| Patents for D21F 13 - Methods or apparatus for making discontinuous sheets of paper, pulpboard, or cardboard, or of wet web, for fibreboard production (365) |
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| 03/01/2000 | CN2366436Y Measuring bar with its seat |
| 08/19/1999 | CA2261403A1 Diboride coated pressing surfaces for abrasion resistant laminate and making pressing surfaces |
| 07/08/1999 | DE19758265A1 Pencil board production |
| 07/07/1999 | EP0927790A2 Process for making laminated boards, pencilboards and/or stems for writing-, drawing- or painting instruments |
| 05/19/1999 | CN1216791A Method for prodn. of kraft liner board |
| 04/21/1999 | CN1214389A Method of treating papermaking fibers for making tissue |
| 03/30/1999 | US5888352 Apparatus for wet manufacturing fiber reinforced thermoplastic resin sheet |
| 02/24/1999 | CN1042245C Method for mfg. thin tissue paper |
| 10/06/1998 | US5817216 Method of producing wet frictional material |
| 03/18/1998 | CN1037790C Producing process of nap pulp-board for sanitary napkins |
| 02/25/1998 | CN2275113Y Paper sheet forming device |
| 10/28/1997 | US5681428 Method of manufacturing an inorganic board |
| 10/22/1997 | EP0757733B1 Suction mould for making papier-mache objects, and method of making such a mould |
| 09/24/1997 | CN2263129Y Black oil coated paper for making metal foil |
| 02/12/1997 | EP0757733A1 Suction mould for making papier-mache objects, and method of making such a mould |
| 09/11/1996 | CN2234967Y Forming machine for loose mica paper board |
| 09/04/1996 | CN1032705C Double side smooth thickened board paper and its producing method |
| 07/10/1996 | CN1126260A Sulfonated cellulose and method of preparation |
| 06/04/1996 | US5522967 Pre-oxidizing cellulose fiber with an oxidizing agent before sulfonation |
| 03/06/1996 | CN1118029A Technology for production of bamboo-wood flossy pulp-board |
| 12/06/1995 | EP0685593A2 Sulfonated cellulose and method of preparation |
| 11/28/1995 | CA2138193A1 Sulfonated cellulose and method of preparation |
| 11/02/1995 | WO1995029295A1 Suction mould for making papier-mache objects, and method of making such a mould |
| 06/28/1995 | CN1104275A Method for production of hot-pressed makeready overlay paper for producing electronic industry hot-pressed veneer sheet |
| 05/18/1995 | WO1995013425A1 Sheet material manufactured piecewise and based on cellulose pulp fibres, and a method and an apparatus for manufacturing sheet material |
| 01/25/1995 | CN1097825A Method for producing double side smooth thickened board paper |
| 01/18/1995 | EP0613420A4 Board stock and method of manufacture from recycled paper. |
| 10/04/1994 | US5351931 Paper-making kit with improved basin and web supporting screen |
| 09/07/1994 | EP0613420A1 Board stock and method of manufacture from recycled paper |
| 08/24/1994 | CN1091173A Method of treating papermaking fibers for making tissue |
| 08/16/1994 | CA2071932C Pulp slab stacker |
| 07/20/1994 | EP0606439A1 Transfer device particularly for flexible laminar products |
| 03/03/1994 | WO1994004360A1 Board stock and method of manufacture from recycled paper |
| 03/03/1994 | CA2121031A1 Board stock and method of manufacture from recycled paper |
| 02/17/1994 | WO1994003384A1 Transfer device particularly for flexible laminar products |
| 06/24/1993 | WO1993012286A1 Recycling paper |
| 06/08/1993 | US5217752 F.P. system for manual restoration |
| 12/29/1992 | CA1311954C Frame construction of the press section in a paper machine |
| 07/01/1992 | EP0367770B1 Process for manufacturing heat-insulating and soundproofing boards and soundproofing materials |
| 07/03/1991 | CA2007092A1 Method for fabricating thermal and insulation acaustic panels and sound absorbing units and panels fabricated by same |
| 07/03/1990 | US4938844 Process for producing fiber aggregate |
| 05/16/1990 | EP0367770A1 Process for manufacturing heat-insulating and soundproofing boards and soundproofing materials. |
| 03/07/1990 | EP0356550A1 Apparatus for the restoration of damaged paper sheets |
| 11/07/1989 | US4879002 Frame construction of the press section in a paper machine |
| 11/02/1989 | WO1989010449A1 Process for manufacturing heat-insulating and soundproofing boards and soundproofing materials and boards so obtained |
| 03/22/1989 | EP0308029A1 Frame construction of the press section in a paper machine |
| 08/17/1988 | CN85107578B Technology of chemical machinery method of pulpmaking with reed to make paperplate |
| 11/11/1987 | EP0244964A1 Manufacture of flexible intumescent sheet |
| 07/22/1987 | EP0229196A1 Method and device for making a multilayered fibrous material, especially cardboard |
| 05/06/1987 | CN85107578A Technology of chemical machinery method of pulpmaking with reed to make paperplate |
| 03/19/1985 | US4505777 Method for producing oriented fleeces or mats of short length fibers |
| 01/02/1985 | CA1180216A Process and device for moulding and drying objects made of fibrous materials |
| 04/17/1984 | US4443343 Method and apparatus for manufacturing planar fiber webs from short, oriented reinforcement fibers or fiber blends |
| 04/13/1982 | CA1121565A1 Process and apparatus for the manufacture of fibrous webs |
| 04/06/1982 | US4323426 Crafted paper making machine |
| 12/23/1980 | US4241007 Method of producing water-absorbent solid cloth-like articles |
| 08/12/1980 | US4217169 Molding, compaction |
| 03/06/1979 | US4142933 Manufacture of insulating products |
| 02/21/1978 | US4074393 Method and apparatus for dry forming a layer of fibers |
| 10/25/1977 | US4055462 Apparatus for forming a fiber oriented handsheet |
| 06/28/1977 | US4032393 Cellulosic construction boards |
| 09/07/1976 | US3979253 Method for dispersing glass fibers for the preparation of glass filter media |
| 05/04/1976 | US3954556 Asbestos, talc, binder |
| 05/04/1976 | US3954555 Fiber reinforced plastic articles and method of preparation |
| 03/30/1976 | US3947535 Aligning fibres |