Company Filing History:
Years Active: 1985-1987
Title: Innovations of James A. Crossman
Introduction
James A. Crossman is a notable inventor based in Sarnia, Canada. He has made significant contributions to the field of polymer technology, particularly in the area of fiber dispersion in rubber. With a total of 3 patents to his name, Crossman has demonstrated a commitment to advancing material science.
Latest Patents
One of his latest patents focuses on "Dispersions of fibres in rubber." This innovation involves creating polymer-fiber mixtures with improved homogeneity of fiber dispersion throughout the polymer matrix. The process utilizes fibers that are pre-mixed or coated with a compatible plasticizer, allowing for a more uniform mixture when combined with the polymer matrix. This method effectively reduces agglomerations of fibers, which have historically posed challenges in polymer applications. A preferred fiber for this process is a fibrillated aramid fiber, which has previously been difficult to disperse in polymers. The suitable polymers for this application include hydrocarbon elastomers such as SBR, with aromatic mineral oil as a preferred plasticizer, and oil-resistant NBR elastomers, which work best with ester plasticizers like dioctyl phthalate.
Another significant patent by Crossman is related to "Fibre containing polymers and process for production thereof." This patent describes a process for producing mixtures of polymer and fibrous materials through co-coagulation. It also covers the resulting mixtures and their vulcanizates, showcasing the versatility and potential applications of his innovations.
Career Highlights
James A. Crossman has been associated with Polysar Limited, where he has contributed to various projects and innovations in polymer technology. His work has not only advanced the field but has also provided practical solutions for industry challenges.
Collaborations
Crossman has collaborated with Douglas C. Edwards, further enhancing the scope and impact of his inventions. Their partnership has led to significant advancements in the development of polymer-fiber mixtures.
Conclusion
James A. Crossman is a distinguished inventor whose work in polymer technology has led to innovative solutions for fiber dispersion in rubber. His contributions continue to influence the industry and pave the way for future advancements.