Process for isomerizing endo-form of aromatic group-containing norbornenes to exo-form thereof, isomer mixture of aromatic group-containing norbornenes and process for preparing same, and ethylene/aromatic group-containing norborne copolymer and process

Granted: Oct 10, 1995 Filed: Jan 10, 1994

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.