Polymer.Literature is offered comparing Therban EXT EXT Extension EXT Extended EXT External Ext Extraction EXT Exterior (screenwriting) EXT Extinguisher EXT Extruded EXT Extinguished EXT Exeter, England, United Kingdom - Exeter (Airport Code) with XNBR XNBR Carboxylated Nitrile Rubber and HNBR HNBR Hydrogenated Acrylonitrile-Butadiene Rubber . Conversion of butadiene units into ethylene units in the presence of carboxylic car·box·yl n. The univalent radical, COOH, the functional group characteristic of all organic acids. [carb(o)- + ox(y)- + -yl. groups is said to result in a more rugged, tougher polymer. At elevated temperatures, Therban EXT is said to offer better physical properties than XNBR and BNBR (at temperatures up to 170 [degrees] C), maintains excellent tear strength at all temperatures, and provides superior aging resistance to NBR of XNBR, but less than HNBR. Therban EXT is said to clearly outperform the abrasion resistance of HNBR, according to the literature. Excellent adhesion to natural fibers, fabrics, metals and plastics is said to be offered by Therban EXT. (Bayer, Fibers, Additives and Rubber Division, 2603 W. Market St., Akron, OH 44313-4270) Circle 3 on card |
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