Film-forming light-sensitive polymeric material carrying azidosulfonyl groups
US4065524A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1975 |
| Grant date | Dec 27, 1977 |
| Priority date | — |
| Expiry date | Mar 17, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S522/904
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Photo-sensitive film-forming soluble polymeric materials containing one or two polymers which can be insolubilized photochemically are disclosed. These polymeric materials contain in the same or different polymers (A) components which are reactive with moieties obtained by the photochemical decomposition of azidosulphonyl groups, e.g., a hydroxyl radical, pyridine, a phenyl radical, or a lactam radical; and (B) azidosulphonyl groups. The photo-sensitive material is insolubilized by exposure to actinic light. The material is useful in the production of photographic resists, printing plates for lithography, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.