Olivier Lhost received his PhD in 1990 in non-equilibrium thermodynamics in University of Mons. He then continued his academic researches during three years in quantum chemistry. In 1993, he joined Solvay, where he started working in polyolefin research, an area in which he is still active. He successively occupied several positions as researcher, team manager and senior scientist at Solvay, then BP and now at Total. He is inventor or coinventor of more than 40 patents and author or coauthor of more than 25 publications and book chapters.