Leonid R Vorobyev is a notable inventor based in Walnut Creek, California. He has made significant contributions to the fields of rubber recycling and epoxy resin technology. With a total of 2 patents, his work focuses on innovative methods that enhance material sustainability and performance.

Latest Patents

Vorobyev's latest patents include a method for the devulcanization of sulfur-cured rubber. This invention relates to a composition that effectively recycles used rubber articles by selectively breaking sulfide bonds. The composition features a devulcanizing agent, which is a mixture of triphenylphosphine and 1,8-diazabicyclo[5.4.0]undec-7-ene, in a specific weight ratio. Additionally, it includes a compatibilizer that ensures effective penetration of the devulcanizing agent into rubber crumbs. The required concentration of the devulcanizing agent in the compounded rubber is minimal, not exceeding 1%, with a preferred range of 0.03-0.3%. Another significant patent involves epoxy resin curing agents, specifically a curing agent that utilizes N-phenyl-p-phenylenediamine (4-aminodiphenylamine) in combination with an epoxy resin.

Career Highlights

Throughout his career, Vorobyev has worked with various companies, including Applied Poleramic Inc. and Rubbintec, Sia. His experience in these organizations has allowed him to develop and refine his innovative ideas in material science.

Collaborations

Vorobyev has collaborated with notable coworkers such as Brian S Hayes and Richard Moulton. Their combined expertise has contributed to the advancement of technologies in their respective fields.

Conclusion

Leonid R Vorobyev is a distinguished inventor whose work in rubber recycling and epoxy resin technology showcases his commitment to innovation and sustainability. His patents reflect a deep understanding of material science and a dedication to improving industrial processes.