David A Johnson

Title: David A Johnson: Innovator in Aqueous Compositions

Introduction

David A Johnson is a notable inventor based in Sumter, SC (US). He has made significant contributions to the field of aqueous compositions, holding a total of 3 patents. His work primarily focuses on the development of innovative solutions for diffusion transfer products.

Latest Patents

One of David's latest patents is titled "Two-phase acidic aqueous compositions for diffusion transfer products." This invention describes a two-phase acidic aqueous composition designed for use as a neutralization layer. The composition consists of a water-soluble aqueous phase and a water-insoluble particle phase. The particle phase is typically made up of a copolymer that includes recurring units of an organic acid monomer and an organic ester monomer. The aqueous phase contains a water-soluble polymer with recurring units of at least one organic acid monomer. The selected organic acid monomers for the aqueous phase polymer are capable of interacting with the particle phase polymers, ensuring that they are brought into a stabilizing, intimate association with the aqueous phase.

Career Highlights

David A Johnson is currently employed at Polaroid Corporation, where he continues to innovate and develop new technologies. His expertise in aqueous compositions has positioned him as a valuable asset to the company.

Collaborations

Throughout his career, David has collaborated with several talented individuals, including David W Avison and Agota F Fehervari. These collaborations have contributed to the advancement of his research and the successful development of his patents.

Conclusion

David A Johnson is a distinguished inventor whose work in aqueous compositions has led to significant advancements in the field. His innovative patents and collaborations reflect his commitment to enhancing technology in diffusion transfer products.