Company Filing History:
Years Active: 2023-2025
Title: Innovations of Chen-Wei Chang
Introduction
Chen-Wei Chang is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of materials science, particularly in the development of eco-friendly adhesives and polyester polyols. With a total of 4 patents to his name, his work reflects a commitment to innovation and sustainability.
Latest Patents
One of Chen-Wei Chang's latest patents is a method for producing polyester polyol. This method involves feeding a first antioxidant and a raw material reactant, which includes a polyacid and a polyol, into a reactor. The process subjects the polyacid and polyol to an esterification reaction to form an oligomer, followed by a prepolymerization reaction to obtain a prepolymerization reactant. The method includes monitoring the acid value of the prepolymerization reactant and adding an esterification reaction catalyst when the acid value reaches a specified threshold. This leads to a polycondensation reaction that generates a polyester polyol.
Another notable patent is for a laminated packaging material and an outer-layer adhesive. The outer-layer adhesive is a polyurethane adhesive formed through a reaction between a polyol material and an isocyanate material. The eco-friendly polyester polyol used in this adhesive is derived from recycled polyester and biomass raw materials, showcasing a sustainable approach to material development.
Career Highlights
Chen-Wei Chang is currently employed at Nan Ya Plastics Corporation, where he continues to innovate in the field of materials science. His work at the company has positioned him as a key player in developing sustainable materials for various applications.
Collaborations
Throughout his career, Chen-Wei Chang has collaborated with notable colleagues, including Te-Chao Liao and Han-Ching Hsu. These collaborations have further enhanced his research and development efforts, leading to impactful innovations in the industry.
Conclusion
Chen-Wei Chang's contributions to the field of materials science, particularly through his patents, highlight his dedication to innovation and sustainability. His work at Nan Ya Plastics Corporation and collaborations with esteemed colleagues underscore his role as a leading inventor in eco-friendly materials.