Company Filing History:
2 out of 14,087 
1 out of 7,865 
Years Active: 1995-2003
Title: Innovations by Inventor Stefan Weigl
Introduction
Stefan Weigl, an accomplished inventor based in Neuss, Germany, has made significant contributions to the field of materials science. With a total of 3 patents to his name, his innovative work primarily focuses on sealant and adhesive compositions that enhance the performance of materials used in various applications, particularly in the automotive industry.
Latest Patents
Among Stefan Weigl's latest patents is the "Sealant composition, article and method." This composition comprises a curable epoxy-containing material, a first thermoplastic polyurethane component, a curative for the epoxy-containing material, and optionally, a second thermoplastic polyurethane component that differs from the first. This innovative sealant is particularly useful for sealing discontinuities in substrate surfaces, especially those found in motor vehicles.
Another notable patent is the "Adhesive article," which involves an adhesive article consisting of a bondable layer with a layer of pressure-sensitive adhesive on at least one major surface. The bondable layer can be a thermosetting, thermoplastic, or hybrid material. What sets this adhesive article apart is its ability to retain its pressure-sensitive characteristics after being stored at room temperature for approximately three months prior to bonding, showcasing impressive performance with an overlap shear measured at room temperature according to ASTM D-1002-94 of at least 6.9 MPa after bonding.
Career Highlights
Stefan Weigl's career boasts significant experience with leading companies in the materials industry, notably 3M Innovative Properties Company and Minnesota Mining and Manufacturing Company. His work in these organizations has allowed him to develop and patent innovative solutions that address practical challenges in sealing and adhesion.
Collaborations
Throughout his career, Stefan has collaborated with esteemed colleagues such as Raymond M. Sawka and Carl W. McMullen. These partnerships have contributed to the successful development of his patented inventions, fostering an environment of creativity and collaboration within the field of materials science.
Conclusion
Stefan Weigl's contributions to innovations in sealants and adhesives have set new standards in the materials industry, particularly in automotive applications. His patents reflect his commitment to advancing technology and improving product performance. As he continues his work, the impact of his innovations will undoubtedly be felt across various sectors, paving the way for future developments in adhesive and sealing technology.