Company Filing History:
2 out of 283 
1 out of 125 Years Active: 1981-1985
Title: Erhard Lange: Innovator in Resin Technology
Introduction
Erhard Lange is a notable inventor based in Marl, Germany. He has made significant contributions to the field of resin technology, holding a total of 3 patents. His work primarily focuses on the development of advanced resin formulations that have practical applications in various industries.
Latest Patents
Lange's latest patents include innovative formulations such as naphtha-soluble, hydrogenated alkyl aryl ketone/formaldehyde resins. One of his notable inventions is a naphtha-soluble, hydrogenated C1-4-alkyl C6-10-aryl ketone/formaldehyde resin. This resin has an oxygen content of at least 6% by weight and a softening point of at least 70°C. The production process involves hydrogenating a C1-4-alkyl C6-10-aryl ketone/formaldehyde resin under a hydrogen pressure of at least 200 bar and a temperature range of 140°C to 300°C, using a nickel, palladium, palladium/copper, or palladium/nickel catalyst. These resins are particularly useful as additives to enhance the hardness of varnishes and other coatings. Another significant patent involves a continuous process for the preparation of butane-1,4-diol, which catalytically hydrogenates a solution of maleic anhydride in a monohydric aliphatic alcohol, in the presence of hydrogen and a copper chromite catalyst.
Career Highlights
Throughout his career, Lange has worked with prominent companies such as Chemische Werke Huls Aktiengesellschaft. His expertise in resin technology has positioned him as a key figure in the development of innovative chemical processes.
Collaborations
Lange has collaborated with notable individuals in his field, including Manfred Z Hausen and Manfred Zur Hausen. These collaborations have contributed to the advancement of resin technology and its applications.
Conclusion
Erhard Lange's contributions to resin technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact various industries, showcasing the importance of innovation in chemical engineering.