Company Filing History:
Years Active: 1977-1982
Title: Siegfried Schleger: Innovator in Color Photographic Technology
Introduction
Siegfried Schleger is a notable inventor based in Munich, Germany. He has made significant contributions to the field of color photographic technology. With a total of 3 patents to his name, Schleger's work has had a lasting impact on the industry.
Latest Patents
One of Schleger's latest patents involves a color photographic recording material that contains non-diffusing electron-5- or 6-membered α-lactones of phenolic compounds. This innovative material features a phenyl ring that carries a hydroxyl or amino group in its 2- or 4-position to the lactonized phenolic hydroxyl group. The lactone ring is designed to carry an electron-accepting substituent, allowing it to be cleaved at pH values of 10 to 13. This process results in the formation of an electron donor compound (ED-compound) with a redox potential of less than +0.255 V, making it useful as an ED precursor compound for non-diffusing reducible color providing compounds. Another significant patent is a process for the production of oxazolinone-2-compounds. This process involves the condensation of an α-halogen carbonyl compound with carbamic acid esters in the presence of a basic condensing agent and an aprotic solvent. It enables the production of oxazolinone-2-compounds in high purity and yield in a single step using readily available starting compounds.
Career Highlights
Siegfried Schleger is currently associated with Agfa-Gevaert AG, a company known for its innovations in imaging technology. His work at Agfa-Gevaert AG has allowed him to further develop his expertise in photographic materials and processes.
Collaborations
Throughout his career, Schleger has collaborated with notable colleagues such as Wolfgang Lassig and Ernst Meier. These collaborations have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Siegfried Schleger is a distinguished inventor whose work in color photographic technology has led to significant advancements in the field. His innovative patents and collaborations highlight his contributions to the industry.
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