Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21H - Pulp compositions; Preparation thereof not covered by subclasses ,; Impregnating or coating of paper; Treatment of finished paper not covered by class or subclass; Paper not otherwise provided for › D21H 23 - Processes or apparatus for adding material to the pulp or to the paper
Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452)
10/1985
10/08/1985US4545856 Paper sizing
09/1985
09/24/1985US4543384 Asbestos fibers, synthetic rubber binder, acrylic acid polymer, felt sheet
09/24/1985US4543157 Method and apparatus for the manufacture of variegated paper webs
08/1985
08/13/1985CA1191727A1 Soft, strong, absorbent tissue paper and process therefor
07/1985
07/23/1985US4530862 Control system and method for dispensing a liquid
06/1985
06/19/1985EP0145522A1 Paper sheet, process for producing it, and its applications in particular as a substitute for impregnated glass fibre mats
06/18/1985US4524097 Wallcovering in roll form
05/1985
05/23/1985WO1985002205A1 Improvements in the coating of cellulosic base stocks and the products thereof
05/14/1985CA1186857A1 Process for papermaking
04/1985
04/09/1985US4510020 Lumen-loaded paper pulp, its production and use
04/09/1985US4510019 Bridging agent is condensate of diamide and formaldehyde
04/02/1985US4508595 Forming aqueous suspension of cellulosic fibers, binding with hydrocolloid
03/1985
03/13/1985EP0039686B1 Heat seal fibrous web and method of its manufacture
03/12/1985CA1183660A1 Process for the continuous manufacture of paper sheets of fibrous materials and latex
03/06/1985EP0133832A1 Process and apparatus for the production of a polymerised coating on a substrate
02/1985
02/26/1985US4501641 Process for producing paper or non-woven fabric
02/12/1985US4499125 Continuously produced melt reacted melamine-formaldehyde resins
01/1985
01/16/1985EP0131083A1 Lining of fibrous material for glazing rolls
10/1984
10/31/1984EP0123567A1 Preparation of a paper for packaging
09/1984
09/19/1984EP0118674A2 Method for continuously producing melt-reacted melamine-formaldehyde resins
09/11/1984CA1174015A1 Material in sheet form, convertible into a finished product by moulding-stamping or heat-shaping, comprising reinforcing fibres and a thermoplastics resin in powder form, and process for preparing said material
08/1984
08/16/1984WO1984003113A1 Fibrous material for making coatings of resilient smoothing rollers and resilient smoothing roller provided with such a coating
08/02/1984WO1984002936A1 Preparation of a packaging paper
07/1984
07/04/1984EP0112525A1 Agent and process for neutral sizing
07/03/1984US4458062 Continuously produced melt reacted melamine-formaldehyde resins
06/1984
06/05/1984CA1255856B Production of paper and board
06/05/1984CA1168404A1 Production of paper and board
05/1984
05/30/1984EP0109900A1 Process for the production of latex-containing papers, and paper sheets thus obtained
05/01/1984US4445972 Process for the continuous manufacture in an aqueous medium of sheets made of fibrous material and containing latex or similar and/or phenoplasts or aminoplasts, sheets obtained by said process and their possible re-use
04/1984
04/03/1984US4440105 Paper coating apparatus having a replaceable orifice plate
03/1984
03/21/1984EP0103458A1 Wallcoverings in roll form
02/1984
02/22/1984EP0100846A1 Ceramic fiber board
02/15/1984EP0100726A1 Paper webs comprising metal fibres, their manufacture and their application to the protection or screening against electromagnetic interference
12/1983
12/27/1983CA1159321A1 Combined size press and breaker stack and method
12/06/1983CA1158110A1 Method and means for continuously coating a moving web, namely a strip of paper or cardboard
11/1983
11/10/1983WO1983003858A1 Dry paper machine
10/1983
10/04/1983CA1154563A1 Papermaking and products made thereby
09/1983
09/27/1983US4406737 Creping paper using cationic water soluble addition polymer
09/13/1983CA1153600A1 High speed size press
08/1983
08/23/1983CA1152266A1 Lumen-loaded paper pulp, its production and use
07/1983
07/05/1983CA1149157A1 Flow distributor for a liquid film discharging device
06/1983
06/21/1983US4389282 Ceramic fiber board
06/14/1983US4388150 Complexing cationic starch and colloidal silica
06/14/1983US4388137 Process for transfer coating with radiation-curable compositions
06/09/1983WO1983001970A1 A process for paper making and paper product
06/08/1983EP0080986A2 A process for papermaking
