Document emo2oj9Qa3GroGMom20n5EaxE

l>\. :J \j i \J l1 v (atidrkWZASBESTOS UNION CARBIDE CORPORATION MINING & METALS DIVISION PLAINTIFFS (| EXHIBIT UNION CARBIDE * UC-377 THE DISCOVERY COMPANY P.0. BOX 579 NIAGARA FALLS, N. Y. 14302 TEL: 716-278-3376 A NEW APPROACH FOR SHOE SOLES AND HEELS The recent petroleum crude crisis has had its effect on the rubber industry with the diminished availability of high styrene SBR resin (85/15 mol/). This material has been a standard additive to shoe sole and heel formulations for many years and its shortage has created a severe hardship for formulators. The formulation below has been developed by Union Carbide in cooperation with other raw material suppliers. It features the following: -- Calidria HPP Asbestos -- LDPE reinforcing resin -- An increased loading of precipitated silica -- Resorcino I/hexamethylenetetramine additions -- Necessary accelerator adjustments By this means one can obtain an optimum cost/performance product without high styrene resin. The use of the HPP/LDPE system has been under investigation on an R & D basis for approximately two years in the USA. The synergistic effect of the system has been verified by many investigators. SUGGESTED STARTING FORMULATION I ngred i ents_______________ SBR Hi Sil 233 (ppt. silica) Velsicol XL-30 Naphthenic Process Oil *CARB0WAX 6000, Polyethy1ene G1yco1 Resorcinol Hexamethy1enetetramine Stearic Acid Zinc Oxide Sulfur TMTDS MBTS DPG pphr 100 50-60 5-7 5 1 .5-2.5 2.5 1 .6 1 .0 2-4 3.5 0.25 1 .5 0.6 ADDITIONS TO ABOVE TO INCREASE HARDNESS, FLEX-LIFE AND ABRASION RESISTANCE *Low Density P.E., Polyethylene DNPA-3130 *Calidria HPP, High Purity Pelletized Asbestos 25-35 pphr 20-30 pphr *Union Carbide Corporation 2/22/74