This inventor holds 3 USPTO granted patents. Top assignee: Imperial Chemical Industries Limited. Active years: 1977-1982.
Location History:
- Runcorn, EN (1977)
- Yarm, GB (1982)
Company Filing History:
Years Active: 1977-1982
Title: John Walker: Innovator in Polymer Extraction and Polymerization
Introduction
John Walker is a notable inventor based in Runcorn, GB. He has made significant contributions to the field of polymer science, holding a total of 3 patents. His work primarily focuses on the extraction of poly(.beta.-hydroxy butyric acid) and advancements in polymerization processes.
Latest Patents
One of Walker's latest patents involves the extraction of poly(.beta.-hydroxy butyric acid) from a suspension of bacterial cells. This innovative method enhances the flocculation of cells through pH modification, optionally with heating, allowing for more efficient extraction of PHB using a suitable solvent. The process simplifies the separation of the PHB solution from cell debris, improving overall yield.
Another significant patent details a polymerization process utilizing a transition metal hydrocarbyl complex, particularly zirconium tetrabenzyl, supported on alumina. This method produces particulate polymer with minimal fines, enhancing pourability and usability in various applications.
Career Highlights
John Walker is currently employed at Imperial Chemical Industries Limited, where he continues to develop and refine his innovative techniques in polymer science. His work has garnered attention for its practical applications and contributions to the industry.
Collaborations
Walker has collaborated with notable coworkers, including Eric Jones and Jonathan R Whitton, who have contributed to his research and development efforts.
Conclusion
John Walker's contributions to polymer extraction and polymerization processes highlight his innovative spirit and dedication to advancing the field. His patents reflect a commitment to improving efficiency and effectiveness in polymer science.