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7582410 Laser-decomposable resin composition and pattern-forming material using the same  
A laser-decomposable resin composition contains: a compound including at least one structure selected from a carboxyl group and a carboxylic acid anhydride structure and at least one hetero atom...
7544463 Photosensitive structure for flexographic printing  
A photosensitive structure for flexographic printing having a support (A) and, laminated thereon, an adhesive layer (B) and a photosensitive resin layer (C) different from said adhesive layer (B),...
7503258 Method and apparatus for thermal development with development medium remover  
This invention relates to a method and apparatus for thermally developing a photosensitive element. The thermal development method includes heating the photosensitive element to a temperature...
7491003 Method and apparatus for thermal development with vapor treatment  
This invention pertains to a method and apparatus for thermally developing a photosensitive element. The photosensitive element includes a composition layer capable of being partially liquefied...
7470490 Material film for a mask film, process for producing a mask film using the material film and process for producing a printing plate of a photosensitive resin  
A material film for a mask film comprising a substrate film transmitting ultraviolet light and a resin layer not transmitting ultraviolet light disposed on one face of the substrate film, the resin...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
7241124 Apparatus for the rapid development of photosensitive printing elements  
This invention pertains to a system for thermally treating a photosensitive element to form a relief structure suitable for flexographic printing. The system of the invention comprises a plurality...
7237482 Flexo processor  
An improved flexo processor and a method of using the improved flexo processor to increase the flexibility of both the type and the size of the flexographic printing element that may be processed....
7235346 Photosensitive, flexo printing element and method for the production of newspaper flexo printing plates  
The present invention relates to a photosensitive flexographic printing element for the production of flexographic newspaper printing plates, comprising at least a flexible, metallic support, an...
7232649 Method for thermally processing photosensitive printing sleeves  
An improved method of manufacturing a photosensitive printing element that minimizes relief variation and improves image fidelity. The method involves a step of pre-curing the first (floor layer)...
7226709 Digital mask-forming film and method of use  
A masking film has a unique polymeric binder in the imageable layer that enables the imaged film to be readily solubilized in non-chlorinated developers when it is used to form a relief image in a...
7223524 Laser-engravable flexographic printing element containing a conductive carbon black and method for production of flexographic printing forms  
In a laser-engravable flexographic printing element, the relief-forming layer comprises a conductivity carbon black having a specific surface area of at least 150 m 2 /g and a DBP number of at...
7205094 Coating fluid for printing plates and method of making a printing plate  
A coating fluid for printing plates which can be suitably used to make printing plates that permit images to be written in response to input digital data and that can be easily regenerated and...
7205087 Solvents and photoresist compositions for 193 nm imaging  
New photoresists are provided that are suitable for short wavelength imaging, including sub-200 nm, particularly 193 nm. Resists of the invention comprise a polymer that is preferably substantially...
7202008 Thermal development system and method of using the same  
An improved apparatus and a method of using the apparatus to remove non-crosslinked photopolymer from an imaged and exposed surface of a relief image printing element. Included are means for...
7183041 Printing plate in the form of a roller and method for obtaining same  
The invention concerns a printing plate in the form of a roller and a method for obtaining same. Said method consists in producing on a first layer, at least a photopolymer film and in coiling said...
7159511 Method of manufacturing print belts  
A manufacturing line for manufacturing a print belt comprising a support-forming strip and a photopolymerized resin forming printing characters, the line comprises spreader means adapted to spread...
7157210 Plate-making method, plate-making apparatus used in such plate-making method, and image recording material  
A plate-making method is capable of recording a sharp image on a photosensitive plate, and is applicable to a process operation executed in a light room, while adverse influences caused by laser...
7152529 System for thermal development of flexographic printing plates  
The present invention is directed to a method and a system for forming a relief image on a photosensitive printing element. The system comprises an enclosure housing a conveyor and a heatable...
7126724 Flexographic printing  
A method of screening a continuous tone image into a halftone representation for a flexographic printing operation can compensate for characteristic printing problems in highlight areas by...
7125650 Method for bump exposing relief image printing plates  
A process of producing a relief image printing plate, the process comprising the steps of providing a photosensitive printing element, quenching dissolved oxygen in the photosensitive resin layer...
7122295 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...
7101657 Image-forming method and developer  
An image-forming member excellent in the developing ability and printing durability can be obtained and images can be formed without being accompanied by any accumulation of scum in a developing...
7101653 Laser-engravable flexographic printing elements having relief-forming elastomeric layers comprising syndiotactic 1,2-polybutadiene  
A laser-engravable flexographic printing element comprising an elastomeric, relief-forming, laser-engravable, thermally and/or photochemically crosslinkable layer comprising, as binder, at least 5%...
7097957 Photosensitive resin laminate  
A photosensitive resin laminate comprising at least a support, a photosensitive resin layer and an IR ablation layer, wherein the IR ablation layer comprises an IR absorbent metal layer which is...
7083896 Highly reflective substrates for the digital processing of photopolymer printing plates  
An improved digitally imageable relief printing element having an increased direct-cure imaging speed upon exposure to lasers and other digital sources of actinic radiation. The printing elements...
7060417 Edge cure prevention process  
An automated method of preventing edge curing of cut surfaces of photosensitive printing elements is disclosed. Once a photosensitive printing element is cut in a pattern of a desired size and...
7056642 Method of graft polymerization and variety of materials utilizing the same as well as producing method thereof  
A method of graft polymerization which includes a step of forming a polymerization initiating layer in which a polymer having, on a side chain thereof, a crosslinking group and a functional group...
7055429 Edge cure prevention process  
An inkjet printer is used to apply an ink that is substantially opaque to actinic radiation in at least one wavelength region effective to cure the photosensitive printing plate to the edges and...
7049047 Imageable element with masking layer comprising sulfated polymer  
Thermally imageable elements comprising a masking layer and a substrate are disclosed. The masking layer contains a sulfated polymer or a mixture of sulfated polymers and absorbs both infrared and...
7049045 Multilayer imageable elements  
Multilayer, positive working, thermally imageable, bakeable imageable elements are disclosed. The elements have a substrate, an underlayer, and a top layer. The underlayer comprises a resin or...
7044055 System for thermal development of flexographic printing plates  
The present invention is directed to a method and a system for forming a relief image on a photosensitive printing element. The system comprises an enclosure housing a conveyor and a heatable...