Mark W Johnson is a notable inventor based in Glenshaw, Pennsylvania. He has made significant contributions to the field of pigment grinding vehicles, holding a total of six patents. His work primarily focuses on improving the stability and performance of cationic electrodeposition paints.

Latest Patents

Among his latest patents is a pigment grinding vehicle containing quaternary ammonium and ternary sulfonium salt groups. This pigment paste is suitable for use in cationic electrodeposition and comprises a cationic resinous grinding vehicle derived from an epoxy resin. The innovation enhances the stability of lead-containing cationic electrodeposition paints. Another significant patent involves sulfonium resins that serve as pigment grinding vehicles in cationic applications. This cationic resin is also derived from an epoxy resin and contains ternary sulfonium groups and alkyl phenoxide groups. The pigment pastes derived from this resin provide films with high build and good appearance in cationic electrodeposition methods.

Career Highlights

Mark W Johnson is associated with PPG Industries, Inc., where he continues to develop innovative solutions in the field of coatings and paints. His expertise in resin technology has led to advancements that benefit various applications in the industry.

Collaborations

Throughout his career, Johnson has collaborated with notable colleagues, including Robert D Jerabek and Jeffrey G Koren. These partnerships have fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Mark W Johnson's contributions to the field of pigment grinding vehicles and cationic electrodeposition paints highlight his role as a significant inventor. His work continues to influence the industry and improve product performance.

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