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11. 发明专利

DE1169467B 未知
公开(公告)号：DE1169467B
公开(公告)日：1964-05-06
申请号：DEL0031619
申请日：1958-10-31
申请人： LITHOPLATE INC
发明人： DEAL ELMER FRANK , RICHLIN ISADOR M
IPC分类号： B41N3/03 , C09D161/20
摘要： 907,289. Photo-lithographic printing-plate. LITHOPLATE Inc. Oct. 14, 1958 [Nov. 1, 1957], No. 32782/58. Class 98 (2). A support is treated with a modified melamine-aldehyde resin in aqueous dispersion or solution to result in a hydrophilic layer, and then with a light-sensitive diazo compound which becomes hydrophobic and insoluble on exposure. The support may be of paper, resin impregnated paper or, particularly, of metal, the resin therefor of alkylated methylol melamine-formaldehyde wherein methyl or ethyl alcohol is used for etherification, or polyalkylenepolyamine - melamine - formaldehyde for which modification a number of short and long chain polyamines and polyimines are quoted. Descriptions of producing the resins are provided and amplified by references to foreign Specifications concerning such, and the diazo sensitizers are mainly disclosed by similar references. Eight examples describe production of the resin layers and treatment thereof with the condensation product of paraformaldehyde and p-diezo-diphenylamine sulphate as sensitizer.

12. 发明专利

DE1164433B 未知
公开(公告)号：DE1164433B
公开(公告)日：1964-03-05
申请号：DEL0033286
申请日：1959-05-22
申请人： LITHOPLATE INC
发明人： DEAL ELMER FRANK , ADAMS DOLOR NAPOLEON
IPC分类号： B41N3/03

13. 发明专利

DE6901601U 未知
公开(公告)号：DE6901601U
公开(公告)日：1972-03-23
申请号：DE6901601
申请日：1969-01-16
申请人： LITHOPLATE INC
IPC分类号： G03F7/021

14. 发明专利

GB1215437A LACQUER EMULSION FOR LITHOGRAPHIC PLATES AND METHOD FOR THEIR MANUFACTURE 未知
公开(公告)号：GB1215437A
公开(公告)日：1970-12-09
申请号：GB1318869
申请日：1969-03-13
申请人： LITHOPLATE INC
发明人： THOMAS DANIEL CHARLES , HATHAWAY CHARLES THOMAS
IPC分类号： B41N3/08
摘要： 1,215,437. Preparing lithographic plates. LITHOPLATE, Inc. March 13, 1969, No.13188/69. Heading G2M. [Also in Division C3] A lacquer emulsion for treating exposed lithographic plates, comprising a two-phase liquid emulsion including in combination (1) an aqueous phase containing a densensitizer for removing unexposed areas from said plate, and (2) a non-aqueous phase comprising as the major ingredients (a) an essentially water-insoluble solvent having a solubility of no more than 2À4 grams per 100 ml of water at room temperature and (b) a water-insoluble oleophilic resin dissolved in said solvent, said resin being of the type resistant to lithographic fountain solutions. lithographic inks, weak acids, alcohols, aliphatic hydrocarbons, and drying oils and having water absorption less than 5%, said resin having when dry, a Rockwell hardness of M-50 to M-100, an impact strength of one to twenty foot pounds per inch of notch, flexural strength between 1000 and 23,000 p.s.i., and tensile strength of 1000 to 13,000 p.s.i., Said non-aqueous phase being dispersed in said aqueous phase with the particle size of the resin particles being between one and five hundred microns. The densensitizer is a hydrophilic colloid e.g. gum arabic and/or carboxymethyl cellulose and an acid desensitizing agent. The aqueous phase preferably contains a solid thickener, e.g. silica. Specified resins are acrylic ester copolymers, polyvinyl formal, vinyl chlorideacetate, vinylidene chloride-acylonitrile, polycarbonates, polystyrene, polyester, polyurethane, silicones, cellulose acetate and bisphenol A- epichlorhydrin condensates, commercial products being employed in the Examples. There are dissolved preferably in cyclohexanone. Optional additives are colourants, non-ionic surfactant and a water-miseible solvent which slows down evaporation of the organic resin solvent, particularly carbitol acetate and isophorone. The lacquers can be used on plates using diazo or cinnamate light-sensitive materials.

15. 发明专利

FR2031703A5 Lithographic plates prodn. - using a lacquer emulsion contg. phenoxy resin and opt., UF or MF resins 未知
公开(公告)号：FR2031703A5
公开(公告)日：1970-11-20
申请号：FR6902453
申请日：1969-02-04
申请人： LITHOPLATE INC
IPC分类号： B41N3/08 , G03F1/00
摘要： A lacquer emulsion for printing plate comprising a two-phase liquid composition having an aqueous phase of desensitising soln. and a non-aqueous resinous phase contg. a high mol. wt. phenoxy resin contg. units: where R, R' are H or hydroxide. The emulsion may contain in non-aqueous phase a second resin UF or MF to decrease the solvent retention of the resin film deposited on the image. The aq. phase may include a thickening agent and the non-aqueous phase may have a wetting agent and a pigment. The lacquer emulsion is chemically stable and provides lithographic printing plates with good press life and sinking and printing qualities.

