This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignee: Byk-Chemie Gmbh. Active years: 1989-2005.
Location History:
- Hamminkeln, DE (1989)
- Wesel, DE (2005)
Company Filing History:
Years Active: 1989-2005
Title: Holger Heilmann: Innovator in Polymeric Urea-Urethane Technologies
Introduction
Holger Heilmann is a notable inventor based in Wesel, Germany. He has made significant contributions to the field of polymer chemistry, particularly in the development of polymeric urea-urethane compounds. With a total of 2 patents to his name, Heilmann's work has implications for various industrial applications.
Latest Patents
His latest patents include innovations in polymeric urea-urethane rheology control agents. The first patent describes a process for preparing a polymeric urea-urethane by reacting a diisocyanate with a polyol to form a doubly NCO-terminated urethane prepolymer. This is followed by a reaction with a mixture of a primary monoamine and a primary diamine, resulting in a polymer that is substantially free of isocyanate and the amines used. This polymer can effectively control the rheology of liquid polymers or polymer solutions.
Another significant patent involves thixotropic formulations that utilize polycarboxylic acid amides to produce hydroxyfunctional carboxamide compounds. These compounds enhance the effectiveness of highly disperse silica as a thickening or thixotroping component. They improve thixotropy in liquid formulations and prevent the settling of silica, thereby maintaining the desired thixotropic properties.
Career Highlights
Holger Heilmann is currently employed at Byk-Chemie GmbH, where he continues to innovate in the field of polymer chemistry. His work has been instrumental in advancing the understanding and application of polymeric materials in various industries.
Collaborations
Heilmann has collaborated with notable colleagues, including Karlheinz Haubennestel and Karl-Heinz Haubennestel, contributing to a dynamic research environment that fosters innovation.
Conclusion
Holger Heilmann's contributions to polymeric urea-urethane technologies highlight his role as a key inventor in the field. His patents not only advance scientific knowledge but also have practical applications in industry.