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1. 发明专利

DE1902096A1 未知
公开(公告)号：DE1902096A1
公开(公告)日：1970-04-23
申请号：DE1902096
申请日：1969-01-16
申请人： LITHOPLATE INC
发明人： CHARLES THOMAS DANIEL
IPC分类号： G03F7/021 , G03F7/08

2. 发明专利

DE1166217B 未知
公开(公告)号：DE1166217B
公开(公告)日：1964-03-26
申请号：DEL0033287
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

3. 发明专利

GB918735A Lithographic plate 未知
公开(公告)号：GB918735A
公开(公告)日：1963-02-20
申请号：GB1675559
申请日：1959-05-15
申请人： LITHOPLATE INC
IPC分类号： B41N3/03
摘要： A plate for use in lithographic printing is produced by depositing on a base a coat of a polyfunctional amino-urea-aldehyde resin and/or a sulphonated urea-aldehyde resin and interpolymerizing therewith a second coat of a water soluble monomeric acrylic compound. The base may be of aluminium, zinc, tin, magnesium, lead, chromium, copper or iron and may be oxidized, e.g. by heating, treatment with chromic acid, or anodizing, before coating. Foils, films and paper which may be impregnated with a phenol-formaldehyde resin may also be coated. Suitable acrylic compounds are acrylic acid, methacrylic acid, the ammonium, sodium and potassium salts thereof, acrylamide and methacrylamide.ALSO:A plate for use in lithographic printing is produced by depositing on a base a coat of a polyfunctional amino-urea-aldehyde resin and/or a sulphonated urea-aldehyde resin and interpolymerizing therewith a second coat of a water soluble monomeric acrylic compound. Suitable acrylic compounds are acrylic acid, methacrylic acid, the ammonium, sodium and potassium salts thereof, acrylamide and methacrylamide. The amino-urea-aldehyde resin may be made from 2 or 3 mols. of formaldehyde per mol. of urea and from 2 to 80, preferably 6 to 15% of a polyfunctional amine such as ethylene diamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine; the condensation products of polyamines leading to amine polymers such as tetraethylenepentamine and epichlorohydrin or tetraethylenepentamine and formaldehyde; the guanidines, the biguanides, the guanylureas and the salts thereof; and the hydroxylamines such as monoethanolamine, diethanolamine, and the like.

4. 发明专利

GB918599A Lithographic plate 未知
公开(公告)号：GB918599A
公开(公告)日：1963-02-13
申请号：GB1675659
申请日：1959-05-15
申请人： LITHOPLATE INC
IPC分类号： B41N3/03
摘要： A plate for use in lithographic printing is produced by coating a base with an alkylated methylol melamine resin and/or a polyalkyleneamine-melamine-aldehyde resin, and inter-polymerizing therewith a second coat of a water-soluble acrylic compound. The base may be of aluminium, zinc, tin, magnesium, lead, chromium, copper or iron, and may be oxidized, e.g. by heating, treatment with chromic acid, or anodizing, before coating. Foils, films and paper which may be impregnated with a phenolformaldehyde resin may also be coated. Suitable acrylic compounds are acrylic acid, methacrylic acid, the ammonium, sodium and potassium salts thereof, acrylamide and methacrylamide.ALSO:A plate for use in lithographic printing is produced by coating a base with an alkylated methylol melamine resin and/or a polyalkyleneamine-melamine-aldehyde resin, and inter-polymerizing therewith a second coat of a water-soluble acrylic compound. The base may be of aluminium, zinc, tin, magnesium, lead, chromium, copper or iron and may be oxidized, e.g. by heating, treatment with chromic acid, or anodizing, before coating. Foils, films and paper which may be impregnated with a phenolformaldehyde resin may also be coated. Suitable arylic compounds are acrylic acid, methacrylic acid, the ammonium, sodium and potassium salts thereof, acrylamide and methacrylamide. Suitable resins are formed by reacting melamine, formaldehyde and methyl or ethyl alcohol, or melamine, formaldehyde and a polyalkylene polyamine such as diethylene triamine, triethylene tetramine, tetraethylene pentamine, the corresponding polypropylene, 4,41-iminobisbutylamine, 3,31-iminobispropylamine, 3,31,311-nitrilotrispropylamine, a polyethylene-imine or the reaction product of an alkylene diamine or polyalkylene polyamine with an alkylene dichloride, alkylene dichlorhydrin or epichlorhydrin.

5. 发明专利

FR2038671A5 Lacquer emulsion for lithographic printing - plates 未知
公开(公告)号：FR2038671A5
公开(公告)日：1971-01-08
申请号：FR6908317
申请日：1969-03-21
申请人： LITHOPLATE INC
IPC分类号： B41N3/08 , C09D5/00 , G03F7/00
摘要： Emulsion is made by mixing an aqs. phase contg. a desensitiser to remove the non-exposed parts of the plate and a non-aqs. phase comprising a soln. of a water-insol oleophilic resin in a solvent which dissolves at is not >2.4g/100 ml water at room temp. and homogenising the mixture so that the resin particles are in the range 1-500 micron. Suitable polymers for the emulsion are vinyl chloride/vinyl acetate, vinylidene chloride/acrylonitrile, polyvinyl formal, acetal and butyral, polycarbonate, polystyrene, acrylics, polyesters, silicones, polyurethanes, cellulose acetate and phenoxy resins.

6. 发明专利

DE1200847B 未知
公开(公告)号：DE1200847B
公开(公告)日：1965-09-16
申请号：DEL0034381
申请日：1959-10-02
申请人： LITHOPLATE INC
发明人： DEAL ELMER F , RICHLIN ISADORE M , WILSON BRUCE W
IPC分类号： B41N3/03

7. 发明专利

DE1173917B 未知
公开(公告)号：DE1173917B
公开(公告)日：1964-07-16
申请号：DEL0031620
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
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.

8. 发明专利

GB907289A Hydrophilic base plate for diazo presensitized lithographic printing plates 未知
公开(公告)号：GB907289A
公开(公告)日：1962-10-03
申请号：GB3278258
申请日：1958-10-14
申请人： LITHOPLATE INC
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.

9. 发明专利

FR2020081A1 未知
公开(公告)号：FR2020081A1
公开(公告)日：1970-07-10
申请号：FR6900651
申请日：1969-01-16
申请人： LITHOPLATE INC
IPC分类号： G03F7/021 , G03F1/00

10. 发明专利

GB1123589A Presensitised lithographic plate 未知
公开(公告)号：GB1123589A
公开(公告)日：1968-08-14
申请号：GB4209566
申请日：1966-09-21
申请人： LITHOPLATE INC
发明人： ADAMS DOLOR NAPOLEON , THOMAS DANIEL CHARLES
摘要： A metal, preferably aluminium, sheet is coated with a solution containing an alicyclic polyphosphoric acid (preferably phytic acid) to render the sheet hydrophilic. The sheet is preferably cleaned with trisodium phosphate and desmutted with nitric acid before the phytic acid solution is applied. Alternatively, the cleaned sheet may be pickled in chromic/sulphuric acid solution and coated with a resin layer before the phytic acid solution is applied. A light sensitive layer may then be coated on the phytic acid layer (see group G2) or the acid layer be treated with an aqueous solution of a zirconium, hafnium, titanium or thorium salt to insolubilise the phytic acid.

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