Company Filing History:
Years Active: 1981
Title: The Innovative Contributions of Theo Doldissen
Introduction
Theo Doldissen is a notable inventor based in Seelze, Germany. He has made significant contributions to the field of chemical engineering, particularly in the development of flameproofing agents. His work has led to the creation of a unique bisphenol-A derivative that has practical applications in various industries.
Latest Patents
Doldissen holds a patent for the invention titled "2,2-Bis[4-(2,3-dibromopropoxy)-3,5-dibromophenyl]-propane process." This innovative process involves the preparation of 2,2-Bis[4-(2,3-dibromopropoxy)-3,5-dibromophenyl]-propane (BDDP) through a series of chemical reactions. The structural formula of BDDP is represented as ##STR1##. The process begins with the reaction of 2,2-bis[4-hydroxy-3,5-dibromophenyl]-propane with an allyl halide, followed by the bromination of the resulting diallyl ether. In the first step, a lower aliphatic alcohol is used as a solvent, while an aromatic halogenated hydrocarbon is utilized in the second step. The final product is precipitated using excess alcohol and subsequently separated. BDDP is obtained in granule form and is recognized for its effectiveness as a flameproofing agent. Doldissen has been awarded 1 patent for this innovative work.
Career Highlights
Theo Doldissen is associated with Riedel-de Haen Aktiengesellschaft, a company known for its contributions to the chemical industry. His role at the company has allowed him to further develop his innovative ideas and collaborate with other professionals in the field.
Collaborations
Doldissen has worked alongside notable colleagues, including Wolfgang Dannenberg and Walter Heyer. Their collaborative efforts have contributed to advancements in chemical processes and product development.
Conclusion
Theo Doldissen's innovative work in the field of chemical engineering, particularly with his patented process for producing BDDP, showcases his significant contributions to flameproofing technology. His career at Riedel-de Haen Aktiengesellschaft and collaborations with esteemed colleagues further highlight his impact on the industry.