| Patent application number | Description | Published |
|---|
| 20080206674 | Dual-Layer Heat-Sensitive Imageable Elements with a Polyvinyl Acetal Top Layer - Thermally imagable elements are described comprising on a substrate with hydrophilic surface (a) a first layer comprising a first polymer soluble or swellable in aqueous alkaline developer and insoluble in organic solvents with low polarity and (b) a second layer comprising a second polymer soluble or swellable in aqueous alkaline developer, wherein the first polymer is different from the second polymer and the second polymer comprises vinyl acetal repeating units and pendant acidic groups selected from COOH, —SO | 08-28-2008 |
| 20080227023 | PROCESSING POSITIVE-WORKING IMAGEABLE ELEMENTS WITH HIGH pH DEVELOPERS - A positive-working imageable element comprises inner and outer layers. The ink receptive outer layer includes a phenolic resin binder that is soluble in a developer having a pH greater than 11. Dissolution suppressing components for the phenolic resin binder are generally excluded from the outer layer or present at a very low amount. | 09-18-2008 |
| 20090017399 | IMAGEABLE ELEMENTS WITH LOW PH DEVELOPER SOLUBILITY - Single- and multi-layer positive-working imageable elements include an ink receptive outer layer includes a primary polymeric binder that is a poly(vinyl phenol) or a phenolic polymer having certain acidic groups. The use of this type of polymeric binder makes the imaged elements developable in low pH (11 or less) alkaline developers. | 01-15-2009 |
| 20090061352 | IMAGEABLE ELEMENTS WITH IMPROVED ABRASION RESISTANCE - Single- and multi-layer positive-working imageable elements include an ink receptive outer layer that includes inorganic, non-metallic, inert discrete particles, such as nano-sized silica, aluminum oxide, or titanium dioxide particles. The presence of these particles in the outermost layer improves the abrasion and scratch resistance of the elements. | 03-05-2009 |
| 20090142695 | IMAGEABLE ELEMENTS WITH COMPONENTS HAVING 1H-TETRAZOLE GROUPS - Radiation-sensitive compositions and imageable elements include a polymeric or non-polymeric component in an imageable layer, which component includes 1H-tetrazole groups. The non-polymeric components can be radically polymerizable compounds. The polymeric components can have 1H-tetrazole groups that are pendant to the backbone. The use of such components in negative- or positive-working imageable elements provides high photospeed and improved developability for providing imaged and developed elements, such as lithographic printing plates that show improved chemical resistance and run length. | 06-04-2009 |
| 20090202938 | METHOD OF IMPROVING SURFACE ABRASION RESISTANCE OF IMAGEABLE ELEMENTS - A computer-to-press multi-layer, positive-working imageable element has improved surface abrasion resistance from a micro-roughening of the outermost surface. This improvement is provided by spraying a solution consisting essentially of one or more dissolved organic resins in a solvent onto the outermost imageable layer of the imageable element. The one or more organic resins are soluble or dispersible in an aqueous alkaline solution and are present in the sprayed solution in an amount of at least 3 weight %. The sprayed solution is applied to deposit at least 10 mg/m | 08-13-2009 |
| 20090233227 | NEGATIVE-WORKING IMAGEABLE ELEMENTS WITH IMPROVED ABRASION RESISTANCE - Negative-working imageable elements are prepared with radiation-sensitive imageable layers that contain surface-modified silica particles such as fumed silica particles and sol-gel silica particles, that are present in an amount of from about 1 to about 40 weight %, have an average particle size of from about 1 to about 500 nm, have surface hydroxy groups, and have a carbon content of from about 0.5 to about 15 weight % that is derived from surface hydrophobic groups having 1 to 30 carbon atoms. The presence of the surface-modified silica particles provides improved abrasion resistance, reduced tackiness, and various other desired properties. | 09-17-2009 |
| 20090291395 | METHODS FOR IMAGING AND PROCESSING POSITIVE-WORKING IMAGEABLE ELEMENTS - An imaged and developed element, such as a lithographic printing plate, is provided by infrared radiation imaging of a positive-working imagable element having inner and outer imagable layers. One or both layers contain a polymeric binder having pendant 1H-tetrazole groups. The imaged element is developed with a single processing solution having a pH of from about 5 to about 11 to remove predominantly only the exposed regions and to provide a protective layer over the imaged surface. | 11-26-2009 |
| 20090317601 | Apparatus and method for treating imaging materials - An apparatus and method for improving the durability of an image on an imaging material, including increasing the press run length or a printing plate. The apparatus and method can involve the use of, as an example but not restricted to, an imaging device, a pre-bake oven, a processor, and a post-process treatment unit that employs infrared lamps adapted to irradiate the image. | 12-24-2009 |
| 20110097666 | LITHOGRAPHIC PRINTING PLATE PRECURSORS - Lithographic printing plate precursors can have an imageable layer that includes a polymeric binder having an acid number of 40 meq/g KOH or more, at least 3 weight % of recurring units derived from one or more N-alkoxymethyl (alkyl)acrylamides or alkoxymethyl(alkyl)acrylates, at least 2 weight % of recurring units having pendant 1H-tetrazole groups, and at least 10 weight % of recurring units having pendant cyano groups. The use of such polymeric binders provides good bakeability and chemical solvent resistance, especially for positive-working precursors. | 04-28-2011 |
