HANSON TRUST <HAN> U.S. ARM SELLS CHEMICAL UNIT Hanson Trust Plc <HAN> said its U.S. subsidiary, Hanson Industries, sold PCR Inc, a specialty chemicals unit, for 6.25 mln dlrs in cash to <Chemical Partners Inc>. Hanson Industries said it acquired PCR Inc in 1986 as part of its purchase of <SCM Corp>. PCR Inc posted an operating loss in 1986 of 381,000 dlrs on sales of 13.2 mln dlrs, the company said.