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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 4233390 | Lithographic printing plate having dual photosensitive layering A method for preparing aluminum based lithographic printing plates which comprises treating at least one surface of an aluminum base sheet with lithographically suitable, photosensitive, preferably water-soluble, diazo composition and then applying to sai... | 11/11/1980 |
| 4229266 | Process for anodically oxidizing aluminum and use of the material so prepared as a printing plate support This invention relates to an improvement in the process for anodically oxidizing materials in the form of strips, foils, or sheets composed of aluminum or aluminum alloys in an aqueous electrolyte containing sulfuric acid and phosphoric acid, if appropria... | 10/21/1980 |
| 4228232 | Photopolymerizable composition containing ethylenically unsaturated oligomers A photopolymerizable composition is disclosed which comprises 10 to 60% by weight of an ethylenically unsaturated, carboxylic acid containing oligomer, 10 to 60% by weight of an organic film forming polymer, 10 to 60% by weight of a free radical polymerizable ... | 10/14/1980 |
| 4211619 | Process for anodically oxidizing aluminum and use of the material so prepared as a printing plate support This invention relates to an improvement in the process for anodically oxidizing materials in the form of strips, foils, or plates comprised of aluminum or aluminum alloys in an aqueous electrolyte containing sulfuric acid and aluminum ions, if appropriat... | 07/08/1980 |
| 4210712 | Adhesive-bearing metal sheet with photopolymerizable layer Adhesive coated metal sheet, e.g., steel, aluminum, bearing an adhesive layer comprising an ethyl acrylate, methyl methacrylate and acrylic acid copolymer; styrene and maleate ester copolymer, aqueous colloidal silica, and aqueous latex of a self-curing i... | 07/01/1980 |
| 4207105 | Plasma-etching image in exposed AgX emulsion A method for forming an image comprising forming a silver, silver halide or binder image in the emulsion layer of a photographic material, which photographic material comprises a support having a silver halide emulsion layer thereon, by exposing and devel... | 06/10/1980 |
| 4205989 | Dry system image producing element There is disclosed a dry system image producing element comprising a substrate, a thin metal layer and a photosensitive layer. After exposing the element to light through a desired pattern, the photosensitive layer is peeled off to obtain a light barrier ... | 06/03/1980 |
| 4189320 | Light-sensitive o-quinone diazide compositions and photographic reproduction processes and structures A light-sensitive coating composition and a light-sensitive photomechanical structure, such as a printing plate or a photoresist is produced by coating a suitable planar substrate with a condensation product of an organic isocyanate and a polymeric resin ... | 02/19/1980 |
| 4183788 | Process for graining an aluminum base lithographic plate and article thereof Planar surfaces are roughened by graining with an aqueous slurry of unfused platy, crystalline alumina. Preferably, an aluminum base with is adapted to receive a light-sensitive coating thereon to make lithographic plate is grained with said aqueous slurr... | 01/15/1980 |
| 4172772 | Printing plates Aluminium or aluminium alloy is electrolytically grained using alternating current and an aqueous electrolyte comprising specified amounts of hydrochloric acid and a monocarboxylic acid containing from 1 to 4 carbon atoms, preferably acetic acid. The grai... | 10/30/1979 |
| 4171974 | Aqueous alkali developable negative working lithographic printing plates NEGATIVE WORKING LITHOGRAPHIC PRINTING PLATES WHOSE COATING COMPRISES THE ADMIXTURE OF ACRYLATED ESTERS OF EPOXY RESINS WITH NEGATIVE WORKING LITHOGRAPHIC SENSITIZERS ARE FORMED, WHEREBY THE NON-IMAGE AREAS ARE REMOVABLE BY AQUEOUS ALKALI DEVELOPERS.... | 10/23/1979 |
| 4158079 | Composite material and a process and device for its manufacture A composite material for graphical applications, in particular for nameplate production and having foil of aluminium or one of its alloys stuck on to a support foil. This aluminium foil bears on its side facing away from the supporting layer an aluminium ... | 06/12/1979 |
| 4153461 | Layer support for light-sensitive material adapted to be converted into a planographic printing plate This invention relates to an aluminum base material for presensitized printing plates. The aluminum has an anodically produced oxide layer on the surface thereof, which layer is at least 0.0002 mm. thick, and the oxide layer is reacted with polyvinyl phos... | 05/08/1979 |
