Location History:
- Kingsport, TN (US) (1984)
- Jonesborough, TN (US) (1986 - 1995)
Company Filing History:
Years Active: 1984-1995
Title: I Daniel Sand: Innovator in Cellulose Ester Technologies
Introduction
I Daniel Sand is a prominent inventor based in Jonesborough, TN (US), known for his significant contributions to the field of cellulose esters. With a total of 10 patents to his name, Sand has made remarkable advancements in coating compositions and film technologies.
Latest Patents
Among his latest patents, Sand has developed cellulose esters modified with anhydrides of dicarboxylic acids. These novel coating compositions contain modified cellulose esters that possess acid functionality, allowing for their dispersion in aqueous systems. This innovation is particularly beneficial as rheology control agents in coatings applied as waterborne dispersions. Additionally, he has created a light-sensitive silver halide element with a cellulose ester film base. This film is manufactured by esterifying cellulose to form cellulose acetate or cellulose acetate propionate, which is then melt compounded with a non-volatile phosphoric acid ester. The resulting film exhibits excellent properties such as surface smoothness, light transmission, low haze, low color, high elastic modulus, and curl relaxation after aqueous processing. This melt cast film serves as a viable replacement for solvent cast cellulose triacetate in photographic roll films.
Career Highlights
Throughout his career, I Daniel Sand has worked with notable companies such as Eastman Kodak Company and BASF Corporation. His work has significantly impacted the development of advanced materials in the coatings and photographic industries.
Collaborations
Sand has collaborated with esteemed colleagues, including David R. Fagerburg and Freddie A. Shepherd, contributing to the advancement of cellulose ester technologies.
Conclusion
I Daniel Sand's innovative work in cellulose esters and coating compositions has established him as a key figure in his field. His patents reflect a commitment to enhancing material properties and applications, making a lasting impact on the industry.