Patent · US Expired

Aqueous alkali developable negative working lithographic printing plates

US4171974A · kind A · utility

17Cited by
11References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 15, 1978
Grant dateOct 23, 1979
Priority date
Expiry dateFeb 15, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03F7/0212
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

NEGATIVE WORKING LITHOGRAPHIC PRINTING PLATES WHOSE COATING COMPRISES THE ADMIXTURE OF ACRYLATED ESTERS OF EPOXY RESINS WITH NEGATIVE WORKING LITHOGRAPHIC SENSITIZERS ARE FORMED, WHEREBY THE NON-IMAGE AREAS ARE REMOVABLE BY AQUEOUS ALKALI DEVELOPERS.

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