Del Joseph Petraitis

Title: Del Joseph Petraitis: Innovator in Silicone Elastomers

Introduction

Del Joseph Petraitis is a notable inventor based in Goleta, California. He has made significant contributions to the field of silicone elastomers, particularly in applications for intraocular lenses. With a total of 7 patents to his name, Petraitis has established himself as a key figure in materials science.

Latest Patents

His latest patents focus on optically clear reinforced silicone elastomers that possess a high optical refractive index and improved mechanical properties. These innovations are particularly suitable for use in intraocular lenses. The elastomers contain 12 to 18 mol percent of aryl substituted siloxane units, along with various siloxane units and dialkyl siloxane units. The polymers exhibit a degree of polymerization between 100 to 2000, with a preferred value of approximately 250. After cross-linking, these polymers demonstrate an optical refractive index of at least 1.44, a type A durometer hardness of at least 35, tensile strength of at least 500 psi, and tear strength of at least 20 pli. These properties make the cross-linked polymers especially suitable for forming the bodies of intraocular lenses.

Career Highlights

Throughout his career, Petraitis has worked with prominent companies such as Allergan, Inc. and Nusil Research. His work has significantly advanced the understanding and application of silicone materials in medical devices.

Collaborations

Some of his notable coworkers include Richard Christ and Brian Allen Nash. Their collaborative efforts have contributed to the success of various projects in the field of silicone elastomers.

Conclusion

Del Joseph Petraitis is a distinguished inventor whose work in silicone elastomers has had a lasting impact on the medical device industry. His innovative patents continue to pave the way for advancements in intraocular lens technology.