A method comprising contacting a support with one or more chromium-containing compounds and one or more boria precursors to provide a catalyst precursor, and activating the catalyst precursor to provide a polymerization catalyst.

 
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< Rework process for photoresist film

> Low dielectric loss tangent-resin varnish, prepreg, laminated sheet, and printed wiring board using the varnish

> Fire retardant coating composition

~ 00570