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| Number | Title | Issue Date |
| 8187793 | Ablatable elements for making flexographic printing plates Flexographic printing plates and other relief images can be formed from a laser-ablatable element having a laser-ablatable layer that is at least 20 μm in thickness. The laser-ablatable layer includes a film-forming material that is a laser-laser-ablatable material... | 05/29/2012 |
| 8187794 | Ablatable elements for making flexographic printing plates Flexographic printing plates and other relief images can be formed from a laser-ablatable element having a laser-ablatable layer that is at least 20 μm in thickness. The laser-ablatable layer includes a film-forming material that is a laser-laser-ablatable material... | 05/29/2012 |
| 8163465 | Ablatable elements for making flexographic printing plates Flexographic printing plates and other relief images can be formed from a laser-ablatable element having a laser-ablatable layer that is from about 300 to about 4,000 μm in thickness. The laser-ablatable layer includes a film-forming material that is a laser-laser-... | 04/24/2012 |
| 8158331 | Method of improving print performance in flexographic printing plates A method of making a relief image printing element from a photosensitive printing blank is provided. A photosensitive printing blank with a laser ablatable layer disposed on at least one photocurable layer is ablated with a laser to create an in situ mask. The print... | 04/17/2012 |
| 8105756 | Method for preparing a printing form using vibrational energy A method and apparatus for preparing a relief printing form from a photosensitive element that includes a photopolymerizable composition layer having an exterior surface and capable of being partially liquefied. The method includes the steps of (a) heating the exter... | 01/31/2012 |
| 8076054 | Composition for forming adhesive layer and relief printing plate using the same, and method for manufacturing relief printing plate A composition for forming an adhesive layer which results in strong adhesion force between a substrate and a photosensitive resin layer, and which does not cause transfer of the constituting components to the substrate, a relief printing plate using the same, and a ... | 12/13/2011 |
| 8034540 | System and method employing secondary back exposure of flexographic plate A method of making a relief image on a flexographic print plate including imagewise exposing a mask including an imageable material disposed on a mask substrate to form an imaged mask having a mask image in the imageable material disposed on the mask substrate, the ... | 10/11/2011 |
| 8007984 | Method for producing flexographic printing forms by thermal development Flexographic printing plates are produced by thermal development by a process in which an imagewise exposed flexographic printing element is developed by heating and removing the softened, unpolymerized parts of the relief-forming layer, the flexographic printing el... | 08/30/2011 |
| 8003299 | Photosensitive original printing plate for relief printing, method for producing relief printing plate, and light-shielding ink for performing the method Provided are an original printing plate for relief printing that solves both the problems of the prior-art negative film or its alternatives, and problems of mask pattern formation directly on the surface of the photosensitive resin layer by an ink composition, as w... | 08/23/2011 |
| 7964335 | Ink receptive photosensitive laminate The present invention is directed to an ink receptive film and methods of using the ink receptive film. The ink receptive film is generally suitable for etching patterns into substrates, and typically includes a photosensitive laminate structure containing at least ... | 06/21/2011 |
| 7947427 | Printing element with an integrated printing surface A relief image printing element with an integral imageable printing surface and a method of preparing the relief image printing element are described. The relief image printing element comprises a dimensionally stable base layer; a floor layer comprised of a cured p... | 05/24/2011 |
| 7910287 | Relief printing plate, and method for manufacturing electronic circuit pattern, organic electroluminescence device and organic electronic device by using the same An embodiment of the present invention is a relief printing plate for forming a high-definition pattern by a printing method, having a convex part comprising a resin layer, a base material supporting the convex part and a light reflection controlling layer, the ligh... | 03/22/2011 |
| 7811744 | Material for infrared laser ablated engraved flexographic printing plates A non-photosensitive flexographic liquid or paste precursor comprising a mixture of acrylate oligomers and acrylic or methacrylate monomers, infrared absorbing material, fillers and heat decomposable peroxide, which when heated forms a non-thermoplastic elastomeric ... | 10/12/2010 |
