Location History:
- Freinsheim, DE (1998 - 2000)
- Boxdorf, DE (2004)
- Schwarzheide, DE (2007 - 2013)
Company Filing History:
10 out of 10,754 
1 out of 17 
1 out of 5,674 
Years Active: 1998-2013
Title: The Innovative Contributions of Andreas Johann Schmidt
Introduction
Andreas Johann Schmidt is a prominent inventor based in Freinsheim, Germany. He has made significant contributions to the field of chemistry, particularly in the preparation of isocyanates. With a total of 12 patents to his name, Schmidt's work has had a considerable impact on various industrial applications.
Latest Patents
Schmidt's latest patents include a multistage process for the preparation of isocyanates. This invention provides a method for continuously preparing organic, distillable polyisocyanates, with a focus on diisocyanates. The process involves reacting organic polyamines with carbonic acid derivatives and alcohols to create low molecular mass monomeric polyurethanes. These polyurethanes are then thermally cleaved, allowing for the separation of usable polyisocyanates and the recycling of by-products and intermediates. Another notable patent is an improved multistage process for the continuous preparation of diisocyanates, which enhances the efficiency of the reaction between diamines and carbonic acid derivatives.
Career Highlights
Throughout his career, Schmidt has worked with notable companies, including BASF Aktiengesellschaft. His experience in these organizations has allowed him to refine his expertise in chemical processes and innovations.
Collaborations
Schmidt has collaborated with esteemed colleagues such as Rudiger Sens and Karl-Heinz Etzbach. These partnerships have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Andreas Johann Schmidt's innovative work in the field of isocyanates has established him as a key figure in chemical engineering. His contributions continue to influence the industry and pave the way for future advancements.