Patent · US Expired

Photosensitive compositions

US4477553A · kind A · utility

34Cited by
5References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 29, 1983
Grant dateOct 16, 1984
Priority date
Expiry dateDec 29, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08K5/28
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

There is disclosed a photosensitive composition comprising an o-quinonediazide compound and, as a binder resin, a resin containing in the molecule the unit represented by the following formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the same meanings as defined in the specification. The photosensitive composition according to the present invention has excellent resistance to chemicals and long press-life, and is excellent in alkali-solubility and difficult to form scumming.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.