A method of producing a polyurethane catalyst, including connecting one or more chromium containing compounds to a support of one or more boria precursors to provide a catalyst precursor and an activated catalyst precursor.

摘要

Method for preparing a catalyst for polymerizationWhich comprises contacting a substrate with one or more Chromium containing compounds and one or more precursor Boria to provide a catalyst precursor and activate the precursor of CatalHoist.