David R Johnstone

Title: David R Johnstone: Innovator in Phenolic Foam Technology

Introduction

David R Johnstone is a notable inventor based in South Glamorgan, GB. He has made significant contributions to the field of materials science, particularly in the development of improved phenolic foams. His innovative approach has led to advancements that are both environmentally friendly and efficient.

Latest Patents

Johnstone holds a patent for a "Process for producing improved phenolic foams from phenolic resole resins." This invention introduces novel blowing agents that comprise a blend of perfluoro- or partially fluorinated-(cyclo)alkanes and hydrogenated chlorofluorocarbons, hydrogenated fluorocarbons, and a low boiling (cyclo)alkane. These blowing agents perform comparably to conventional CFCs but are user-friendly and do not contribute to ozone layer depletion. This technology is particularly beneficial for producing foams from synthetic polymers and resins, especially phenolic foams with very low and stable thermal conductivity.

Career Highlights

Johnstone's career is marked by his work at Bp Chemicals Limited, where he has been instrumental in advancing chemical processes and materials. His expertise in the field has led to the development of innovative solutions that address both performance and environmental concerns.

Collaborations

Throughout his career, Johnstone has collaborated with notable colleagues, including Michael A Barcroft and Kathryn S Gould. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

David R Johnstone's contributions to the field of phenolic foam technology exemplify the impact of innovative thinking in materials science. His work not only enhances product performance but also prioritizes environmental sustainability.