| 7759049 | Photosensitive resin composition for original printing plate capable of being carved by laser A photosensitive resin composition for forming a laser engravable printing element, comprising: (a) 100 parts by weight of a resin which is in a solid state at 20° C., wherein the resin has a number average molecular weight of from 5,000 to 300,000, (b) 5 to 200 pa... | 07/20/2010 |
| 7632625 | Method of pre-exposing relief image printing plate The present invention is directed to a method of selectively pre-exposing a photosensitive printing element prior to imagewise exposure in order to remove oxygen from the photosensitive layer prior to imagewise exposure. The invention is usable in a computer-to-plat... | 12/15/2009 |
| 7425400 | Planographic printing plate precursor A planographic printing plate precursor, including: a substrate; a photosensitive layer containing an IR absorber, a polymerization initiator, a polymerizable compound and a binder polymer; and a protective layer containing a UV absorber, disposed in this order. The... | 09/16/2008 |
| 7422840 | Apparatus and process for forming a printing form having a cylindrical support The invention pertains to an apparatus and a process for forming a printing form from a photosensitive element having a cylindrical support, and in particular, to an apparatus and a process for thermally treating the photosensitive element to form a relief pattern a... | 09/09/2008 |
| 7419766 | Flexographic printing plate precursor and imaging method A laser imageable flexographic printing plate precursor comprises a thermoset elastomeric upper layer that is at least partially ablatable and comprises a radiation sensitive compound, and a non-ablatable elastomeric underlayer. This flexographic printing plate prec... | 09/02/2008 |
| 7413849 | Substituted benzene developing solvent for photopolymerizable printing plates Flexographic printing plates are produced by exposing the photopolymer plates to a light source and washing out (developing) the masked out, non-exposed areas with a solvent. The invention provides substituted benzene solvents suitable for use in the development of ... | 08/19/2008 |
| 7399575 | Laminated photosensitive relief printing original plate and method for producing the relief printing plate A relief printing original plate including a substrate, a photosensitive resin layer thereon that is photosensitive to ultraviolet radiations, and a mask layer thereon having both ultraviolet and non-ultraviolet absorbability, the ultraviolet absorbability being dea... | 07/15/2008 |
| 7358026 | Method for thermal development of a photosensitive element using a development medium having a support This invention relates to a method for thermally developing a photosensitive element to form a relief pattern. The method includes heating a composition layer of the element to cause a portion of the layer to liquefy and providing a development medium under tension ... | 04/15/2008 |
| 7348123 | Process for preparing a flexographic printing plate A flexographic printing plate is prepared from a photosensitive element having a photopolymerizable elastomeric layer with specific rheological properties. The element is imagewise exposed and thermally treated to form a relief structure suitable for flexographic pr... | 03/25/2008 |
| 7338749 | Process for making flexographic printing plate A process for making a flexographic printing plate is provided, the process including a step of forming an image mask on a flexographic printing starting plate by discharging an oil-based ink by an ink-jet method, the flexographic printing starting plate having a su... | 03/04/2008 |
| 7318985 | Block copolymer composition for photosensitive flexographic plate A composition for photosensitive flexographic plates which is capable of forming a sheet having a smooth surface and excellent antiflowing properties and less apt to have trouble caused by sticking and which further has excellent thin-line reproducibility; a block c... | 01/15/2008 |
| 7318994 | Compressible flexographic printing plate construction The present invention relates to an improved compressible flexographic printing plate that uses a compressible layer comprising a polyurethane (meth)acrylate resin and microspheres. The process of the invention produces a chemically fused printing plate that elimina... | 01/15/2008 |
| 7309550 | Photosensitive composition with low yellowing under UV-light and sunlight exposure This disclosure relates to a photosensitive composition useful in preparing water-developable, relief printing plates and other photosensitive articles. The compositions comprise an unsaturated polyurethane pre-polymer, which is the reaction product of at least one ... | 12/18/2007 |
| 7300726 | Multi-layer imageable element with improved properties Positive-working imageable elements comprise a radiation absorbing compound and inner and outer layers on a substrate having a hydrophilic surface. The inner layer comprises a combination of two different polymeric binders one of which has an acid number of at least... | 11/27/2007 |
