Company Filing History:
8 out of 480 
4 out of 6,662 
2 out of 13 Years Active: 1990-2008
Title: Innovations by Reinhard Doenges: A Pioneer in Cellulose Ether Production
Introduction
Reinhard Doenges is a notable inventor based in Bad Soden, Germany. With a portfolio comprising 14 patents, he has made significant contributions, particularly in the field of cellulose ethers. His innovations are recognized for their impact on various industries, reflecting his expertise and dedication to his craft.
Latest Patents
Doenges' most recent patents highlight his innovative methods for producing advanced cellulose ethers. One notable patent outlines a method for the production of easily wetted, water-soluble, powdered alkylated non-ionic cellulose ethers. This invention elaborates on a procedure where at least 10% of hydroxy groups are alkylated within a temperature range of 45 to 95°C. The innovation emphasizes the incorporation of surfactants in solid, liquid, or solution forms to produce the cellulose ether effectively.
Another significant patent details the production and application of water-soluble, sulfoalkyl-containing, hydrophobically modified cellulose ethers. These cellulose ethers, substituted with alkyl and sulfoalkyl groups, serve as protective colloids in polymerizations. This invention not only advances the understanding of cellulose chemistry but also broadens its application in various industrial processes.
Career Highlights
Throughout his career, Reinhard Doenges has been associated with esteemed companies such as Clariant Corporation and Hoechst Aktiengesellschaft. His roles in these organizations allowed him to work at the forefront of cellulose ether research and development. His commitment to innovation in this field has established him as a reputable figure in the realm of polymer chemistry.
Collaborations
Doenges has collaborated with notable individuals in the industry, including Horst Wurm and Rudolf Ehrler. These collaborations have likely enriched his research and contributed to the successful development of his patented technologies. Working alongside other experts has fostered an environment of shared knowledge and collective innovation.
Conclusion
Reinhard Doenges exemplifies the spirit of innovation in the area of cellulose ethers. His 14 patents reflect a deep understanding of chemistry and its practical applications. Through his inventions, he has not only contributed to academic knowledge but has also impacted industrial practices, solidifying his legacy as a significant inventor in his field.