16. 发明专利

GB920268A Lithographic plate-base 未知
公开(公告)号：GB920268A
公开(公告)日：1963-03-06
申请号：GB3345859
申请日：1959-10-02
申请人： LITHOPLATE INC
IPC分类号： B41N3/03
摘要： 920,268. Lithographic plate base. LITHOPLATE Inc. Oct. 2, 1959 [Oct. 3, 1958], No. 33458/59. Class 98 (2). A base member is provided with a coating formed by applying successively (1) a waterdispersible amine modified urea-formaldehyde resin, alkali metal sulphurous acid salt modified urea-formaldehyde resin, alkylated methylol melamine resin or melamine-formaldehyde- -polyalkylene-polyamine resin, said resin being uncured on the base member, (2) a water dispersible polyhydroxy organic compounder or polycarboxy compound; and (3) a watersoluble salt or zirconium, hafnium, titanium or thorium. These metal salts appear to act as curing agents for the previously applied materials and the resulting coating adheres firmly to the base member, has an hydrophilic surface and is substantially free of unreacted salts of the metals. In Example 1 a cleaned and desmutted aluminium sheet is immersed successively in a dispersion of polyalkylenepolyaminemelamine - formaldehyde resin, a solution of carboxymethyl cellulose containing gluconic acid and then one of zirconium acetate with a water rinse after each immersion and dried, when it is ready for application of a casein bichromate sensitizer. Seven other examples repeat the procedure with the variations of using (2) carboxymethyl-hydroxy ethyl cellulose and titanium lactate; (3) titanium lactate as the only change; (4) gluconic acid for the second immersion; (5) steel base plates instead of aluminium; (6) a sulphite modified ureaformaldehyde resin; (7) amine modified ureaformaldehyde resin; and (8) alkylated methylol melamine resin. Numerous other base members including glass, plastic, wood, paper as well as other metals, and other resins, dispersions and salts for the immersions or corresponding coating procedures are listed, and references are provided for further sensitizers.

17. 发明专利

GB907718A Hydrophilic base plates for diazo presensitized lithographic printing plates 未知
公开(公告)号：GB907718A
公开(公告)日：1962-10-10
申请号：GB3278458
申请日：1958-10-14
申请人： LITHOPLATE INC
IPC分类号： B41N3/03
摘要： 907,718. Photolithographic printing-plate. LITHOPLATE Inc. Oct. 14, 1958 [Nov. 1, 1957], No. 32784/58. Class 98 (2). A support is treated with a polyfunctional amino-urea-aldehyde resin or a sulphonated urea-aldehyde resin in aqueous solution to result in an hydrophilic layer, and then with a light-sensitive diazo compound which becomes hydrophobic and insoluble on exposure. The support may be of paper, resin impregnated paper or, particularly, of metal and the resin therefor ureaformaldehyde reaction with an amine, polyamine or polyimine, or else reacted with an alkali metal sulphite. Descriptions of producing the resins are provided and amplified by references to foreign Specifications, and the diazo sensitizers are mainly disclosed by similar references. Eight examples describe production of the resin layers and treatment thereof with the condensation product of paraformaldehyde and p-diazo-diphenylamine sulphate as sensitizer.

18. 发明授权

US3655625A Polyurethane-cinnamate photopolymer 失效
标题翻译：聚氨酯 - 光亮剂
公开(公告)号：US3655625A
公开(公告)日：1972-04-11
申请号：US3655625D
申请日：1969-07-28
申请人： LITHOPLATE INC
发明人： THOMAS DANIEL C
IPC分类号： C08G18/83 , G03F7/038
CPC分类号： G03F7/038 , C08G18/831 , Y10S430/107
摘要： A BLOCKED POLYURETHANE RESIN, ISOCYANATE TERMINATED, WITH ISOCYANATE GROUPS TREATED WITH PHENOL, AND THEN HEATED TO DRIVE OFF THE PHENOL AND REACTED WITH A POLYOL, IS REACTED WITH A CINNAMOLYLATING AGENT TO MAKE A POLYURETHANE CINNAMATE WHICH IS A PHOTOPOLMER.

19. 发明授权

US3386850A Plate base adapted to receiver light-sensitive coating 失效
标题翻译：板底适合接收器感光涂层
公开(公告)号：US3386850A
公开(公告)日：1968-06-04
申请号：US57485166
申请日：1966-07-13
申请人： LITHOPLATE INC
发明人： ADAMS DOLOR N , THOMAS DANIEL C
IPC分类号： B41N3/03
CPC分类号： B41N3/03 , Y10S428/913 , Y10T428/31688

20. 发明授权

US3232783A Resinous coatings adapted to receive a light-sensitive layer in the production of lithographic printing plates 失效
标题翻译：适用于在平版印刷版生产中接收光敏层的树脂涂层
公开(公告)号：US3232783A
公开(公告)日：1966-02-01
申请号：US24631462
申请日：1962-12-21
申请人： LITHOPLATE INC
发明人： DEAL ELMER F , RICHLIN ISADORE M , WILSON BRUCE W
IPC分类号： B41N3/03
CPC分类号： G03F7/038 , B41C1/1016 , B41C2210/04 , B41C2210/14 , B41C2210/20 , B41C2210/26 , B41C2210/262 , B41C2210/266 , B41N3/036 , Y10T428/31627 , Y10T428/31688 , Y10T428/31957 , Y10T428/31964

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