This inventor holds 5 USPTO granted patents. Top assignee: Hoechst Aktiengesellschaft. Active years: 1983-1991.
Company Filing History:
Years Active: 1983-1991
Title: Walter Sprenger: Innovator in Pigment Paste Technology
Introduction
Walter Sprenger is a notable inventor based in Dieburg, Germany. He has made significant contributions to the field of pigment paste technology, holding a total of 5 patents. His work focuses on the development of innovative carrier resins that enhance the quality and performance of paints.
Latest Patents
Sprenger's latest patents include advancements in carrier resins for pigment pastes. One of his inventions relates to paste resins based on epoxide compounds, which contain specific quaternary ammonium groups, hydroxyl groups, and isocyanate radicals. These components are bonded to the epoxy compound, with at least 10 mol % derived from a long-chain, monofunctional isocyanate. The average molecular weight of these paste resins ranges from 500 to 10,000. His inventions also emphasize the preparation and use of these paste resins in water-dilutable paints, particularly electrocoating paints, which yield trouble-free surfaces and consistent film thicknesses across various substrates.
Another patent focuses on paste resins that comprise quaternary ammonium groups, hydroxyl groups, urethane radicals, and specific hydrocarbon radicals. The average molecular weight of these resins is also between 500 to 10,000. This innovation further enhances the quality of water-thinnable paints, ensuring defect-free surfaces and comparable film thicknesses.
Career Highlights
Walter Sprenger is associated with Hoechst Aktiengesellschaft, a prominent company in the chemical industry. His work has significantly impacted the development of high-quality pigment pastes, which are essential for various applications in the paint industry.
Collaborations
Sprenger has collaborated with notable coworkers, including Michael Honel and Gerd Walz. Their combined expertise has contributed to the advancements in pigment paste technology.
Conclusion
Walter Sprenger's innovative work in the field of pigment pastes has led to significant advancements in paint technology. His contributions continue to influence the industry, ensuring high-quality and reliable products.