Gerard Velleret

Gerard Velleret is a notable inventor based in Paris, France. He has made significant contributions to the field of chemistry, particularly in the development of sulfur compounds and polymers. With a total of three patents to his name, Velleret's work has implications in various optical applications.

Latest Patents

Velleret's latest patents include innovative sulfur compounds that are polyol esters of mercaptocarboxylic acids. This invention relates to the use of these sulfur esters for preparing polymers that exhibit a refractive index higher than 1.50. Such polymers have potential applications in the manufacture of optical discs and waveguides. Another significant patent involves novel compositions for stabilizing chlorinated polymers, copolymers, and homopolymers. These compositions comprise dawsonite, an organotin β-diketonate, an organic zinc compound, and an organic calcium, magnesium, barium, or lanthanide compound. The invention allows for a reduction in the content of epoxidized oils in chlorinated polymers while maintaining thermal stability.

Career Highlights

Gerard Velleret is associated with Rhone-Poulenc Chimie, where he has been able to apply his expertise in chemistry to develop innovative solutions. His work has been instrumental in advancing the understanding and application of sulfur compounds in various industries.

Collaborations

Some of Velleret's notable coworkers include Louis Carette and Michel M Gay. Their collaborative efforts have contributed to the success of various projects within their field.

Conclusion

Gerard Velleret's contributions to the field of chemistry, particularly in sulfur compounds and polymers, highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving materials used in optical applications and stabilizing polymers.