Patent · US Expired

Film-forming light-sensitive polymeric material carrying azidosulfonyl groups

US4065524A · kind A · utility

6Cited by
4References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 17, 1975
Grant dateDec 27, 1977
Priority date
Expiry dateMar 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.