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WO/1993/000394A1 |
A thin fluoropolymer film is covalently bonded to a microporous ptfe film to make a bilayer for separation, filtration or reverse osmosis, by exposing the microporous film to perfluorocyclohexane under plasma.
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WO/1992/021817A1 |
Mass conservation of archives by melting on the archives a binder composition reinforced by a nonwoven or woven fabric is disclosed. The nonwoven or woven fabric is impregnated on a carrying belt or roller with an aqueous dispersion that...
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WO/1992/021450A1 |
The invention concerns a method for the production of matt paint surfaces, the method calling for a first paint coat with a first thickness to be applied first, and subsequently at least a second paint coat to be applied over the first, ...
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WO/1992/017640A1 |
A method and a plant for processing paper products with a heavy pressurized fluid, wherein fibrous materials such as closed, stacked books (2) are contacted, preferably dynamically, with (a) a heavy fluid such as supercritical CO2, and (...
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WO/1992/015741A1 |
A method is disclosed for the densification of crosslinked fibers having a crosslinking agent loading level of from about 2.5 molar to about 5 molar %. The crosslinked fibers are compressed from an initial density of from about 0.02 g/cc...
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WO/1992/014608A1 |
Provided is a penetration resistant article which comprises a particular wet-laid, non-woven structure. The wet-laid, non-woven structure is comprised of high strength, high melting fibers, such as aramid fibers, and a binder for binding...
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WO/1992/009645A1 |
A method is disclosed for producing a polyurea-cellulose composite material from substantially delignified cellulosic material and an isocyanate resin. The isocyanate resin comprises a polyisocyanate, preferably PMDI, and a miscible orga...
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WO/1992/007135A1 |
Paper having a relatively high rigidity including Japanese paper and fibrous sheet such as vegetable fibrous sheet and nonwoven fabric are used as base materials for finishing without subjected to any processing while fibrous sheets incl...
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WO/1992/006243A1 |
The present invention provides an apparatus which utilises a drum or cylinder for 'casting' an electron-curable premetallisation coating onto a paper substrate. The premetallisation process comprises the steps of (a) coating a drum (24) ...
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WO/1992/003233A1 |
A release sheet for adhesive products is provided wherein an acidic material such as an acidic polymer is disposed between a substrate layer and an acid catalyzed silicone release layer. The acid catalyzed silicone release layer is prefe...
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WO/1992/003286A1 |
The invention is a method of making a cellulose based polymeric material and the products of the invention. A cellulosic substrate is impregnated with an essentially uncatalyzed polyfunctional isocyanate and pressed at elevated temperatu...
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WO/1991/018684A1 |
A method of forming a coating on a web. A coating mixture (22) includes a continuous phase of a first material and a second material contained in microcapsules. The first material and the second material interact to form the coating. The...
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WO/1991/017838A1 |
Method and apparatus for applying a liquid film of controlled thickness to a paper web (51). The apparatus is in the form of a flexible blade coater having a flexible blade (60) fixed at one end (61) and bearing against a backing roll (5...
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WO/1991/017309A1 |
Devices for coating webs of paper or cardboard are known which comprise an applicator mechanism with a driven transfer roller over which part of the web passes for the application of an excess of coating material to the web, a roll squee...
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WO/1991/014046A1 |
A method of making a photographic paper support having improved raw stock keeping characteristics by an internal acid sizing step and an external alkaline sizing step to achieve a water extractable pH of from 6 to 9.5.
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WO/1991/012900A1 |
A process for strengthening the cellulose in materials which have been treated with an alkaline organometallic compound selected from a metal alkyl, metal alkoxide or alkyl metal alkoxide to deacidify the cellulose and which cellulosic m...
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WO/1991/004800A1 |
A process and apparatus for the deacidification and removal of moisture and/or solvent from books. Containers of books (10) are moved by conveyor (42) into a drying chamber (C1) where the books are dried under vacuum dielectric heating (...
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WO/1991/004787A1 |
A method of and apparatus for inducing a deacidification chemical compound into the pages of a book by immersing the book in the solution containing the compound with the solvent being subsequently driven off by simultaneously subjecting...
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WO/1991/004797A1 |
A method and apparatus for rapidly removing moisture and/or solvent from a book for reducing the total cycle time required to deacidify the book. The present invention provides a chemical solution which deacidifies the papers and leaves ...
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WO/1991/001882A1 |
Transparentized paper, free of residual solvent, is fabricated by coating a web (10) of paper with a solvent-free transparentizing medium (50), allowing the medium to remain on the paper for a period of time sufficient to saturate part b...
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WO/1990/003466A1 |
This invention provides a process for deacidifying paper by contacting the paper with hydrocarbon or halocarbon solutions of certain magnesium and/or zinc alkoxyalkoxides which may have been treated with carbon dioxide to yield low visco...
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WO/1989/010448A1 |
A method of making a water-sensitive substrate water-resistant and rigid in the wet state, is disclosed. The substrate is soaked with an aqueous composition comprising a water-soluble alkali silicate, a hardener for the alkali silicate, ...
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WO/1989/008553A1 |
A flexible porous web (preferably a fabric) comprised of associated fibers is provided wherein the fibers are at least partially encapsulated with a silicone polymer. Preferably at least about 50 weight percent of all web fibers have at ...
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WO/1989/008554A1 |
An improved process is provided for treating a porous web (especially fabric) to produce a novel silicone polymer internally coated web. In the process, a starting curable liquid silicone polymer is coated under pressure upon one surface...
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WO/1989/008555A1 |
A flexible porous substrate (i.e., leather, paper, an open-celled foamed structures) comprising a matrix having open cells therein is provided wherein the cells are partially lined with a silicone polymer. Most cells remain open, but are...
