Location History:
- North Holland, NL (1992)
- Weesp, NL (1991 - 1993)
Company Filing History:
Years Active: 1991-1993
Title: The Innovative Contributions of Robert B. Koolstra
Introduction
Robert B. Koolstra, an accomplished inventor located in Weesp, Netherlands, has made significant strides in the field of photochemistry, particularly through his innovative patents. With a total of three patents to his name, Koolstra is at the forefront of developing methods that enhance the conversion of organic compounds.
Latest Patents
Koolstra's latest innovations focus on the photochemical isomerization and conversion of organic compounds, specifically tachysterol and vitamin D derivatives. His first patent describes a method for the photochemical isomerization of organic compounds under radiation. This process involves exposing a solution of the organic compound, featuring a substituted thiophene derivative that acts as a photosensitizer, to light within the wavelength range of approximately 300-1,000 nm. The method highlights the isolation of the resulting product and introduces a new photosensitizer for isomerization reactions.
The second patent elaborates on the photochemical conversion of tachysterol compounds into previtamin D compounds and trans-vitamin D compounds into cis-vitamin D compounds. This innovative method uses a polymeric photosensitizer that facilitates the photochemical conversion process. The polymer chain used in this photosensitizer has been carefully selected to ensure it remains soluble in the solvent during radiation exposure but can be separated upon cooling or further treated, providing a novel approach to the extraction of desirable compounds.
Career Highlights
Robert B. Koolstra currently works at Duphar International Research BV, where he continues to push the boundaries of research and innovation in photochemistry. His dedication to advancing organic chemistry has positioned him as a key player in his field and allows him to contribute significantly through his patents.
Collaborations
Koolstra has collaborated with notable colleagues in his research endeavors, including Eric Goethals and Sebastianus J. Halkes. These partnerships enable a rich exchange of ideas and an expanded network that fosters innovation and discovery in the chemistry domain.
Conclusion
Robert B. Koolstra's contributions to the field of photochemistry are exemplified through his impactful patents and collaborative efforts. His work not only advances scientific understanding but also has the potential to lead to practical applications in various industries, showcasing the importance of innovation in modern research. As he continues his work at Duphar International Research BV, the future holds great promise for further advancements in organic compound conversion methods.