This inventor holds 1 USPTO granted patent. Top assignee: Shirley Institute. Active years: 1983.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1983
Title: Innovations of James R Holker in Breathable Polyurethane Films
Introduction
James R Holker is an accomplished inventor based in Sale, GB. He is known for his innovative contributions to the field of materials science, particularly in the development of breathable, non-porous polyurethane films. His work addresses the challenges associated with clothing that is weatherproofed by being coated with plastics material that is low in permeability to water vapor.
Latest Patents
James R Holker holds a patent for a breathable polyurethane film designed for coating fabrics to make them waterproof. This invention comprises a hard segment formed by the reaction of a low molecular weight difunctional compound with excess diisocyanate to create a prepolymer. Additionally, a soft segment is provided by polyethylene glycol, which is reacted with the prepolymer in a stoichiometric amount. The film can also be formed by reacting polyethylene glycol with excess diisocyanate to create a prepolymer that is then reacted with a stoichiometric amount of a low molecular weight difunctional compound. The mechanical properties of the film can be enhanced by cross-linking with a cross-linking agent such as a triisocyanate. Holker's patent is significant as it offers a solution to the discomfort often associated with traditional waterproof clothing.
Career Highlights
James R Holker has made notable strides in his career, particularly through his work at the Shirley Institute. His innovative approach to creating breathable materials has positioned him as a key figure in the field of textile engineering. With a focus on improving the comfort and functionality of weatherproof clothing, Holker's contributions have been recognized within the industry.
Collaborations
James R Holker has collaborated with esteemed colleagues such as Roy Jeffries and George R Lomax. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in material science.
Conclusion
James R Holker's work in developing breathable polyurethane films represents a significant advancement in the field of waterproof clothing. His innovative solutions address the discomfort associated with traditional materials, making a lasting impact on the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile