Company Filing History:
Years Active: 1977-1988
Title: Innovations of Vaclav Kropac
Introduction
Vaclav Kropac is a notable inventor based in Essen, Germany. He has made significant contributions to the field of silicone chemistry, holding a total of 6 patents. His work focuses on the development of heat-curable silicone resins and organopolysiloxanes, which have various industrial applications.
Latest Patents
One of his latest patents is a process for the preparation of heat-curable silicone. This method involves reacting siloxanes with low molecular, multifunctional alcohol and removing the alcohol from the reaction mixture. The process ensures that each siloxane group corresponds to approximately one alcohol group, terminating the reaction at a degree of conversion of 25% to 80% by cooling the mixture to a temperature of less than 100 degrees Celsius. The silicone resins produced through this method exhibit excellent storage stability in the uncured state, a high rate of curing, and outstanding pigment compatibility. The cured resins also demonstrate high thermal stability, good elasticity, and strong adhesion to metallic substrates.
Another significant patent is for the manufacture of organopolysiloxanes for use in adhesive coating materials. This method produces organopolysiloxanes with specific formulas, where R1 is an alkyl group with 1 to 4 carbon atoms, a vinyl group, and/or a phenyl group. Notably, at least 90 mole percent of the R1 groups are methyl groups, enhancing the performance of the resulting adhesive materials.
Career Highlights
Vaclav Kropac has built a successful career at Th. Goldschmidt AG, where he has been instrumental in advancing silicone technology. His innovative approaches have led to the development of materials that are widely used in various industries, including automotive and construction.
Collaborations
Throughout his career, Kropac has collaborated with several professionals, including Gotz Koerner and Christian Weitemeyer. These partnerships have fostered a creative environment that has contributed to the success of his projects.
Conclusion
Vaclav Kropac's contributions to silicone chemistry and his innovative patents have significantly impacted the industry. His work continues to influence the development of advanced materials that meet modern technological demands.