softness and surface softness and method of manufacturing said web |
| 05/10/1988 | CA1236323A1 Means in the vat section of a vat machine |
| 05/03/1988 | US4741376 Manufacturing of kraft paper |
| 04/07/1988 | WO1988002416A1 Method of making soft paper |
| 03/02/1988 | CN86105042A Compound adhesive of corrugate paperboard |
| 02/10/1988 | EP0255690A1 Process for producing an agricultural paper |
| 02/03/1988 | EP0255319A2 Improvements in electromagnetic interference shielding |
| 01/12/1988 | US4718982 Semichemical mechanical pulping, wet strength, folding |
| 01/12/1988 | US4718981 Bleached kraft paperboard by densification and heat treatment |
| 01/07/1988 | EP0251673A1 Process for making wet-laid structures containing individualized, stiffened fibers |
| 01/05/1988 | CA1230995A1 Method and apparatus for producing paper and other nonwoven fibrous webs |
| 12/15/1987 | US4713276 Paper-like product, method and apparatus for production thereof and prepreg formed of said paper-like product |
| 12/08/1987 | CA1229956A1 Process for the manufacture of shaped fibrous products |
| 12/02/1987 | EP0247784A2 Process for forming a sheet of material |
| 11/24/1987 | CA1229513A1 Manufacturing of kraft paper |
| 10/06/1987 | US4698257 Wet-end molded product |
| 09/08/1987 | US4692212 Improve wet strength and molding endurance |