MEDCHEM PRODUCTS INC <MDCH> 2ND QTR FEB 28 NET Shr 21 cts vs 21 cts Net 542,119 vs 520,668 Sales 2,035,759 vs 1,804,350 1st half Shr 38 cts vs 42 cts Net 956,228 vs 1,038,300 Sales 3,748,357 vs 3,482,066