An analysis of the broken ocean cleanup system that came apart in the Great Pacific Garbage Patch indicates material fatigue coupled with stress concentration from a weld caused a section of the high density polyethylene floater to crack and break.
ExxonMobil adding major PP resin unit in Louisiana
ExxonMobil Chemical Co. plans to build a major new polypropylene resin unit in Baton Rouge, La., with annual production capacity of almost 1 billion pounds.