R. T. Vanderbilt

R. E. Ohm, ed.. The Vanderbilt Rubber Handbook, 13th ed., R. T. Vanderbilt Co., Inc., Norwalk, Conn., 1990. Contains general information for novices and practical reference formulations for experienced compounders. 

Dry basis natural mbber compound recipe, in part by wt high ammonia natural latex mbber concentrate, 100.0 potassium hydroxide, 0.5 Nacconal 90F (alkylarenesulfonate (AHied Chemical Co.)), 1.0 zinc oxide, 3.0 sulfur, 1.0 ZMBT, 1.0 zinc diethyldithiocarbamate (ZEDC) (trade names Ethazate (Uniroyal, Inc.), Ethyl Zimate (R. T. Vanderbilt), 0.3 antioxidant, as indicated. Wet-basis natural mbber compound recipe, in parts by wt natural latex (NC 356), 167.9 potassium hydroxide, 2.5 Nacconal 90F, 5.0 zinc oxide, 5.45 sulfur, 1.65 ZMBT, 2.0 ZEDC, 2.0 antioxidant, as indicated. AH films poured from freshly mixed compounds, dried overnight in place, then lifted and dried 1 h in air at 50°C before curing. 

Rubber. The mbber industry consumes finely ground metallic selenium and Selenac (selenium diethyl dithiocarbamate, R. T. Vanderbilt). Both are used with natural mbber and styrene—butadiene mbber (SBR) to increase the rate of vulcanization and improve the aging and mechanical properties of sulfudess and low sulfur stocks. Selenac is also used as an accelerator in butyl mbber and as an activator for other types of accelerators, eg, thiazoles (see Rubber chemicals). Selenium compounds are useflil as antioxidants (qv), uv stabilizers, (qv), bonding agents, carbon black activators, and polymerization additives. Selenac improves the adhesion of polyester fibers to mbber. 

N-phenyl-N -(1,3-dimethyl-butyl)- -phenylenediamine [793-24-8] C18H34N3 (10) RU Akron Chemical Co. Goodyear Tire and Rubber Co. Mobay Chemical Co. Monsanto Co. Pennwalt Corp. R. T. Vanderbilt Co., Inc. Ururoyal Chemical UOP, Inc. 

Manufacturers trade names Akron Chemical (Antiozonant), Eastman (Eastozone), Goodyear (Wingstay) (Santoflex), Peimwalt (Anto ), Uniroyal (Flexzone, J-Z-E), Universal Oil Products (UOP), R. T. Vanderbilt (Permanax). 

During some mol ding and extmsion operations, knit line failures, incomplete mold fill, die drag, and excessive heat buildup, ie, scorch, are problems. Many of these problems are reduced or eliminated by the addition of internal lubricants such as low mol wt polyethylene or Vanfre AP-2 Special, a product of R. T. Vanderbilt. 

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