Patents for D21H 27 - Special paper not otherwise provided for, e.g. made by multi-step processes (13,797)
08/1983
08/10/1983EP0085494A2 A smoking article having reduced sidestream smoke
07/1983
07/26/1983US4395452 Abrasion resistant laminate
07/26/1983US4395332 Adsorption and filtration mat for liquids
07/21/1983WO1983002469A1 High bulk pulp, filter media utilizing such pulp, related processes
07/19/1983US4394416 Film-paper fiber layer laminate and process for preparation thereof
07/12/1983US4392861 Two-ply fibrous facing material
07/12/1983CA1149699A1 Filter and method of making same
07/06/1983EP0083197A1 A tipping assembly for an elongate smoking article
06/1983
06/22/1983EP0081967A1 Production of laminate materials
06/01/1983EP0079927A1 A method for treating a fibrous material and a plant for carrying out the method
05/1983
05/31/1983US4386183 Release coatings based on polyvinyl alcohol
05/17/1983US4384017 Wallpaper preparation board
05/17/1983CA1146396A1 Layered paper having a soft and smooth velutinous surface, and method of making such paper
05/11/1983EP0078424A2 Layer structure, and method for the continuous manufacture of a layer structure
04/1983
04/27/1983EP0077510A2 Absorbent material for water, aqueous solutions and aqueous body fluids
04/20/1983EP0077005A1 Patterned dry laid fibrous web products of enhanced absorbency
04/20/1983EP0076888A2 Absorbent flat product, and process for its manufacture
04/12/1983US4379808 Sheet type forming board and formed board products
04/05/1983US4379015 Production of waterproof corrugated paperboard
03/1983
03/23/1983EP0074528A1 Heat-sensitive adhesive paper and method of making it
03/22/1983US4377543 Strength and softness control of dry formed sheets
03/22/1983CA1143199A1 Method of and apparatus for making imprinted paper
03/15/1983US4376671 Multi-ply fibrous web structure and its manufacture
03/09/1983EP0073668A1 Low density nonwoven sheets
03/09/1983EP0073571A2 Backing sheet for cushioned floors
03/08/1983CA1142397A1 Abrasion-resistant laminate
03/01/1983CA1142039A1 Silicone-coated article and process for production thereof
02/1983
02/23/1983EP0072548A1 Process for preparing multilayer fibrous structures
02/15/1983CA1141250A1 Smoking articles
02/08/1983US4372814 Paper having mineral filler for use in the production of gypsum wallboard
02/01/1983CA1140442A1 Heat reflecting wall-cover
01/1983
01/19/1983EP0070172A1 Paper incorporating a partially embedded strip, methods for making paper and security documents
01/04/1983US4367251 Halogenonium or sulfonium photoinitiators, a-olefin oxides
12/1982
12/28/1982US4366068 Filter and method of making same
12/28/1982US4365425 Controlled curing of air-permeable bonded webs
12/28/1982CA1138239A1 Heat seal fibrous web and method of its manufacture
12/15/1982EP0066854A1 Security paper and method for its manufacture
12/09/1982WO1982004271A1 A method for treating a fibrous material and a plant for carrying out the method
11/1982
11/30/1982US4361615 Bowling lane
11/30/1982CA1136359A1 Overlay sheet and wood laminate
11/25/1982WO1982004014A1 Paper having mineral filler for use in the production of gypsum wallboard
11/10/1982EP0064309A2 A process for the manufacturing of paper, particularly corrugated paperboard
11/09/1982CA1135438A1 Cureable organopolysiloxane composition containing microcapsules
11/09/1982CA1135099A1 Manufacture of absorbent paper products
11/02/1982CA1134755A1 Adsorption and filtration mat for liquids
10/1982
10/27/1982EP0063301A1 Use of water-soluble polymers as adhesion promoters in the production of crêpe paper
10/26/1982US4355762 Apparatus for establishing a liquid curtain
10/19/1982US4355226 Apparatus for the spark perforation of sheet materials
10/19/1982CA1133818A1 Security paper from film-fibril sheets
09/1982
09/21/1982US4350788 Acetoacetylated polyvinyl alcohol as protective colloid
09/21/1982CA1131958A1 Creping adhesives for through-dried tissue
09/08/1982EP0059207A1 Non woven wet-lay process and multilayer flexible web for roofing felt made thereby.
