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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...
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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),...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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%...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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