Patents
US 8632943 B2: Near-infrared sensitive, positive-working, image forming composition and photographic element containing a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane
- Granted
- 2014-01-21
- Filed
- 2012-01-30 application 13361244
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An infrared sensitive, positive-working, image forming composition and element are disclosed. The image forming composition comprises a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane, an infrared absorbing dye having a maximum absorption peak in the range of from about 700 nm to about 1100 nm, and a novolac polymer. The composition is applied and dried on a planar, hydrophilic substrate to form an image forming element, in particular, a planographic printing plate. Upon imagewise exposure to a near-infrared radiation source, the infrared dye absorbs light in the exposed areas and converts it to heat, which causes a disruption in the matrix of the image forming composition. Upon development with an aqueous alkaline developer, the exposed areas are removed while the nonexposed areas remain, thus forming a positive image.
Source: PVGPATDIS, file of 2026-04-10 (ipg140121.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Southern Lithoplate, Inc. 3 patents | US company or organization | Youngsville, NC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Stephan J. W. Platzer | Longmeadow, MA | 6 | PVGPATDIS, file of 2026-04-10 | |
| James A. Bonham | Lake Elmo, MN | 2 | PVGPATDIS, file of 2026-04-10 | |
| Kimberly R. Kukla | Medina, TN | 1 | PVGPATDIS, file of 2026-04-10 | |
| Richard C. Wax | Kentwood, MI | 1 | PVGPATDIS, file of 2026-04-10 | |
| Teresa Baker | Wake Forest, NC | 1 | PVGPATDIS, file of 2026-04-10 | |
| Ella Ross Ryan | Durham, NC | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| 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 |
|---|---|---|---|---|---|
| 2012-01-30 | Assignment Assignment of assignor's interest | BONHAM, JAMES A. signed 2012-01-20 BAKER, TERESA signed 2012-01-23 PLATZER, STEPHAN J.W. signed 2012-01-23 RYAN, ELLA ROSS signed 2012-01-23 KUKLA, KIMBERLY R. signed 2012-01-25 WAX, RICHARD C. signed 2012-01-26 | SOUTHERN LITHOPLATE, INC. YOUNGSVILLE, NC | 27617/825 | 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.