John F Firth

Title: Innovations of John F Firth

Introduction

John F Firth is a notable inventor based in West Yorkshire, GB. He has made significant contributions to the field of wallcovering technology, holding a total of 3 patents. His work focuses on processes that enhance the functionality and application of prepasted wallcoverings.

Latest Patents

Firth's latest patents include a process for forming prepasted wallcoverings. This innovative process involves creating a porous surface that carries a dry coating of polymer particles, which become adhesive when wetted by water. The method entails applying a dispersion of these particles in a non-aqueous liquid, stabilized by a polymeric stabilizer, followed by the evaporation of the liquid. Importantly, the dried residue must not form a coherent film and should maintain a softening point that is largely independent of the stabilizer's softening point. Additionally, he has developed a wallcovering that comprises a substrate carrying a water-moistenable coating formed of at least two layers. This design utilizes an anionic polymer that is non-swellable in water and swellable in aqueous alkali, along with a water-soluble cationic polymer.

Career Highlights

John Firth is associated with Allied Colloids Limited, where he has been instrumental in advancing wallcovering technologies. His expertise in polymer chemistry has allowed him to innovate processes that improve the performance and usability of wallcoverings in various applications.

Collaborations

Firth has collaborated with notable colleagues, including John B Clarke and John R Walker. Their combined efforts have contributed to the development of advanced materials and processes in the field.

Conclusion

John F Firth's contributions to wallcovering technology through his innovative patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence the development of functional and effective wallcovering solutions.