Patent · US Expired

Support for lithographic printing plate

US4492740A · kind A · utility

6Cited by
2References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 10, 1983
Grant dateJan 8, 1985
Priority date
Expiry dateJun 10, 2003

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12611
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

Disclosed is a support for lithographic printing plate having an electrodeposited chromium layer on an iron material, characterized in that the surface of said electrodeposited layer has a shape in which crystalline products with angles protrude thereon, the elemental composition in the surface side portion of said electrodeposited layer consists substantially of chromium and oxygen and the ratios of atomic concentrations of chromium and oxygen at said portion are substantially even at the same depth from every point on said surface.

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