Patent · US Expired

Support material for offset-printing plates in the form of a sheet, a foil or a web process for its production and offset-printing plate comprising said material

US5302460A · kind A · utility

5Cited by

25References

31Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Engelbert Pliefke · Wiesbaden, DE
Raimund J. Faust · Wiesbaden, DE

Key dates

Filing date	Jul 17, 1991
Grant date	Apr 12, 1994
Priority date	—
Expiry date	Jul 17, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31696
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A support material for photosensitive substances, useful in the production of offset-printing plates, is disclosed. The support material comprises mechanically, chemically or electrochemically roughened aluminum or an aluminum alloy in the form of a sheet, a foil or a web, and which is coated on at least one side with a hydrophilic polymer which comprises (a) at least 2 mol% of units having acidic side groups and (b) at least 2 mol% of units having basic side groups which are capable of being protonated.

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