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| Number | Title | Issue Date |
| 7338741 | Lithographic printing plate precursor and lithographic printing method A lithographic printing plate precursor comprises: an aluminum support that has been subjected to an alkali metal silicate treatment; and an image-recording layer comprising (A) an infrared absorbent, (B) a polymerization initiator and (C) a polymerizable compound, ... | 03/04/2008 |
| 7296517 | Roll for metal rolling, and support for lithographic printing plate A roll for metal rolling has a roughened surface formed by an electrolytic treatment in an electrolytic solution while using the roll as an anode. When the roll is used to emboss an aluminum plate, it is possible to obtain an aluminum plate with an uneven structure ... | 11/20/2007 |
| 7217499 | Aluminum support for lithographic printing plate and base plate for lithographic printing plate An object of the present invention is to provide a support for lithographic printing plates provided with a photosensitive layer containing an acid generator and an acid-decomposable compound, that offers superior sensitivity, chemical resistance, print durability, ... | 05/15/2007 |
| 7198888 | Water-soluble material, chemically amplified resist and pattern formation method using the same A water-soluble material used for forming a water-soluble film on a chemically amplified resist film includes a water-soluble polymer, an acid generator and a compound constructing an inclusion compound for incorporating the acid generator. Also, in a pattern format... | 04/03/2007 |
| 7183038 | Lithographic printing plate precursor and lithographic printing method A lithographic printing plate precursor comprises an image-forming layer containing a polymerization initiator and a polymerizable compound, and a hydrophilic support, wherein the lithographic printing plate precursor comprises a c... | 02/27/2007 |
| 7175964 | Printing plate material and its developing process Disclosed is a manufacturing process of a printing plate material comprising a boehmite treated aluminum support, and provided thereon, an image formation layer containing water soluble resins or water dispersible resins, the process comprising the steps of surface ... | 02/13/2007 |
| 7140297 | Printing process and manufacturing process of printing plate material Disclosed is a printing process employing a printing plate material obtained by providing, on a support, a coating solution for an image formation layer capable of forming an image by heating, the process comprising the steps of imagewise heating the printing plate ... | 11/28/2006 |
| 7078154 | Presensitized plate A presensitized plate having: on an aluminum support, a thermosensitive layer containing a photothermal conversion agent which absorbs infrared rays and generates heat and a water-insoluble and alkali-soluble resin, of which solubility to an alkali aqueous solution ... | 07/18/2006 |
| 7074545 | Printing plate material Disclosed are a printing plate material capable of being developed on a printing press and its manufacturing method which comprises the steps of subjecting an aluminum plate to electrolytic surface roughening treatment, subjecting the electrolytic surface roughened ... | 07/11/2006 |
| 7026096 | Method for production of support for lithographic printing plate precursor and support for lithographic printing plate precursor A method for the production of a support for a lithographic printing plate precursor that comprises providing on a grained aluminum support having an anodic oxide film formed thereon a layer of inorganic compound particles having a major axis larger than a pore diam... | 04/11/2006 |
| 7018773 | Printing plate material and image formation method employing the same Disclosed are a printing plate material comprising a substrate and provided thereon, a component layer comprising a hydrophilic layer and an image formation layer, the hydrophilic layer being provided closer to the substrate than the image formation layer, wherein t... | 03/28/2006 |
| 7014985 | Presensitized plate A thermal negative type presensitized plate provided with an image recording layer hardened by infrared rays on an aluminum support, wherein the aluminum support has on the surface thereof, a grain shape with a structure in which a grained structure with medium undu... | 03/21/2006 |
| 6983694 | Negative-working thermal lithographic printing plate precursor comprising a smooth aluminum support A negative-working lithographic printing plate precursor is disclosed which comprises a grained and anodized aluminum support having a hydrophilic surface and a heat-sensitive coating provided on the hydrophilic surface, the coating comprising hydrophobic thermoplas... | 01/10/2006 |
