Location History:
- Frankfurt-am-Main, DE (1980)
- Kronberg, DE (1980)
Company Filing History:
Years Active: 1980
Title: Paul Karacsonyi: Innovator in Azo Dyestuff Processes
Introduction
Paul Karacsonyi is a distinguished inventor based in Frankfurt am Main, Germany, recognized for his innovative contributions to the field of azo dyestuffs. With two patents to his name, Karacsonyi has developed processes that are crucial in the production and application of dyes on various fiber materials.
Latest Patents
Karacsonyi's latest patents include a comprehensive process for the preparation of azo dyestuffs on fiber materials. This process involves diazotizing a mono- to tetramine derived from metal-containing or metal-free phthalocyanine. The amino groups are bound to substituted phenyl or naphthyl groups, linked via a bridge member to the phthalocyanine, which may contain multiple optionally substituted sulfon amide groups and sulfo groups. This intricate method uses azoic coupling components typically used for developing dyestuffs.
Another significant patent involves a process for printing with developing dyes. This innovative technique utilizes ether-o-Aminophenol ethers derived from lower alkylene glycols. In this approach, the printing paste consists of an alkaline solution of the coupling component, a dispersion of the amine, sodium nitrite, and a thickening composition. Developing the dye occurs through acidic means, often combined with heat treatment, showcasing the advanced method for dye application on cellulose.
Career Highlights
Karacsonyi is associated with Hoechst Aktiengesellschaft, a leading company in the chemicals and pharmaceuticals sector. His work has significantly impacted the industry, paving the way for new methodologies in dye production and application.
Collaborations
Throughout his career, Karacsonyi has collaborated with noted colleagues such as Erich Feess and Horst Curtius. These partnerships in the laboratory environment have fostered innovative ideas and have been instrumental in refining the processes related to azo dyestuffs.
Conclusion
Paul Karacsonyi's expertise and innovative spirit demonstrate the crucial role inventors play in the advancement of industrial processes. His patents in azo dyestuff preparation and printing processes not only highlight his contributions but also serve as a foundation for future innovations in the textile dyeing industry.