Company Filing History:
Years Active: 1990
Title: Ester Hegar-Zimmerman: Innovator in Azo Dye Technology
Introduction
Ester Hegar-Zimmerman is a notable inventor based in the United States, recognized for her contributions to the field of dye chemistry. She has developed innovative solutions that enhance the functionality and application of dyes in various industries.
Latest Patents
Ester holds a patent for an azo dye of the pyridone series, which contains a fluoro-s-triazinyl component. This invention includes fibre-reactive dyes characterized by a specific formula, wherein X represents an alkyl or alkoxy group of 1 to 4 carbon atoms, a carboxy group, or a halogen atom. Additionally, R1 and R2 can independently be a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, while D denotes the radical of an organic dye containing sulpho groups. The benzene ring A may also include further substituents apart from X and SO3H. This patent showcases her expertise in creating advanced dye formulations.
Career Highlights
Ester has made significant strides in her career, particularly through her work at Ciba-Geigy Corporation. Her innovative approach to dye chemistry has positioned her as a key figure in the development of new dye technologies.
Collaborations
Throughout her career, Ester has collaborated with esteemed colleagues, including Herbert Seiler and Gert Hegar. These partnerships have contributed to her success and the advancement of her research in dye chemistry.
Conclusion
Ester Hegar-Zimmerman's contributions to the field of dye technology exemplify her innovative spirit and dedication to advancing chemical applications. Her work continues to influence the industry and inspire future innovations.