Company Filing History:
Years Active: 1991-1996
Title: Innovations by Li-Chung Chao in Cigarette Paper Technology
Introduction
Li-Chung Chao is an accomplished inventor based in Louisville, KY, known for his significant contributions to the field of cigarette paper technology. With a total of four patents to his name, Chao has focused on innovations that enhance the quality and safety of cigarette products.
Latest Patents
One of Chao's latest patents is for a cigarette paper designed to reduce sidestream smoke properties. This invention incorporates film-forming additives that modify the cigarette paper to minimize the amount of sidestream smoke produced during burning. The sidestream smoke reduction paper includes alginates, such as ammonium alginate, sodium alginate, and potassium alginate, which serve as film-forming agents. These agents are combined with burn additives, including alkali metal salts, to create a coating that significantly reduces visible sidestream smoke compared to traditional papers. Additionally, an acid may be used in conjunction with a burn additive to form a precoat solution, enhancing the effectiveness of the film-forming agents. This innovative paper not only improves smoke quality but also maintains a pleasant taste and increases puff count while ensuring good ash appearance.
Another notable patent involves a dye for coloring cigarette paper. This dye provides a brown color using caramel as the primary coloring agent, along with a plasticizer to prevent brittleness. The formulation can also include carmine to adjust the shade and hue of the brown color. Furthermore, a burn additive may be incorporated to promote the burning of the dyed paper if necessary.
Career Highlights
Li-Chung Chao has made significant strides in his career while working at Brown & Williamson Tobacco Corporation. His work has focused on developing innovative solutions that address both consumer preferences and regulatory requirements in the tobacco industry.
Collaborations
Chao has collaborated with notable colleagues, including Jiunn-Yann Tang and Frank Kelley St Charles, to advance research and development in cigarette paper technology.
Conclusion
Li-Chung Chao's contributions to cigarette paper innovations demonstrate his commitment to improving product quality and safety. His patents reflect a deep understanding of material science and consumer needs, positioning him as a key figure in the tobacco industry.