Geoffrey M Dodwell

Title: Geoffrey M Dodwell: Innovator in Film Base Materials

Introduction

Geoffrey M Dodwell is a notable inventor based in Brentwood, GB. He has made significant contributions to the field of film base materials, holding a total of 5 patents. His work focuses on improving the adhesion and conductivity of photographic films, which has implications for both the quality and durability of photographic products.

Latest Patents

Dodwell's latest patents include innovative methods for creating film base materials. One of his key inventions is a film base material that contains a combination of surfactants. This film is made from a biaxially oriented synthetic linear polyester that has a highly hydrophobic character. The film features a subbing layer obtained from an aqueous latex of a copolymer. This copolymer is prepared by copolymerizing vinylidene chloride, an alkyl acrylate or methacrylate, and optionally a copolymerizable acid. The subbing layer enhances the adhesion between the film support and the photographic emulsion layers, preventing separation or frilling during processing. Additionally, the surface conductivity of the film base is improved, eliminating the need for a separate antistatic layer.

Another significant patent by Dodwell is a method of coating linear polyester with aqueous latex. This method also involves the use of a subbing layer that improves adhesion and surface conductivity, similar to his previous invention. These advancements are crucial for the development of high-quality photographic films.

Career Highlights

Dodwell has had a successful career, primarily working with Ciba-Geigy AG. His expertise in film base materials has positioned him as a key figure in the industry. His innovative approaches have led to advancements that benefit both manufacturers and consumers of photographic products.

Collaborations

Throughout his career, Dodwell has collaborated with notable colleagues, including Norman E Gambles and Peter John Wright. These partnerships have contributed to the development of his patents and innovations in the field.

Conclusion

Geoffrey M Dodwell's contributions to film base materials have significantly impacted the photographic industry. His innovative patents demonstrate his commitment to enhancing the quality and functionality of photographic films. His work continues to influence advancements in this field.