| 6951171 | Planographic printing plate precursor The present invention relates to a planographic printing plate precursor comprising a substrate comprising a hydrophilic surface having disposed thereon a heat-sensitive layer containing a thermoplastic particulate polymer having functional groups capable of interac... | 10/04/2005 |
| 6928926 | Process and material for producing IR imaged gravure cylinders A gravure printing blank that can be easily and quickly imaged digitally by means of laser imaging and a method for preparing the same. The gravure printing blank comprises a metallic surface, a pre-polymer layer covering said metallic surface, comprising UV curable... | 08/16/2005 |
| 6924085 | Photoresist coatings for copper clad stainless steel printing plates A copper clad metal printing plate can be coated with an azide-containing photoresist comprising a polyformal resin together with a modified polyformal resin that has up to 100% of its hydroxyl groups converted to carboxyl groups, an organo azide and a photosensitiv... | 08/02/2005 |
| 6912956 | Printing plate material Disclosed is a printing plate material comprising a substrate and a component layer provided thereon, the substrate having a center line average surface roughness Ra of from 0.2 to 1.0 μm, and an oil-retention volume A2 of from 1 to 10, wherein the center li... | 07/05/2005 |
| 6808864 | Support for lithographic printing plate and presensitized plate Disclosed is a support for a lithographic printing plate obtained by subjecting an aluminum plate to a graining treatment and an anodizing treatment, the support comprising at least any one of Mn in a range from 0.1 to 1.5 wt % and Mg in a range from 0.1 to 1.5 wt %... | 10/26/2004 |
| 6716567 | Supporting body for lithography block and original lithography block Objects of the present invention are to provide a positive working presensitized plate of a thermal type, which has damage resistance, and which is handled easily in conventional operation, high in sensitivity and excellent in press life when used as a lithographic ... | 04/06/2004 |
| 6688228 | Planographic printing plate precursor having a support with pits Disclosed is a planographic printing plate precursor, comprising a hydrophilic support and an image forming layer containing oleophilic heat-fusible particles, wherein the hydrophilic support has voids and the void content is 20 to 40 ml/m2.... | 02/10/2004 |
| 6670099 | Support for lithographic printing plate and method of manufacturing the same A support for a lithographic printing plate with no damage in appearance such as unevenness in the form of streaks and with excellent pit homogeneity. A support for a lithographic printing plate obtained by subjecting a surface of an aluminum alloy plate ... | 12/30/2003 |
| 6655282 | Process for manufacturing a strip of aluminium alloy for lithographic printing plates A process for manufacturing a strip of aluminium or an aluminium alloy for electrolytically roughened lithographic printing plates, in which the alloy is continuously cast as a strip and then rolled to final thickness, is such that the cast strip is rolle... | 12/02/2003 |
| 6631679 | Printing plate material with electrocoated layer A process for making printing plate material suitable for imaging by laser radiation. A metal substrate is electrocoated in a bath containing a polymeric resin and laser-sensitive particles, thereby depositing a laser ablatable layer on a principal surfac... | 10/14/2003 |
| 6632584 | Laser-imageable printing members and methods for wet lithographic printing A thermosensitive composition consisting of a mixture of polyacrylic acid, a salt of a long chain fatty acid such as silver behenate, an infra-red absorbent and modifiers such as additional polymers and fillers. Both the water solubility and affinity to w... | 10/14/2003 |
| 6573022 | Positive type photosensitive image-forming material for an infrared laser and a positive type photosensitive composition for an infrared laser A positive image-forming material for use with infrared laser is provided. The material includes a substrate, a layer (A) containing not less than 50% by weight of a copolymer which contains, as a copolymerization component, not less than 10% by mol of at... | 06/03/2003 |
| 6568325 | Supports for lithographic printing plates A support for lithographic printing plate which is obtained by performing surface roughening treatments including electrolytic graining on an aluminum alloy plate containing Fe, Si, Cu, Ti, Mg and Ni in specified amounts, with the balance being Al and inc... | 05/27/2003 |
| 6555247 | Aluminum alloy plate for planographic printing plate An aluminum alloy plate for a planographic printing plate capable of being provided with a satisfactory roughed surface by electrolytic etching. The aluminum alloy plate contains 0.1 to 0.6% of Fe, 0.01 to 0.2% of Si, 5 to 150 ppm of Cu, and balance of Al... | 04/29/2003 |
| 6550387 | Processless thermal printing plate with well defined nanostructure According to the present invention there is provided a heat-sensitive material for making a negative working non-ablative lithographic printing plate including in a heat sensitive layer thermoplastic polymer beads and a compound capable of converting ligh... | 04/22/2003 |
| 6494137 | Support for lithographic printing plate and presensitized plate A support for a lithographic printing plate obtained by performing surface graining and anodizing of an aluminum alloy plate, wherein the foregoing aluminum alloy plate contains specific contents of Fe, Si, Cu, Ti, Zn and Mg, with the balance being Al and... | 12/17/2002 |
| 6487969 | Heat sensitive printing plate precursors A lithographic printing plate precursor comprises an electrochemically grained aluminium substrate, the grained surface of which is coated with a layer of gel-like amorphous colloidal oxides and hydroxides of aluminium and their hydrates incorporating met... | 12/03/2002 |
| 6475630 | Planographic printing plate, non-woven cloth roller, and method and apparatus for preliminarily polishing a metal plate for printing plate The present invention provides a planographic printing plate capable of ensuring improvement of productivity and stability of a small dot net portion due to improvement of adhesion. There is provided a planographic printing plate, characterized in that a ... | 11/05/2002 |
| 6447982 | Litho strip and method for its manufacture A litho strip for use as an offset printing plate is described which has a composition of 0.05-0.25% Si, 0.30-0.40% Fe, 0.10-0.30% Mg, max. 0.05% Mn, and max. 0.04% Cu. The strip is produced from a continuous cast ingot of the above composition which is h... | 09/10/2002 |
| 6418850 | Hydrophilized substrate for planographic printing An improved hydrophilized substrate for planographic printing is disclosed. The substrate contains a support and a hydrophilic layer over the support. The hydrophilic layer contains titanium dioxide (titania) particles. In one embodiment, the hydrophilic ... | 07/16/2002 |
| 6420091 | Method of producing lithographic printing plate A method of producing a lithographic printing plate which comprises subjecting a printing plate precursor comprising a support having a metallic compound layer which has a photo-catalytic property and a hydrophilic surface and bears light-heat convertible... | 07/16/2002 |
| 6337136 | Aluminum alloy support for lithographic printing plate and process for producing substrate for support The present invention provides a support for a lithographic printing plate prepared by cold rolling a sheet while intermediate annealing is omitted to save energy and the number of the cold rolling steps are decreased to simplify the sheet production step... | 01/08/2002 |
| 6324978 | Printing plate substrate and method of making a printing plate substrate or an offset printing plate The invention relates to a printing plate substrate made of a rolled and embossed aluminum strip, wherein the surface has depressions with an average diameter of | 12/04/2001 |
| 6300040 | Lithographic imaging with constructions having mixed organic/inorganic layers The effects of interfacial transition between organic and inorganic layers of a lithographic printing member are ameliorated by incorporating an inorganic component within the matrix of the organic layer. In a first aspect, a lithographic printing plate h... | 10/09/2001 |
| 6293197 | Hydrophilized substrate for planographic printing An improved hydrophilized substrate for planographic printing is disclosed. The substrate contains a support and a hydrophilic layer over the support. The hydrophilic layer contains titanium dioxide (titania) particles. In one embodiment, the hydrophilic ... | 09/25/2001 |
| 6270938 | Acetal copolymers and use thereof in photosensitive compositions The present invention relates to particular acetal copolymers and radiation-sensitive compositions comprising said copolymers and, inter alia, are excellently suitable for the production of lithographic printing plates. In particular, the invention relate... | 08/07/2001 |
| 6238839 | Lithographic printing plate precursor A lithographic printing plate precursor which comprises a metal support having provided thereon a heat-insulating layer, a metal layer having a hydrophilic surface, and a lipophilic layer which is abraded by heating or whose solubility to alkali is transf... | 05/29/2001 |
