Styrene butadiene elastomer

Styrene—butadiene elastomers, emulsion and solution types combined, are reported to be the largest-volume synthetic mbber, with 28.7% of the world consumption of all synthetic mbber in 1994 (38). This percentage has decreased steadily since 1973 when SBR s market share was 57% (39). The decline has been attributed to the switch to radial tires (longer milage) and the growth of other synthetic polymers, such as polyethylene, polypropylene, polyester, and polystyrene. Since 1985, production of SBR has been flat (Table 3). [Pg.499]

James, H. L., Gaylor, V. F., Anthony, N. R., "The Use of Liquid Exclusion Chromatography for Rapid Measurement of Gel in Styrene-Butadiene Elastomers," presented at the 1975 Gel Permeation Chromatography Seminar, Pittsburg, Pennsylvania (October, 1975). [Pg.90]

Polymers with solubility parameters differing from those of the solvent by at least 2.0 H, will not dissolve in the solvent at room temperature. Thus although unvulcanized natural rubber (NR), unvulcanized styrene-butadiene elastomer (SBR), unvulcanized butyl rubber, and EPDM dissolve in gasoline or benzene, the vulcanized (cross-linked) polymers are swollen but will not dissolve due to the presence of the crosslinks. [Pg.208]

Landel and Fedors (53, 54) have recently explored the usefulness of extreme value statistics applied to the statistical distribution of rupture in various unfilled polymer specimens. Both breaking stress and breaking strain of natural rubber (47) and styrene butadiene elastomers (53, 54) may be described by the double exponential distribution... [Pg.228]

The network of the Styrene-Butadiene Elastomers is based on a second principle which, again, differs from the covalent cross-links of typical theromsets. The three-dimensional structure in this case is... [Pg.40]

The Polyurethanes, the third group of polymers which will be discussed in this paper, represent a much broader scope than either the ionomers or the styrene- butadiene elastomers. Because of the large number of possible monomers which can be used for the preparation of polyurethanes and their respective combinations, the... [Pg.41]

Shell Chemical Company, Styrene—butadiene-Elastomers Technical Bul-... [Pg.53]

TABLE 2. Physical properties of styrene-butadiene elastomers initiated with selected thioacetals and terminated with vulcanization agents. [Pg.476]

Prior to 1941, Germany had a major technical and industrial lead over the USA, having already established an industrial styrene monomer production process, a styrene-butadiene elastomer process and a mass styrene polymerization process [6]. Figure 1.2 shows the polymerization vessels at I. G. Farben in 1940. Figure 1.3 shows a bank of polymerization kettles. The Germans began the first technical production of polystyrene in 1930 while the first production of polystyrene in the USA was some 8 years later by Dow in 1938. [Pg.7]

Kraton 101 [Shell], TM for a styrene-butadiene elastomer that requires no vulcanization, while displaying most of the properties of conventional vulcanized polymers. White, free-flowing crumb, readily soluble in a large number of commercially used solvents. [Pg.732]

Finaprene . [FinaChem.] Polybutadiene, styrene-butadiene, styrene iso-prene, or carboxylated styrene butadiene elastomers for footwear, tech, goods, tires, adhesives, bitumen modification, plastic modification. [Pg.145]

SBR styrene-butadiene elastomer Xu binary interaction parameter... [Pg.573]

Acrylonitrile-butadiene elastomers Polyacetylene Styrene-acrylonitiile Styrene-butadiene elastomers Styrene-methylmethacrylate cojxjlymer... [Pg.1011]

S tyrene- acrylonitrile Styrene-butadiene elastomers Styrene-methylmethacrylate copolymer Sulfo-ethylene-propylene-diene monomer ionomers Syndiotactic polystyrene... [Pg.1026]

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