Joseph D Turpen

Title: Joseph D. Turpen: Innovator in Photochromic Technology

Introduction

Joseph D. Turpen is a notable inventor based in Tuam, Ireland. He has made significant contributions to the field of photochromic technology, particularly through his innovative patent. His work has implications for various applications, enhancing the functionality of materials used in everyday products.

Latest Patents

Joseph D. Turpen holds a patent for a photochromic article. This invention includes a substrate and a photochromic layer formed from a curable photochromic composition. The composition consists of a polyol component that includes a polycarbonate diol, and an isocyanate component that includes an unblocked polyfunctional isocyanate and/or a blocked polyfunctional isocyanate. Notably, the equivalent ratio of blocked/unblocked isocyanate equivalents to hydroxyl equivalents is at least 5:1. The photochromic article exhibits a T(Fade Half Life) at 23° C. of less than or equal to 70 seconds, showcasing its rapid response to light changes.

Career Highlights

Joseph D. Turpen is currently associated with Transitions Optical, Inc., where he continues to develop innovative solutions in the optical industry. His expertise in photochromic materials has positioned him as a key player in advancing technology that enhances user experience in eyewear and other applications.

Collaborations

Throughout his career, Joseph has collaborated with talented individuals such as Elizabeth Ann Zezinka and Emily Amond. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Joseph D. Turpen's contributions to photochromic technology exemplify the impact of innovative thinking in the field of materials science. His patent and ongoing work at Transitions Optical, Inc. highlight the importance of advancements in optical products.