05/1983
05/31/1983US4385961 Papermaking
03/1983
03/22/1983US4377440 Process for manufacturing of formed products
03/15/1983US4376674 Surface treatment of fiberboard with sodium silicate, calcium carbonate slurry
03/08/1983US4375970 Converting machine gum box
02/1983
02/15/1983US4373992 Non-asbestos flooring felt containing particulate inorganic filler, a mixture of fibers and a binder
02/09/1983EP0071392A1 Paper manufacture
12/1982
12/28/1982CA1138239A1 Heat seal fibrous web and method of its manufacture
12/15/1982EP0067076A1 Process for the continuous manufacture in an aqueous environment of fibrous webs containing latex or a similar composition and/or a phenoplastic or aminoplastic, webs so obtained and their optional reuse
09/1982
09/28/1982CA1132309A1 Highly charged paper product
09/14/1982CA1131483A1 Paper stock sizing system
07/1982
07/20/1982US4340623 And for coating paper
07/20/1982US4340011 Flow distributor for a liquid film discharging device
07/06/1982CA1126910A1 Process for producing sized paper and cardboard with polyelectrolytes and epoxide-amine-polyamide reaction products
05/1982
05/25/1982US4331713 Process and apparatus for the continuous coating of a sheet article, particularly a web of paper or paperboard
04/1982
04/20/1982US4326000 Sanitary paper
04/20/1982US4325784 Paper coating, rolling
01/1982
01/19/1982CA1116399A1 Apparatus for the manufacture of a dual coated manifold sheet with pressure-rupturable materials
12/1981
12/29/1981US4308092 Creping paper using cationic water soluble addition
12/23/1981EP0042234A1 Lumen-loaded paper pulp, its production and use
12/22/1981CA1114563A1 Method for the production of fibrous mats
12/15/1981US4305781 Production of newprint, kraft or fluting medium
12/02/1981EP0041056A1 Papermaking
11/1981
11/18/1981EP0039676A1 Liquid impregnating system
11/10/1981US4299654 Process for producing sized paper and cardboard with polyelectrolytes and epoxide-amine-polyamide reaction products
11/10/1981CA1112006A1 Highly filled sheets and method of preparation thereof
11/04/1981EP0039292A1 Sheet material which can be converted into a finished product by moulding, embossing or thermoforming, comprising reinforcing fibres and a powdery thermoplastic resin, and process for preparing said material
10/1981
10/27/1981CA1111210A1 Ionic coagulation in beater addition of binder latices in papermaking
10/20/1981CA1110844A1 Combined breaker size press coater
10/06/1981CA1110019A1 Process for manufacturing paper having improved dry strength
09/1981
09/15/1981US4289580 Heat seal fibrous web and method of its manufacture
08/1981
08/18/1981US4284471 Dewatering, shaping on wire
08/04/1981CA1106110A1 Treatment of materials with silicon halides
07/1981
07/21/1981US4279964 Froth coating of paper products and process for forming same
07/21/1981US4279696 Brakes from a cured sheet of metal fibers, powdered resin, rubber latex and inorganic fillers
06/1981
06/30/1981CA1103968A1 Packing paper and method of making same
05/1981
05/28/1981WO1981001429A1 Heat seal fibrous web and method of its manufacture
05/14/1981WO1981001277A1 Liquid impregnating system
05/05/1981US4265703 Method of preparing a fibrous structure containing metallic fibers
05/05/1981CA1100269A1 Creping paper using cationic water soluble polymer
03/1981
03/17/1981CA1097467A1 Mineral fillers
02/1981
02/24/1981CA1096289A1 Sheet-type wall covering or ceiling covering
02/10/1981US4250211 Pressurization
02/10/1981CA1095345A1 Processes and apparatus for coating paper and cardboard and an apparatus for performing them
02/03/1981CA1094893A1 Method of and means for coating both sides of a travelling web
01/1981
01/20/1981CA1093767A1 Preparation of a wax-containing paper sheet
12/1980
12/02/1980CA1090511A1 Method for controlling canadian standard freeness in fiber slurry beater addition
10/1980
10/15/1980EP0017353A1 Production of paper and paper board
10/01/1980EP0016681A1 Method of and apparatus for continuously coating sheet material, particularly a paper or cardboard web
09/1980
09/30/1980US4225383 Highly filled sheets and method of preparation thereof
09/30/1980CA1086613A1 Selected stripping of metals
08/1980
08/26/1980CA1084212A1 Method of making sized paper
07/1980
07/01/1980US4210490 Cationic starch, kaolinic clay filler and celluloseic fibers
04/1980
04/22/1980CA1075944A1 Filled paper
04/16/1980EP0009885A1 Method for applying coatings to substrates
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