Company Filing History:
Years Active: 1981-1983
Title: Monika Bethke: Innovator in Photographic Silver Halide Compositions
Introduction
Monika Bethke is a notable inventor based in Dessau, Germany. She has made significant contributions to the field of photographic technology, particularly in the development of light-sensitive, color photographic silver halide compositions. With a total of 2 patents, her work has advanced the quality and efficiency of photographic materials.
Latest Patents
Bethke's latest patents focus on a light-sensitive, color photographic silver halide multilayer material. This innovative material incorporates DIR-couplers that are substituted in the coupling position by mercapto-azole, mercaptobenz-azole, or mercapto-azine moieties, which carry hydrophilic substituents. These DIR-couplers can be utilized alongside other couplers and additives or as the sole color-forming element. They are recognized for their high color yields and inter- and intra-image effects. The couplers can be added in both hydrophobic (dispersed form) and hydrophilic (alkaline solutions) states. Furthermore, they can be employed in single layers or as associated layers, with a maximum of three layers of a color-forming unit, arranged in any desired order within the overall combination of layers.
Career Highlights
Monika Bethke has been associated with Veb Filmfabrik Wolfen, where she has contributed her expertise in photographic technology. Her work has been instrumental in enhancing the performance of photographic materials, making them more effective and versatile.
Collaborations
Throughout her career, Bethke has collaborated with notable colleagues, including Rainer Redmann and Christa Melz. These partnerships have fostered innovation and have played a crucial role in the development of her patented technologies.
Conclusion
Monika Bethke's contributions to the field of photographic silver halide compositions demonstrate her innovative spirit and dedication to advancing photographic technology. Her patents reflect a commitment to improving the quality and functionality of photographic materials, solidifying her position as a key inventor in this domain.