Heat sensitive imaging element and method for making a printing plate therewith
Patent 6391516 Issued on May 21, 2002. Estimated Expiration Date: 
November 8, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 8, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3476937 3679410 Thermorecording Method of treating substrates Lithographic base and a method for making a lithographic printing plate therewith Patent #: 5462833 InventorsAssigneeApplicationNo. 751764 filed on 11/08/1996US Classes:430/270.1, Radiation sensitive composition or product or process of making430/302, Lithographic430/309, Post imaging process430/330, Including heating430/348, THERMOGRAPHIC PROCESS430/927, Radiation-activated cross-linking agent containing430/955, PRECURSOR COMPOUND430/964THERMAL IMAGING COMPOSITIONExaminersPrimary: Schilling, Richard L.Attorney, Agent or FirmForeign Patent References
International ClassesG03F 007/30G03F 007/40 G03F 007/038 Foreign Application Priority Data1995-11-09 EPAbstractThe present invention discloses an imaging element comprising on a hydrophilic surface of a lithographic base an image forming layer comprising hydrophobic thermoplastic polymer particles dispersed in a hydrophilic binder and (ii) a compound capable of converting light to heat, said compound being comprised in said image forming layer or a layer adjacent thereto, characterised in that said image forming layer further comprises a cross-linking agent capable of cross-linking said hydrophilic binder upon heating in a ratio between 1:100 and 200:1 by weight versus the hydrophilic binder.The present invention further provides a method for making a printing plate therewith. According to this method, the above imaging element is preferably exposed by means of a laser and is subsequently developed with plain water or an aqueous liquid.Field of SearchImagewise heating, element or image receiving layers therefor or imagewise vapor and gas transfer process, element or image receiving layer thereforIncluding heating THERMOGRAPHIC PROCESS THERMAL IMAGING COMPOSITION Radiation-activated cross-linking agent containing Lithographic PRECURSOR COMPOUND Radiation sensitive composition or product or process of making Post imaging process Fluid treating the coating (e.g., vapor treating, etc.) |
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