Mark W Johnson

Title: Mark W Johnson: Innovator in Pigment Technology

Introduction

Mark W Johnson is a notable inventor based in Goose Creek, SC (US). He has made significant contributions to the field of pigment technology, holding a total of 4 patents. His work focuses on improving the properties and applications of pigments in various industries.

Latest Patents

One of his latest patents is for high transparency pigments. This invention provides a method for preparing conditioned pigments that have smaller diameters and increased color strength, masstone, and travel by milling pigment with a dispersant comprising polyurethane. The invention also includes the conditioned pigments prepared by this method and their applications to paints, coatings, inks, plastics, optical devices, and color filters. Another significant patent involves pigments with improved dispersibility. This method prepares a pigment composition for a plastics colorant by mixing a press cake of the pigment with a liquid containing a selected type of dispersant before drying the resulting slurry. This composition has improved dispersibility in thermoplastic or thermoset resins, greatly reducing filter pressure rise in molding systems for preparing masterbatches or various plastic compositions.

Career Highlights

Throughout his career, Mark W Johnson has worked with prominent companies such as Bayer Corporation and Sun Chemical Corporation. His experience in these organizations has allowed him to develop innovative solutions in pigment technology.

Collaborations

Mark has collaborated with notable professionals in his field, including Gregory R Schulz and Thomas R Flatt. These collaborations have contributed to the advancement of his research and inventions.

Conclusion

Mark W Johnson is a distinguished inventor whose work in pigment technology has led to significant advancements in the industry. His innovative patents and collaborations reflect his commitment to improving the properties and applications of pigments.