Patent · US Expired

Process of forming imaged photohardened material

US4948704A · kind A · utility

17Cited by

9References

7Claims

0Family size

Assignee

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

Inventors

Richard Bauer · Estacada, US
Ursula Annerose Kraska · Pfungstadt, DE
Manfred Sondergeld · St. Georgen, DE

Key dates

Filing date	Sep 29, 1989
Grant date	Aug 14, 1990
Priority date	—
Expiry date	Sep 29, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/111
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A positively working, tonable, photohardenable mixture, as well as image-forming material prepared therefrom are described, which as essential components, contains a binder or mixture of binders, a photohardenable compound, a photoinitiator or an initiator system and a multivalent metal compound to improve the toning properties of the material.

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