| 4152158 | Electrochemically treated photo-lithographic plates There are disclosed herein lithographic plates having an aluminum base the surface of which has been made porous and hardened first by an alternating current anodization in a hydrochloric acid electrolyte and then by a direct current anodization in a sulf... | 05/01/1979 |
| 4131465 | Radiation sensitive polymeric o-nitrophenyl acetals and element Radiation-sensitive linear polymers comprise repeating structural units containing an o-nitrophenyl acetal. The polymer is formed, for example, by the linear polycondensation of o-nitrobenzaldehyde with a particular dihydroxy alcohol. The polymers are use... | 12/26/1978 |
| 4131518 | Process for anodizing aluminum Aluminum foil in the form of a continuous web for example, is anodically oxidized by first coating one side of the web with a material such as a polymeric material which is inert to the anodizing conditions and then electrolytically anodizing the uncoated... | 12/26/1978 |
| 4116695 | Method of producing a support for a printing plate A method of producing a support for a printing plate comprising treating an aluminum plate, which has been oxidized by anodizing and then etched, with hot water or with water vapor.... | 09/26/1978 |
| 4115127 | Processing-free type lithographic printing plate material A processing-free lithographic printing plate, which comprises a support having deposited thereon a composition containing germanium and sulfur and at least one of a metal or metal compound in a physically mixed state.... | 09/19/1978 |
| 4102686 | Lithographic photosensitive compositions comprising acrylonitrile-butadiene-styrene terpolymer and novolak resin The reaction product formed by the addition of a phenol-formaldehyde to an acrylonitrile-butadiene-styrene terpolymer has incorporated therein a suitable photosensitizer to form a composition which when coated on an appropriate substrate alternately may f... | 07/25/1978 |
| 4052217 | Bimetallic lithographic printing plates A sheet material for bimetallic printing plate production comprises a base metal layer, a thin bimetallic layer comprising lithographically different metals, and a barrier layer between the base metal layer and the bimetallic layer. The barrier layer may ... | 10/04/1977 |
| 4049504 | Method of producing lithographic printing plates In the production of lithographic printing plates, the method of anodizing the surface of an aluminum web substrate which comprises subjecting said web to an anodization treatment in an electrolyte comprised of a combination of sulfuric acid and phosphori... | 09/20/1977 |
| 4021592 | Process of making electroplated anodized aluminum articles and electroless plating An article having an aluminum substrate, an unsealed, porous anodic oxide layer thereon and electrolytically deposited, randomly distributed discrete metal islands having a root portion anchored in one or more pores of the oxide layer. The metal islands e... | 05/03/1977 |
| 4008084 | Metallic image forming material A metallic image forming article comprising a support, an intermediate layer comprising Al and a metal having an ionizing tendency lower than that of Al, and a photosensitive resin layer on the intermediate layer.... | 02/15/1977 |
| 3979212 | Laminated lithographic printing plate An inexpensive, strong, durable noncracking, high fidelity lithographic printing plate comprises a soft temper aluminum sheet laminated to a nonstainless steel sheet with an adhesive. If desired, the aluminum sheet can be plated with either copper or chro... | 09/07/1976 |
| 3975197 | Coated aluminum substrates Aluminum substrates are provided having a coating of particulate material bound thereto by means of an in situ formed binder of aluminum hydroxyoxide. The coated aluminum constructions have utility in imaging and reproduction processes (e.g., as printing ... | 08/17/1976 |
| 3961955 | Printing process capable of reproducing continuous tone images Continuous tone images are reproduced on a plate having metallic images adherently and preferably conductively bonded to a physically roughened support by contacting with a photographic physical developer an imaging medium comprising a physically developa... | 06/08/1976 |
| 3933885 | Cinnamylideneacetic acid esters A monomer unit represented by general formula (I) ##SPC1## wherein R1 is a hydrogen atom or a methyl group; R2 is a divalent group containing 2 to 10 carbon atoms; R3 is a hydrogen atom, a halogen atom (such as chlorine, b... | 01/20/1976 |
