Company Filing History:
2 out of 3,269 
1 out of 23 Years Active: 2011-2015
Title: Innovations by Leendert Johannes Van Dop: A Pioneer in Plasticiser Esters
Introduction
Leendert Johannes Van Dop, an accomplished inventor from Rozenburg, Netherlands, has made significant contributions to the field of plasticiser esters. Holding three patents, Van Dop is recognized for his innovative approaches and solutions, especially in the realm of chemical compositions and processes.
Latest Patents
Van Dop's most recent patents focus on advanced compositions produced from plasticiser esters. His first patent involves compositions that include a C to C phthalate ester containing titanium in amounts less than 0.01 ppm by weight. This innovation, prepared through titanium-catalyzed esterification, highlights the importance of antioxidant integration, ranging from 0.1 to 2.0 wt %.
Another notable patent addresses the production of plasticiser esters through a catalyzed reaction between alcohols and acids or anhydrides. This process distinctly involves neutralizing the esters using an aqueous alkaline alkali metal salt solution, ensuring that the treatment maintains an appropriate relation to the acidity of the crude ester. Remarkably, when titanium serves as the esterification catalyst, the resultant ester exhibits less than 0.01 ppm by weight of titanium residue, enhancing its storage stability in the presence of antioxidants.
Career Highlights
Leendert Johannes Van Dop has worked significantly with ExxonMobil Chemical Patents Inc. His tenure at this leading chemical company provided him with a robust platform to advance his research and lead pivotal innovations in the field of plasticisers.
Collaborations
During his career, Van Dop collaborated with esteemed colleagues, including Brady A. Compton and John Lyford, who have further enriched his research endeavors. These partnerships underscore the collaborative spirit of innovation that defines the chemical industry.
Conclusion
Leendert Johannes Van Dop stands out as a notable inventor whose work in plasticiser esters has implications for various applications. His patented innovations reflect a commitment to enhancing the stability and effectiveness of chemical compositions. Through his inventive spirit and collaborative efforts, Van Dop continues to influence advancements in the field of chemistry.