Patent · US Expired

Process of producing an elastomeric printing relief

US4369246A · kind A · utility

86Cited by

10References

13Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Gwendyline Y. Y. Chen · Wilmington, US
James Brennan · East Riverton, US

Key dates

Filing date	Jan 28, 1981
Grant date	Jan 18, 1983
Priority date	—
Expiry date	Jan 28, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/106
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Photosensitive elements comprising a layer of a solvent-soluble, thermoplastic, elastomeric, block copolymer, a nongaseous ethylenically unsaturated compound, and an addition polymerization initiator activatable by actinic light interposed between a support and cover sheet, a flexible polymeric film, e.g., polyamide, being interposed between the cover sheet and the surface of the layer. The elements are useful in preparing printing plates, particularly flexographic printing plates, and other relief images.

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