09/01/1982EP0059056A1 Method for making a fibrous sheet
08/1982
08/24/1982US4345545 Apparatus for electron curing of resin coated webs
08/10/1982US4343850 Decorated laminate having indicia applied photoelectrographically and method of making same
08/10/1982CA1129265A1 Substrates impregnated with thermosetting synthetic resins and a process for the preparation thereof
08/03/1982US4342423 Curtain coating method
07/1982
07/20/1982US4340634 Heat-reflective wall-paper or wall liner
07/13/1982US4339088 Embossing method to avoid nesting in convolutely wound rolls and product
07/06/1982CA1127023A1 Coating composition for release sheets
06/1982
06/24/1982WO1982002067A1 Process for the manufacture of decorative laminates
06/23/1982EP0054405A1 Process for the manufacture of decorative laminates
06/22/1982CA1126025A1 Differential gloss release sheet
05/1982
05/26/1982EP0052237A2 Paper for concrete with exposed aggregate and method for its manufacture
05/25/1982CA1124121A1 Soft absorbent imprinted paper sheet and method of manufacture thereof
05/11/1982CA1123194A2 Surface treatment of paper webs
04/1982
04/28/1982EP0050398A2 Release sheet and method and apparatus of providing surface replication in a release coating
04/27/1982US4327141 Abrasion-resistant laminate
04/27/1982US4327121 Acrylic functional curing material
04/20/1982US4326000 Sanitary paper
04/20/1982CA1122045A1 Apparatus and process for preparing hard or medium density board
03/1982
03/30/1982US4322468 Abrasion-resistant decorative laminates
03/30/1982US4322450 Surface replication on a coated substrate
03/18/1982WO1982000837A1 Method for manufacturing by wet process a non-woven layer and multilayer flexible sheet for roofing cardboard manufactured with such layer
03/16/1982US4320172 Modified by an alkyd resin or an acrylic resin
03/16/1982US4320162 Embossment
03/16/1982US4319974 Epoxy adhesives using onium salt phoitinitiators
03/09/1982CA1119375A1 Sheets of modified cellulosic fibers
03/09/1982CA1119358A1 Post-treatment of humic acid-dyed paper
02/1982
02/03/1982EP0045143A1 Alkali-soluble hot melt adhesive compositions
02/03/1982EP0045135A1 Method of making a laminated sheet material
02/03/1982EP0045014A1 Apparatus for electron curing of resin coated webs
01/1982
01/26/1982EP0036883A4 Release coatings.
01/20/1982EP0044178A2 Fibrous composite materials and the production and use thereof
01/20/1982EP0044161A2 Fibrous composite materials and the production and use thereof
01/20/1982EP0044160A1 Fibrous composite materials and the production and use thereof
01/19/1982US4311766 Sheets, stripping, acrylic polymers
01/19/1982US4311746 Corrugated paper board
01/19/1982US4311555 Method of manufacturing fiberboard
01/19/1982CA1116452A1 Tissue paper machine
01/12/1982CA1115908A1 Process for manufacture of thermoformable panels
01/06/1982EP0043290A1 Process and apparatus for producing non-woven fibrous cellulosic sheet material
01/06/1982EP0043062A2 Process for the manufacture of printed wallpaper foils
01/05/1982US4309247 Cellulose fiber matrix containing fine particles of filter aid; for filtration of submicron particles from liquids
12/1981
12/30/1981EP0042716A1 Process for preparing multi-layer structures from sheets containing synthetic fibres
12/29/1981US4308092 Creping paper using cationic water soluble addition
12/29/1981CA1115162A1 Smoking rod wrapper
12/15/1981US4306050 Pentaerythritol, tri(meth)acrylate
12/15/1981US4305987 Thermoset resin, mineral, stabilizing binder, print design
12/09/1981EP0041205A1 Process for the manufacturing of filter materials