Mark W Perpall

Title: Mark W. Perpall: Innovator in Coating Technologies

Introduction

Mark W. Perpall is a notable inventor based in Indianapolis, IN, recognized for his contributions to coating technologies. He holds 2 patents that focus on enhancing the protection of superalloy substrates against hot corrosion and erosion.

Latest Patents

One of his latest patents is titled "Chromate-free inorganic coating systems for hot corrosion protection of superalloy substrate." This invention describes hexavalent chromium-free slurry formulations that provide superior hot corrosion and high-temperature oxidation protection for superalloy substrates. The formulations include a basecoat slurry and a topcoat slurry, both based on aluminum phosphate aqueous solutions. The basecoat slurry incorporates pigments of metallic particles or metal oxide particles, while the topcoat slurry also utilizes an aluminum phosphate-based solution. This multilayer coating system enhances protection against hot corrosion and high-temperature oxidation.

Another significant patent by Perpall is "Erosion and corrosion resistant overlay coating systems for protection of metal components." This invention features polyurethane-based coatings that exhibit superior erosion and heat resistance, along with antifouling and chemical resistance. These coatings are derived from specific multicomponent slurry compositions, providing enhanced particle erosion resistance and heat resistance, making them ideal for protecting metal components.

Career Highlights

Mark W. Perpall is currently employed at Praxair S.T. Technology, Inc., where he continues to innovate in the field of coating technologies. His work focuses on developing advanced materials that improve the durability and performance of metal components in various applications.

Collaborations

Throughout his career, Perpall has collaborated with talented individuals such as Irina Belov and Zhihong Tang, contributing to the advancement of coating technologies.

Conclusion

Mark W. Perpall's innovative work in coating technologies has significantly impacted the protection of superalloy substrates and metal components. His patents reflect a commitment to developing environmentally friendly and effective solutions in the field.