Substrate improvements for thermally imageable composition and methods of preparation
US6692890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Dec 3, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N3/038
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention includes a radiation-imageable element for lithographic printing having a hydrophilic anodized aluminum base with a surface having pores and a image-forming layer having polymer particles coated on the aluminum base. The ratio of the average pore diameter to the average particle diameter is from 0.4:1 to 10:1. The present invention further includes a method of producing the imaged element. The method includes the steps of imagewise exposing the radiation-imageable element to radiation to produce exposed and unexposed regions and contacting the imagewise exposed radiation-imageable element and a developer to remove the exposed or the unexposed regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.