Patent · US Expired

Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups, and a recording material produced therefrom

US4987055A · kind A · utility

4Cited by

20References

29Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Klaus Rode · Treuchtlingen, DE
Dieter Mohr · Appenheim, DE
Werner Frass · Wiesbaden, DE
Joachim Gersdorf · Wiesbaden, DE

Key dates

Filing date	Dec 21, 1988
Grant date	Jan 22, 1991
Priority date	—
Expiry date	Dec 21, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/116
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A photopolymerizable mixture is described comprising (a) a polymeric binder, (b) an acrylate or alkacrylate of a polyhydric alcohol, said compound comprising at least one group which is photooxidizable on exposure to actinic radiation in the presence of a photoreduciable dye, (c) a photoinitiator comprising a photoreducible benzoxanthene or benzothioxanthene dye, and (d) a second photoinitiator comprising a trihalomethyl compound capable of being cleaved by irradiation. The mixture is suitable for the production of printing plates and photoresists and displays increased photosensitivity.

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