Patents
US 12436459 B2: Lithographic printing plate precursor and method of use
- Granted
- 2025-10-07
- Filed
- 2022-03-03 application 17685592
- Type
- Utility · 20 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 radiation-sensitive composition in an infrared radiation-sensitive image-recording layer. This IR radiation-sensitive composition includes: (1) a free radical initiator composition that comprises an electron-donating agent; (2) a free radically polymerizable composition; and (3) a color-changing compound that is represented by the Structure (I) having a conjugated carbon chain between the aromatic terminal groups. The compound also has a —SO2—R3 group wherein R3 represents alkyl, aryl or heteroaryl groups. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage. The precursors can be developed off-press or on-press.
Source: PVGPATDIS, file of 2026-04-10 (ipg251007.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 |
| B41N | Printing plates or foils ; materials for surfaces used in printing machines for printing, inking, damping, or the like; preparing such surfaces for use and conserving them | B41N3/034 | 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 |
|---|---|---|---|---|---|
| 2022-04-26 | Assignment Assignment of assignor's interest | HANSMANN, STEFANIE signed 2022-03-02 SIMPSON, CHRISTOPHER D. signed 2022-03-02 HUANG, JIANBING signed 2022-03-05 WERNER, SAIJA signed 2022-03-16 | EASTMAN KODAK COMPANY ROCHESTER, NY | 59794/590 | ECORSEXC, file of 2026-09-25 |
| 2022-03-22 | Security interest Security interest Security interest | EASTMAN KODAK COMPANY signed 2022-03-15 EASTMAN KODAK INTERNATIONAL CAPITAL COMPANY, INC. signed 2022-03-15 FAR EAST DEVELOPMENT LTD. signed 2022-03-15 KODAK (NEAR EAST), INC. signed 2022-03-15 KODAK AMERIACAS, LTD. signed 2022-03-15 KODAK PHILIPPINES, LTD. signed 2022-03-15 | BANK OF AMERICA, N.A. AS AGENT BOSTON, MA | 59336/405 | 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.