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公开(公告)号：DE3222484A1
公开(公告)日：1982-12-30
申请号：DE3222484
申请日：1982-06-15
Applicant: POLYCHROME CORP
Inventor： SHELNUT JAMES , GOLDA EUGENE , WILKES ALAN , SHIMAZU KEN-ICHI
Abstract: A colored, positive-acting, radiation-sensitive composition whose color is extinguished or greatly decreased in intensity upon irradiation comprising at least one acid-free resin, at least one component which upon irradiation yields acidic and/or free radical products, at least one acid and/or free radical sensitive dyestuff and at least one positive-acting component; positive-acting elements comprising suitable support materials at least one surface of which has been coated with the above composition and lithographic printing plates comprising the above elements, wherein the support materials are lithographically suitable support materials, whch have been imagewise exposed to radiation whereby there is a high contrast, before development, between the colored image areas and less intensely colored or colorless non-image areas, the image areas of said plates being additionally highly stable against aqueous alkaline developers after development to remove the exposed non-image areas of the composition and more highly colored than the non-image areas of the revealed substrate surface.
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公开(公告)号：AU8486482A
公开(公告)日：1982-12-23
申请号：AU8486482
申请日：1982-06-15
Applicant: POLYCHROME CORP
Inventor： SHELNUT JAMES , GOLDA EUGENE , WILKES ALAN , SHIMAZU KEN-ICHI
Abstract: A colored, positive-acting, radiation-sensitive composition whose color is extinguished or greatly decreased in intensity upon irradiation comprising at least one acid-free resin, at least one component which upon irradiation yields acidic and/or free radical products, at least one acid and/or free radical sensitive dyestuff and at least one positive-acting component; positive-acting elements comprising suitable support materials at least one surface of which has been coated with the above composition and lithographic printing plates comprising the above elements, wherein the support materials are lithographically suitable support materials, whch have been imagewise exposed to radiation whereby there is a high contrast, before development, between the colored image areas and less intensely colored or colorless non-image areas, the image areas of said plates being additionally highly stable against aqueous alkaline developers after development to remove the exposed non-image areas of the composition and more highly colored than the non-image areas of the revealed substrate surface.
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公开(公告)号：AU3602578A
公开(公告)日：1979-11-15
申请号：AU3602578
申请日：1978-05-11
Applicant: POLYCHROME CORP
Inventor： GOLDA EUGENE , WILKES ALAN LEONARD , CHU SIMON LONG
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公开(公告)号：AU3366478A
公开(公告)日：1979-09-06
申请号：AU3366478
申请日：1978-02-28
Applicant: POLYCHROME CORP
Inventor： CHU SIMON LONG , GOLDA EUGENE , WILKES ALAN LEONARD
Abstract: A method for preparing aluminum based lithographic printing plates which comprises treating at least one surface of an aluminum base sheet with an interlayer composition, thereafter anodizing the thus treated aluminun surface, optionally retreating the coated, anodized aluminum plate with another stratum of the interlayer composition and then applying to said surface a suitable light sensitive composition to yield the desired photosensitive lithographic printing plate of improved characteristics.
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公开(公告)号：AU4179078A
公开(公告)日：1979-08-23
申请号：AU4179078
申请日：1978-11-22
Applicant: POLYCHROME CORP
Inventor： GOLDA EUGENE , WILKES ALAN
Abstract: NEGATIVE WORKING LITHOGRAPHIC PRINTING PLATES WHOSE COATING COMPRISES THE ADMIXTURE OF ACRYLATED ESTERS OF EPOXY RESINS WITH NEGATIVE WORKING LITHOGRAPHIC SENSITIZERS ARE FORMED, WHEREBY THE NON-IMAGE AREAS ARE REMOVABLE BY AQUEOUS ALKALI DEVELOPERS.
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Patent Agency Ranking
公开(公告)号：NO774517L
公开(公告)日：1978-11-21
申请号：NO774517
申请日：1977-12-30
Applicant: POLYCHROME CORP
Inventor： GOLDA EUGENE , WILKES ALAN LEONARD , CHU SIMON LONG
Abstract: A method for producing a water developable lithographic printing plate which comprises treating at least one surface of a metal sheet substrate with a layer of a lithographically suitable, light sensitive, water soluble substance and subsequently coating the thus treated base sheet with an upper layer of a water insoluble, ink receptive, lithographically suitable photosensitive composition. Said photosensitive layers must be either both positive working or both negative working. Upon imagewise exposure through a mask by standard methods the exposed areas of said upper photosensitive composition are alternatively characterized as either water permeable or water impermeable and the unexposed areas are alternatively water impermeable or water permeable as opposed to the exposed areas. Upon said imagewise exposure, the exposed lower level areas in a negative system are rendered water insoluble whereas the exposed lower level areas in a positive system are rendered more water soluble than the unexposed areas.
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公开(公告)号：DE2805219A1
公开(公告)日：1978-09-07
申请号：DE2805219
申请日：1978-02-08
Applicant: POLYCHROME CORP
Inventor： CHU SIMON LONG , GOLDA EUGENE , WILKES ALAN LEONARD
Abstract: A method for preparing aluminum based lithographic printing plates which comprises treating at least one surface of an aluminum base sheet with an interlayer composition, thereafter anodizing the thus treated aluminun surface, optionally retreating the coated, anodized aluminum plate with another stratum of the interlayer composition and then applying to said surface a suitable light sensitive composition to yield the desired photosensitive lithographic printing plate of improved characteristics.
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公开(公告)号：DE1793179A1
公开(公告)日：1972-03-30
申请号：DE1793179
申请日：1968-08-12
Applicant: POLYCHROME CORP
Inventor： GOLDA EUGENE
Abstract: 1,207,878. Diazonium compounds. POLYCHROME CORP. 14 Aug., 1968 [14 Aug., 1967], No. 38870/68. Heading C2C. [Also in Divisions C3 and G2] A storage-stable, moisture-resistant, lightsensitive diazonium compound is prepared by reacting a water-soluble, light - sensitive diazo arylamine and a hydroxyl containing aromatic coupling agent in an aqueous medium having a pH between 1À5 and 7À5 while avoiding resinification of the product, forming the diazonium compound as a water-insoluble precipitate, separating the precipitate and recovering the product in dry powdered form.
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公开(公告)号：FR2509229B1
公开(公告)日：1986-03-28
申请号：FR8208505
申请日：1982-05-14
Applicant: POLYCHROME CORP
Inventor： HERTING HANS PETER , HUANG JEN-CHI , GOLDA EUGENE
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公开(公告)号：AU549200B2
公开(公告)日：1986-01-16
申请号：AU8486482
申请日：1982-06-15
Applicant: POLYCHROME CORP
Inventor： SHELNUT JAMES , GOLDA EUGENE , WILKES ALAN , SHIMAZU KEN-ICHI
Abstract: A colored, positive-acting, radiation-sensitive composition whose color is extinguished or greatly decreased in intensity upon irradiation comprising at least one acid-free resin, at least one component which upon irradiation yields acidic and/or free radical products, at least one acid and/or free radical sensitive dyestuff and at least one positive-acting component; positive-acting elements comprising suitable support materials at least one surface of which has been coated with the above composition and lithographic printing plates comprising the above elements, wherein the support materials are lithographically suitable support materials, whch have been imagewise exposed to radiation whereby there is a high contrast, before development, between the colored image areas and less intensely colored or colorless non-image areas, the image areas of said plates being additionally highly stable against aqueous alkaline developers after development to remove the exposed non-image areas of the composition and more highly colored than the non-image areas of the revealed substrate surface.
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