| 7294673 | Method of modifying polymeric material and use thereof A method of modifying a polymeric material whereby the polymeric material is modified to give a highly durable surface without decreasing its strength. Namely, a polymeric material is modified by the method comprising a combination of an impregnation step, an activa... | 11/13/2007 |
| 7290487 | Method for producing flexo printing forms by means of laser direct engraving Flexographic printing plates are produced by means of direct laser engraving by a process in which the starting material used is a flexographic printing element, the relief-forming layer of which has a combination of a substantially hydrophobic, elastomeric binder a... | 11/06/2007 |
| 7291443 | Polymerizable composition and image-recording material using the same A polymerizable composition contains (A) a dye which is soluble in an organic solvent and in an alkaline aqueous solution and has an absorption in 700 to 1200 nm, (B) a radical polymerization initiator, (C) a compound having an ethylenically unsaturated bond, and (D... | 11/06/2007 |
| 7284484 | Laser ablating of printing plates and/or printing rollers to decrease taper and TIR Apparatus for reducing variations in total indicated run-out and taper in a printing roller, includes a detector which detects variations in total indicated run-out and taper in a surface of the printing roller, and a laser which ablates the surface of the printing ... | 10/23/2007 |
| 7279254 | Method of making an article bearing a relief image using a removable film The invention is directed to methods of making an article bearing a relief image using a removable film. First, an imageable film that contains at least a mask substrate and an imageable material is imagewise exposed to imaging radiation to form an imaged film. The ... | 10/09/2007 |
| 7279255 | Negative-working radiation-sensitive compositions and imageable materials A radiation-sensitive composition includes a radically polymerizable component and a borate initiator composition capable of generating radicals sufficient to initiate polymerization of the radically polymerizable component upon exposure to imaging radiation. This c... | 10/09/2007 |
| RE39835 | UV-absorbing support layers and flexographic printing elements comprising same The present invention provides a method for producing direct-imaged flexographic printing elements such that both the front and back exposure times are economically efficient for the manufacturer. In one embodiment, the method comprises providing at least one solid ... | 09/11/2007 |
| 7265772 | Beam illumination system and method for producing printing plates Images are transferred to printing plates by illuminating light-responsive materials with patterns corresponding to the images to be printed. The present invention provides for the transferring of an image by the combined flux from two or more beams of light. Partic... | 09/04/2007 |
| 7258956 | Printing plates comprising modified pigment products The present invention discloses printing plates comprising a substrate and a radiation-absorptive layer, wherein the radiation-absorptive layer comprises at least one modified pigment product. The modified pigment product comprises a pigment having attached at least... | 08/21/2007 |
| 7258964 | Printing plates using binder resins having polyethylene oxide segments The present invention relates to a polymerizable coating composition suitable for the manufacture of printing plates, which may be developable on-press. The coating composition comprises (i) a polymerizable compound and (ii) a polymeric binder comprising polyethylen... | 08/21/2007 |
| 7255976 | Laser-engravable flexo printing elements for the production of flexo printing forms containing blends of hydrophilic polymers and hydrophobic elastomers Laser-engravable flexographic printing elements for the production of flexographic printing plates have relief layers comprising blends of hydrophilic polymers and hydrophobic elastomers. Said flexographic printing elements are used for the production of flexographi... | 08/14/2007 |
| 7252923 | Methods for producing pattern-forming body A method of producing a pattern-forming body with high accuracy with no need for a post-exposure treatment and without allowing any photocatalyst to remain in the resultant pattern-forming body and whereby any problematic effect of the photocatalyst in the pattern-f... | 08/07/2007 |
| 7241540 | Photocurable compositions and flexographic printing plates comprising the same The present invention relates to photocurable compositions for use in flexographic printing plates comprising selectively hydrogenated block copolymers of conjugated dienes and monoalkenyl arenes and flexographic printing plates made from the same. The block copolym... | 07/10/2007 |
