18709867. CATALYST HAVING A TRILOBAL GEOMETRY FOR PREPARING POLYTETRAHYDROFURAN (BASF SE)
CATALYST HAVING A TRILOBAL GEOMETRY FOR PREPARING POLYTETRAHYDROFURAN
Organization Name
Inventor(s)
Veronika Wloka of Ludwigshafen (DE)
Thomas Heidemann of Ludwigshafen (DE)
Ines Lottenburger of Ludwigshafen (DE)
CATALYST HAVING A TRILOBAL GEOMETRY FOR PREPARING POLYTETRAHYDROFURAN
This abstract first appeared for US patent application 18709867 titled 'CATALYST HAVING A TRILOBAL GEOMETRY FOR PREPARING POLYTETRAHYDROFURAN
Original Abstract Submitted
A process makes polytetrahydrofuran, polytetrahydrofuran copolymers, or the mono- or diesters thereof by polymerizing tetrahydrofuran and any comonomers over shaped catalyst bodies. The catalyst bodies include an acid-activated sheet silicate, where the shaped catalyst bodies have the shape of trilobes. A cross section of the trilobes is bounded by three convex curves that each make contact with a circle of diameter d that circumscribes the cross section and have three points of intersection within said circle. A distance a from any two points of intersection is 0.5 to 0.65 times the diameter d of the circle that circumscribes the cross section.