Positive-working imageable elements and method of use
US8936902B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Nov 20, 2008 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Jun 15, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41C2210/266
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An infrared radiation-sensitive positive-working imageable element has a substrate and single imageable layer that includes a first polymeric binder having urethane or urea moieties in its backbone. The first polymeric binder is also insoluble in water and soluble in a weakly alkaline solution. This imageable element can be imaged and processed using weakly alkaline processing solutions that are free of silicates and metasilicates, which processing solutions may also be used to “gum” the imaged and developed printing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.