John C Crano

Title: Innovations by John C. Crano: A Pioneer in Photochromic Technologies

Introduction: John C. Crano, an esteemed inventor residing in Akron, Ohio, is recognized for his substantial contribution to the field of polymer chemistry. With a remarkable portfolio of 18 patents, Crano's focus lies primarily in developing advanced materials that offer innovative functionalities, particularly in the realm of photochromic compositions.

Latest Patents: Among his most recent patents, John C. Crano has made significant advancements in photochromic organic resin compositions. These compositions are notable for their ability to enhance the properties of impact-resistant polymerizates and coating compositions. His innovative approach combines a polyol with greater than 1.0 hydroxyl groups, a polyisocyanate with more than 1.0 isocyanato groups, and a polyamine curing agent possessing over 1.0 amino groups, producing optically clear and durable articles. His work leads to the creation of ophthalmic lenses and coatings that transition under varying light conditions, achieving both functionality and aesthetic appeal.

Another of his groundbreaking patents involves a polymerizable polyol composition featuring allyl carbonate. This unique formulation consists of a substantial amount of a polyol (allyl carbonate) combined with an alkoxylated bisphenol, resulting in highly effective polymerizates. These compositions can be utilized to develop photochromic products by integrating photochromic substances through thermal transfer techniques, further advancing the field of optical materials.

Career Highlights: John C. Crano has a distinguished career marked by his tenure at prominent companies such as PPG Industries, Inc. and PPG Industries Ohio, Inc. His time at these organizations has allowed him to pioneer solutions that significantly impacted the materials industry, particularly in developing new polymer technologies.

Collaborations: Throughout his career, Crano has collaborated with notable colleagues, including Ronald L. Haynes and Douglas S. McBain. These partnerships have fostered an environment of innovation that has led to the successful development of various patents and advancements in polymer technologies.

Conclusion: John C. Crano's innovative contributions to the field of photochromic materials have positioned him as a leader in polymer science. With 18 patents to his name, his work continues to influence industries reliant on advanced materials, showcasing the importance of innovative thinking in driving progress within the field. His legacy serves as an inspiration for future inventors aiming to explore the endless possibilities of polymer chemistry.