Derek O'Donnell

Title: Innovations in Pigment Technology by Derek O'Donnell

Introduction

Derek O'Donnell is a notable inventor based in Cleveland, GB. He has made significant contributions to the field of pigment technology, particularly in the development of durable titanium dioxide pigments. With a total of 2 patents to his name, O'Donnell's work has implications for various applications, especially in the paint industry.

Latest Patents

O'Donnell's latest patents focus on the preparation of pigments through innovative coating techniques. One of his patents describes a titanium dioxide pigment with improved durability in paints. This pigment comprises a particulate core of rutile titanium dioxide, which has an inner coating of an oxide or hydrous oxide of zirconium, along with a dense amorphous silica coating. The formulation allows for the pigment to contain up to 5% zirconium oxide and up to 12% dense amorphous silica by weight. This combination results in pigments that exhibit extremely high durability when incorporated into paints.

Another patent by O'Donnell details a titanium dioxide pigment that also boasts high durability. This pigment features a core of rutile titanium dioxide with an inner coating of dense amorphous silica and an outer coating of a hydrous oxide of zirconium. The outer coating of hydrous oxide of aluminum can be present in an amount of up to 6% by weight. The innovative combination of these coatings has proven to be advantageous in producing paints that are resistant to weathering and have excellent durability.

Career Highlights

Derek O'Donnell has been associated with Tioxide Group, Plc, where he has contributed to advancements in pigment technology. His work has not only enhanced the performance of pigments but has also set new standards in the industry. O'Donnell's expertise in the field has made him a valuable asset to his company and the broader scientific community.

Collaborations

O'Donnell has collaborated with various professionals in his field, including his coworker, Peter Barry Howard. Their joint efforts have led to innovative solutions and advancements in pigment technology.

Conclusion

Derek O'Donnell's contributions to pigment technology through his patents have significantly impacted the paint industry. His innovative approaches to enhancing the durability of titanium dioxide pigments demonstrate his commitment to advancing the field. O'Donnell's work continues to influence the development of high-performance materials in various applications.