Support for liquid photosensitive resin
US3948666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Apr 4, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31591
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A support for use in preparing a printing plate using a liquid photosensitive resin. The support includes a flexible self-supporting base plate and an adhesive layer thereon for applying a layer of a photosensitive resin. The adhesive layer is a layer of a cross-linked polyester-polyurethane resin formed by reacting (A) a linear polyester-polyurethane resin with (B) a polyfunctional isocyanate on the surface of the base plate. This invention relates to a flexible support for use in preparing a printing plate consisting of the support and a layer of a liquid photosensitive resin applied in situ to the support and solidified upon exposure, especially to a support including an adhesive layer for firmly bonding the solidified photosensitive resin layer to the support. A method has previously been known which comprises applying a layer of a solid or liquid photosensitive resin to the surface of an iron plate, aluminum plate or resin sheet through an adhesive layer and an antihalation layer, exposing the photosensitive resin layer to actinic light such as ultraviolet rays through an image-bearing film to solidify the image areas in relief, and washing out the uncured portion with a devel…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.