Patent · US Expired

Photopolymerizable binders containing diaminobenzophenones

US4147604A · kind A · utility

11Cited by

6References

3Claims

0Family size

Assignee

BASF SE

Inventors

Werner Kuesters · Ludwigshafen, DE
Guenter Heil
Martin Fischer · Ludwigshafen, DE
Manfred Eisert · Ludwigshafen, DE
Hellmut Kast

Key dates

Filing date	Jul 3, 1978
Grant date	Apr 3, 1979
Priority date	—
Expiry date	Jul 3, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/124
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Photopolymerizable binders for printing inks, coatings and printing plates, based on olefinically unsaturated compounds, with or without a polymeric binder component, and containing a diaminobenzophenone compound as the photosensitizer, are improved in respect of their toxicity and shelf life if the diaminobenzophenone compound has the formula R.sup.1 R.sup.2 N--C.sub.6 H.sub.4 --CO--C.sub.6 H.sub.4 --NR.sup.3 R.sup.4, where R.sup.1 and R.sup.3 are H(OR.sup.5).sub.x radicals, R.sup.5 being alkylene of 2 or 3 carbon atoms and x being 1, 2 or 3, and R.sup.2 and R.sup.4 are each alkyl of 1 to 4 carbon atoms or are radicals of the type of R.sup.1 and R.sup.3.

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