Stocks- Dow Tumbles again as Mnuchin saps the market's holiday spirit. Polymer demand slow as sharp price fall anticipated.  Crude Oil WTI $42.70 Resin Prices in Euro/KG ABS: 2.04, PMMA:2.95,  PC:3.17, POM:1.84, PS GPPS 1.47, PP homo:1.32, PP random:1.43, PS HIPS:1.57, SAN transparent:2.13