Company Filing History:
Years Active: 1976-1994
Title: Innovations of Lawrence Y Yatsu in Cellulosic Fibers
Introduction
Lawrence Y Yatsu is an accomplished inventor based in New Orleans, LA (US). He holds a total of 3 patents that focus on advancements in cellulosic fibers. His work has significantly contributed to the field of materials science, particularly in enhancing the properties of cellulose.
Latest Patents
One of Yatsu's notable patents is for stable crystalline cellulose III polymorphs. This invention presents a novel cellulosic fiber that exhibits improved resistance to abrasion and increased permeability to chemicals. The process involves treating cellulose, selected from fiber, yarn, fabric, cotton, or mercerized cotton, with ammonia vapors at temperatures ranging from ambient to 140 degrees Celsius and pressures between 100 psi to 1700 psi. This treatment alters the interatomic planar distances, resulting in the production of stable crystalline cellulose III polymorph. Additionally, crystalline cellulose III can be immersed in ethylenediamine and subsequently boiled in dimethylformamide to convert it entirely to cellulose IV.
Career Highlights
Yatsu's career is marked by his innovative contributions to the development of advanced materials. His expertise in cellulose chemistry has led to significant advancements in the textile and materials industries. His patents reflect a deep understanding of the properties and applications of cellulose, showcasing his role as a leading inventor in this domain.
Collaborations
Throughout his career, Yatsu has collaborated with notable colleagues, including Timothy A Calamari, Jr and Ruth R Benerito. These partnerships have fostered a collaborative environment that has enhanced the innovation process and led to groundbreaking developments in cellulosic materials.
Conclusion
Lawrence Y Yatsu's contributions to the field of cellulosic fibers demonstrate his commitment to innovation and excellence. His patents not only advance the understanding of cellulose but also pave the way for new applications in various industries. His work continues to inspire future innovations in materials science.