Company Filing History:
Years Active: 1999
Title: The Innovative Mind of Long-Shuen Jean: A Spotlight on Poly(1,3-propylene terephthalate)
Introduction
Long-Shuen Jean is an accomplished inventor hailing from Chiai Hsien, Taiwan. With a focus on polymer science, he has made significant contributions to the development of new materials. His dedication to innovation is exemplified by his patent for poly(1,3-propylene terephthalate).
Latest Patents
Jean's notable patent, poly(1,3-propylene terephthalate), presents a groundbreaking method for synthesizing a novel polymer. This invention involves the reaction of terephthalic acid and 1,3-propanediol in the presence of a catalytic amount of ethylene glycol titanate to achieve esterification, forming the essential monomer. Subsequently, polymerization occurs in the presence of antimony acetate to produce poly(1,3-propylene terephthalate (PPT). The resulting polymer features an intrinsic viscosity (IV) ranging from 0.65 to 0.91 dl/g and an acid number of less than 40 meq/kg. Remarkably, PPT exhibits a yellowness b* measurement below 9 without pigments, and even below 3 when pigments are incorporated.
Career Highlights
Long-Shuen Jean has solidified his position in the field of polymer research while working at the Industrial Technology Research Institute. His innovative work has contributed substantially to advancements in material sciences and demonstrates his commitment to developing environmentally friendly alternatives in polymer applications.
Collaborations
Throughout his career, Jean has collaborated with other notable researchers, including Tung-Ying Kuo and Jih-Chen Huang. Their teamwork has played a vital role in fostering creativity and driving forward new innovations in their shared field of expertise.
Conclusion
Long-Shuen Jean's contributions to the field of polymer science, especially through his development of poly(1,3-propylene terephthalate), highlight the importance of innovative thinking in addressing contemporary challenges. His ongoing work at the Industrial Technology Research Institute continues to inspire future generations of inventors and researchers in their quest for sustainable and advanced materials.