Location History:
- St. Louis, MO (US) (1976)
- St. Louis County, MO (US) (1978)
Company Filing History:
Years Active: 1976-1978
Title: Frank Dai: Innovator in Cellulose Ethers
Introduction
Frank Dai is a notable inventor based in St. Louis, MO (US). He has made significant contributions to the field of cellulose ethers, holding 2 patents that showcase his innovative approach to chemical production.
Latest Patents
One of his latest patents is focused on methyl hydroxypropyl cellulose ethers. This disclosure relates to the production of these ethers, which have a degree of molar substitution (M.S.) greater than 2. The production process is designed to be low-cost and conducted under mild conditions. These ethers are particularly useful in gelling organic solvents with a solubility parameter ranging from 8 to 16. They exhibit compatibility with mixtures of organic solvents and water, effectively gelling solutions with up to about 60% water content.
Another significant patent by Frank Dai involves methyl hydroxypropyl cellulose acetate and its production process. This cellulose ester serves as a gelling agent for organic solvents. The preparation method includes simultaneous hydroxypropylation and methylation of cellulose, followed by acetylation. This overlapping process is efficient and economical, as it simplifies the isolation and recovery of the water-insoluble methyl hydroxypropyl cellulose.
Career Highlights
Frank Dai is currently employed at Anheuser-Busch, Inc., where he applies his expertise in cellulose chemistry to enhance product formulations. His work has contributed to advancements in the food and beverage industry, particularly in the development of gelling agents.
Collaborations
Frank collaborates with talented coworkers, including James Teng and Marcella C Stubits. Their combined efforts foster an innovative environment that drives research and development in cellulose applications.
Conclusion
Frank Dai's contributions to the field of cellulose ethers demonstrate his commitment to innovation and efficiency in chemical production. His patents reflect a deep understanding of material science and its applications in various industries.