Patents
US 12222645 B2: Lithographic printing plate precursor and method of use
- Granted
- 2025-02-11
- Filed
- 2022-06-21 application 17844953
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
IR-sensitive lithographic printing plate precursors provide a stable print-out image using a unique IR-sensitive image-recording layer. The IR radiation-sensitive layer includes: (1) a free radical initiator composition with an electron-donating agent and one or more iodonium cations; (2) a free radically polymerizable composition; and (3) a color-changing compound of Structure (I) having an indene ring in the conjugated chain between the aromatic terminal groups. The IR radiation-sensitive composition and layer also contains one or more borate ions such that the molar ratio of one or more borate ions to the one or more iodonium ions is at least 0.5:1. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage. The precursors can be developed on-press.
Source: PVGPATDIS, file of 2026-04-10 (ipg250211.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| EASTMAN KODAK COMPANY 2,417 patents | US company or organization | Rochester, NY | EASTMAN KODAK COMPANY Federal lobbying client EXACT high confidence: identical full name and state EASTMAN KODAK CO SEC filer FUZZY low confidence: same name (legal endings aside), one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Christopher D. Simpson | Osterode, DE | 19 | PVGPATDIS, file of 2026-04-10 | |
| Stefanie Hansmann | Osterode, DE | 4 | PVGPATDIS, file of 2026-04-10 | |
| Saija Werner | Hattorf am Harz, DE | 7 | PVGPATDIS, file of 2026-04-10 | |
| Jianbing Huang | Trumbull, CT | 23 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G03F | Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices; materials therefor; originals therefor; apparatus specially adapted therefor; | G03F7/0045 | PVGPATDIS, file of 2026-04-10 |
| B41C | Processes for the manufacture or reproduction of printing surfaces | B41C1/1008 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-08-16 | Security interest Security interest Security interest | EASTMAN KODAK COMPANY signed 2022-08-09 EASTMAN KODAK INTERNATIONAL CAPITAL COMPANY, INC. signed 2022-08-09 FAR EAST DEVELOPMENT LTD. signed 2022-08-09 KODAK (NEAR EAST) INC. signed 2022-08-09 KODAK AMERICAS LTD. signed 2022-08-09 KODAK PHILIPPINES LTD. signed 2022-08-09 | BANK OF AMERICA, N.A., AS AGENT BOSTON, MA | 60816/215 | ECORSEXC, file of 2026-09-25 |
| 2022-06-21 | Assignment Assignment of assignor's interest | HANSMANN, STEFANIE signed 2022-06-01 SIMPSON, CHRISTOPHER D. signed 2022-06-01 WERNER, SAIJA signed 2022-06-01 HUANG, JIANBING signed 2022-06-05 | EASTMAN KODAK COMPANY ROCHESTER, NY | 60545/939 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.