Shinya Konuma

Title: Shinya Konuma: Innovator in Polyethylene Terephthalate Manufacturing

Introduction

Shinya Konuma is a notable inventor based in Matsuyama, Japan. He has made significant contributions to the field of polymer manufacturing, particularly in the production of polyethylene terephthalate (PET). His innovative methods have the potential to enhance the efficiency and quality of PET production.

Latest Patents

Shinya Konuma holds a patent for a manufacturing method of polyethylene terephthalate. This method includes a step of melt polycondensation in the presence of a polycondensation catalyst, which is represented by a specific general formula. The process results in polyethylene terephthalate with an intrinsic viscosity ranging from 0.48 to 0.53 dL/g and a terminal carboxyl number between 14 to 22 mmol/kg. Additionally, the method involves solid phase polycondensation to achieve a final product with an intrinsic viscosity of 0.70 to 0.86 dL/g and a terminal carboxyl number of less than 15 mmol/kg. The final step includes applying an aqueous solution of selected salts to the solid phase polycondensed polyethylene terephthalate, ensuring a specific content of sodium, potassium, or cesium in the dried product.

Career Highlights

Shinya Konuma is associated with Teijin Fibers Limited, a company known for its advancements in fiber technology and materials. His work at Teijin has allowed him to focus on innovative manufacturing processes that contribute to the company's reputation in the industry.

Collaborations

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Conclusion

Shinya Konuma's contributions to the manufacturing of polyethylene terephthalate exemplify the importance of innovation in material science. His patented methods not only improve production efficiency but also enhance the quality of the final product.