Mark, not sure if you were on our ECN Vancouver webinar earlier this week, but we just uploaded all of the talks onto YouTube. This is the talk from Paul Lewandowski from Owens Corning, which may be of interest.
Also, I came across this announcement from DuPont. At the end of this press release, it says that:
DuPont expects to begin shipping Styrofoam™ with the DuPont oval effective Jan. 1, 2020, and newly formulated low Global Warming Potential (GWP) Styrofoam™ starting Jan. 1, 2021.