David Cressey

Title: Innovations by David Cressey: Pioneering Hydraulic Fluid and Linear Compounds

Introduction

David Cressey, an accomplished inventor based in Belper, GB, has made significant contributions to the field of hydraulic fluids and linear compounds. With a total of three patents to his name, Cressey has positioned himself as a forward-thinking innovator at The Lubrizol Corporation.

Latest Patents

Cressey's latest patents showcase his expertise in developing advanced compositions. One of his notable inventions is a hydraulic fluid composition that incorporates an oil of lubricating viscosity combined with at least 2 wt. % of an ester of a carboxy group-containing interpolymer. This interpolymer consists of units derived from both a vinyl aromatic monomer and a carboxylic acid monomer, further enhanced by nitrogen functionality. Importantly, this hydraulic fluid is designed to be substantially free of polyacrylates and polymethacrylates, marking a significant advancement in fluid technology.

Another of his inventions focuses on linear compounds that include a metal salt or boron-containing metal salt, featuring one or more carboxyl-containing phenol units connected via divalent bridging groups. This new compound is aimed at lubricating oil compositions, where the linear compound or its metal salt is present in a minor amount, blending seamlessly with a major amount of lubricating oil. Cressey has also provided processes for the production of these innovative compounds.

Career Highlights

Throughout his career at The Lubrizol Corporation, David Cressey has demonstrated an impressive ability to innovate and refine products that enhance industry standards and performance. His knowledge and inventions have garnered attention and respect within the engineering community, affirming his role as a pivotal figure in his field.

Collaborations

Cressey has collaborated with notable colleagues, such as David J. Moreton and Stephen J. Cook, further amplifying the synergy of expertise within The Lubrizol Corporation. Their collaborative efforts contribute to a dynamic environment that fosters innovation and creativity.

Conclusion

David Cressey's work exemplifies the essence of innovation in the chemical engineering sector. His patents not only reflect his ingenuity but also underline the continuous advancement in hydraulic fluids and compound technologies. As he furthers his career, Cressey's contributions are sure to leave a lasting impact on the industry and inspire future innovations.