Location History:
- Florissant, MO (US) (1979 - 1982)
- Kirkwood, MO (US) (1985)
Company Filing History:
2 out of 364 
1 out of 11 
1 out of 21 Years Active: 1979-1985
Title: The Innovative Contributions of William R. Keithler
Introduction
William R. Keithler is a notable inventor based in Florissant, Missouri, recognized for his significant contributions to the field of protective coatings for aluminum and its alloys. With a total of four patents to his name, Keithler has developed innovative processes that enhance the durability and performance of aluminum products.
Latest Patents
Among his latest patents, Keithler has introduced a protective coating composition and process for aluminum and aluminum alloys. This invention describes a method for simultaneously sealing and priming the anodic coating applied to aluminum without requiring elevated temperatures during a subsequent curing step. The composition features a colloidal, water-borne polyurethane resin, which can be an aromatic, aliphatic, or alicyclic copolymer. This innovative coating is curable at ambient temperatures and may include a cross-linking agent and a thermosetting catalyst. The process involves anodizing the component, applying the coating composition at elevated temperatures, and curing the sealed and primed component at ambient temperatures. If cross-linking agents are used, elevated cure temperatures are applied. Another significant patent focuses on a process for sealing anodic coatings on aluminum while simultaneously impregnating the anodic coating with organic resin, providing superior corrosion resistance.
Career Highlights
Throughout his career, Keithler has worked with prominent companies such as Lockheed Corporation and Grow Chemical Corporation. His experience in these organizations has contributed to his expertise in developing advanced coating technologies.
Collaborations
Keithler has collaborated with various professionals in his field, including Robert E. Bradley, enhancing the innovation process through teamwork and shared expertise.
Conclusion
William R. Keithler's contributions to the field of protective coatings for aluminum demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and engineering, paving the way for advancements in the industry.