Invention Grant
- Patent Title: Polymeric dyes, overcoat compositions and thermal lithographic printing plates
- Patent Title (中): 聚合染料，外涂层组合物和热平版印刷版
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Application No.: US12669805Application Date: 2008-07-24
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Publication No.: US08491993B2Publication Date: 2013-07-23
- Inventor: My T. Nguyen , Marc-Andre Locas
- Applicant: My T. Nguyen , Marc-Andre Locas
- Applicant Address: CA
- Assignee: American Dye Source, Inc.
- Current Assignee: American Dye Source, Inc.
- Current Assignee Address: CA
- Agency: Wilmer Cutler Pickering Hale & Dorr LLP.
- International Application: PCT/CA2008/001371 WO 20080724
- International Announcement: WO2009/015467 WO 20090205
- Main IPC: B23B5/16
- IPC: B23B5/16
Abstract:
A thermal lithographic printing plate overcoat composition comprising (a) a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm; and (b) micro-particles or nano-particles is provided. A negative-working thermal lithographic printing plate comprising (a) a hydrophilic substrate; (b) a near infrared imaging layer disposed on the hydrophilic substrate; and (c) an overcoat layer disposed on the imaging layer, said overcoat layer comprising a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm; and micro-particles or nano-particles is also provided. Finally, a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm is provided.
Public/Granted literature
- US20100215944A1 POLYMERIC DYES, OVERCOAT COMPOSITIONS AND THERMAL LITHOGRAPHIC PRINTING PLATES Public/Granted day:2010-08-26
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