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WO/1989/005833A1 |
High strength, light weight composite material, comprising discrete reinforcing elements surrounded by a matrix including polymer micro-bits that are substantially free of the intact cells of the expanded, hydrophobic, thermoplastic poly...
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WO/1989/004890A1 |
Method and device for contact-free drying of a paper or board web (W) or of any other, corresponding continuous web (W). In the drying, both infrared radiation (R) and drying air jets are used, by means of which said air jets the web (W)...
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WO/1988/010155A2 |
A resilient metering blade (18C-E) is disposed downstream relative to the application of coating material onto a web (10C-E), e.g. paper. The blade (18C-E) includes a metallic layer (50) having a distal end (52) disposed adjacent to the ...
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WO/1988/010337A1 |
Method for the manufacture of coloured egg packages, apparatus for carrying such a method into effect and egg packages manufactured by this method. The invention concerns a method for the manufacture of coloured egg packages (6), made fr...
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WO/1988/008757A1 |
Notable property improvements are obtained when nonwoven fibrous cellulosic substrates such as paper, paperboard, etc. are treated (e.g., size press treatment) with an aqueous solution of acrylamide-substituted starch materials and/or wh...
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WO/1988/007103A1 |
An arrangement for drying a running paper web (3) by heat treatment. The treatment is carried out by heat emitting sources, the heat means comprising separate heat units (8) for the emittance of wavelengths in infrared light spectra. The...
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WO/1988/005698A1 |
An applicator with a rolling scraper for directly or indirectly applying fluid coatings (3) on webs of material (2) has a scraping bar (5) rotatably mounted in a support (9) and lying with a variable pressure on a web of material conveye...
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WO/1987/004476A1 |
Process for forming a fiber-reinforced, heat-fusible polymeric composite wherein a dilute aqueous slurry of reinforcing fibers and solid heat-fusible polymeric particles are deposited on a foraminous support, and the resulting mat de-wat...
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WO/1987/000217A1 |
A treatment system for cellulosic materials which is particularly adapted for the manual treatment of single pages of books, as well as documents, engineering drawings, maps, and works of art on paper. The system includes a deacidificati...
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WO/1987/000117A1 |
The process serves to impregnate planar carrier materials especially those in the form of continuous webs, with synthetic resin to manufacture a stackable product, such as, e.g., paper-prepregs to be used for the manufacture of synthetic...
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WO/1986/001152A1 |
A fiber-reinforced synthetic resinous material composite having a continuous matrix of the resinous material and from 10 to 50 percent by weight of randomly oriented reinforcing fibers and a void volume of from 20 to 90 percent of the to...
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WO/1986/000564A1 |
A process for producing release paper, which comprises extruding onto a base material such as paper a mixture of a polyolefin resin and a silicone releasing agent compatible with said resin and comprising a reaction product among polymet...
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WO/1986/000260A1 |
Method for impregnating plane support materials, having particularly the shape of endless belts, with a synthetic resin in order to fabricate a stackable product, for example a preimpregnated paper sheet to be used when fabricating lamin...
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WO/1985/003961A1 |
The treatment of archival material, more especially books and other bound volumes. The invention provides a process for the treatment of archival material, which comprises the radiation-induced polymerisation, within the paper, of a viny...
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WO/1984/001396A1 |
A method of manufacturing a cast-coated paper by means of rewetting or gelation comprises applying 1 to 30 g/m2 water to the reverse side of the paper at a press-nip part (6) pressing a coated layer onto the paper at a mirror-surface dru...
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WO/1983/001971A1 |
Method of reconditioning used currency notes by applying a stiffening composition like glue or a starch to the notes, pressing the notes to remove excess stiffening composition and folds therefrom and drying the notes. Drying may be perf...
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WO/1982/004271A1 |
A fibrous material, in particular a cellulose material, is subjected to heating and subsequent treatment at high pressure, in particular with application of an impregnation agent after the heating and before the high pressure treatment. ...
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WO/1982/000485A1 |
Method for producing a cellulosic sheet (20) capable of being used in high quality grades of tissue and towel, which exhibits outstanding water absorbency properties and a high degree of surface-perceived softness. The method includes th...
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WO/1981/002545A1 |
Curl resistant paper-based label. The label includes a coating on the paper layer of the label of a lecithin compound. This compound provides curl resistance properties to the label, water holdout properties to the label and increases th...
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WO/1981/000818A1 |
Release coating provided by a coating composition having an acrylic functional component which has been polymerized by electron beam radiation. In a preferred embodiment the coating composition does not contain polysiloxane. In another p...
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JP2024510973A |
Disclosed herein is a printable paper comprising a cellulosic substrate having a first surface and a second surface opposite the first surface, the printable paper having a 20 g/m2and the first surface, the second surface, or both have a...
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JP2023168184A |
To enlarge utilization of vulcanized fiber.Provided is a processing method for vulcanized fiber that renders states of characteristics of a material changed through the following steps of: impregnating vulcanized fibers with water; perfo...
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JP7366568B2 |
To provide a moisture-proof paper having both moisture-proof property and waterproof property and excellent cosmetic property, and to provide a method for producing the same.A moisture-proof paper of this invention is provided with a pap...
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JP7366567B2 |
To provide a moisture-proof paper having both moisture-proof and waterproof properties, and to provide a method for producing the same.A moisture-proof paper of this invention comprises a paper base material and a coating layer located o...
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JP2023540702A |
The present invention is a method for producing a multilayer single-glazed paper containing highly refined cellulose fibers, the method comprising: preparing at least one first pulp suspension containing highly refined cellulose fibers; ...
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