Company Filing History:
20 out of 12,157 
1 out of 2 
1 out of 15 Years Active: 1977-1998
Title: Hermann Gruber: A Pioneer in Polyisocyanate Technologies
Introduction
Hermann Gruber, a notable inventor based in Leverkusen, Germany, has made significant contributions to the field of polymer chemistry with a focus on polyisocyanates. With an impressive portfolio of 21 patents, he has developed advanced materials that are beneficial for various industrial applications, particularly in the production of polyurethane lacquers.
Latest Patents
Among Hermann Gruber's latest innovations are the patents on polyisocyanates containing ether and urethane groups. One of his notable inventions describes a process for creating polyisocyanates based on polyhydroxy polyethers and tolylene diisocyanate. This process results in polyisocyanates with isocyanate group content ranging from 11.8% to 14.4% by weight and an average isocyanate functionality from 3.1 to 4.0. Additionally, the invention emphasizes achieving a free tolylene diisocyanate content of less than 0.1% by weight. This is accomplished by reacting a polyhydroxy polyether, with a molecular weight of about 350 to 500, with excess quantities of tolylene diisocyanate and subsequently distilling to remove any unreacted excess. These developments are pivotal for the formulation of effective polyurethane lacquers. Another significant patent details an aqueous coating composition that serves as a functional solution for coating mineral substrates.
Career Highlights
Hermann Gruber has been associated with prominent companies, including Bayer Aktiengesellschaft and Correcta GmbH, where he has cultivated his expertise in polymer chemistry and innovation. His extensive research and practical applications in the industry have positioned him as a leading figure in his field.
Collaborations
Throughout his career, Hermann Gruber has collaborated with distinguished colleagues such as Wolfgang Wellner and Josef Pedain. Their joint efforts have further propelled advancements in polyisocyanate technology, enhancing the quality and functionality of various industrial products.
Conclusion
As an inventor with a rich portfolio of patents and a strong professional background, Hermann Gruber continues to influence the field of polymer chemistry. His recent innovations in polyisocyanates not only demonstrate his commitment to advancing technology but also show the potential for practical application in real-world scenarios. Through his contributions, he exemplifies the critical role of inventors in shaping the future of materials science.
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