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Synthetic rubber ethylene propylene

A convenient term for any material possessing the properties of a rubber but produced from other than natural sources. A synthetic version of natural rubber has been available for many years with the same chemical formula, i.e., cis-1,4-polyisoprene, but it has not displaced the natural form. See also Butyl Rubber, Chloroprene Rubber, Ethylene-Propylene Rubber, Nitrile Rubber, Silicone Rubber and Styrene-Butadiene Rubber. [Pg.63]

Kennedy JP, Tornqvist EGM (1969) In Natta G, Dall Asta G (eds) Polymer chemistry of Synthetic Elastomers, Ethylene — Propylene Rubbers, Interscience Ihiblishers, New York... [Pg.211]

The main types of rubber used in the field of anti-corrosion are natural rubber, polyisoprene, polybutadiene, polyurethane, butyl rubber, styrene butadiene, nitrile rubber, ethylene propylene rubber, polychloroprene, silicone rubber, and vinylidene rubber. The wide ranges of available natural and synthetic rubbers offer a versatility of properties to suit almost every corrosive condition encountered in the process industries. [Pg.15]

Vulcanization or cross-linking chains by reacting the double bond in natural rubber with sulfur and other crosslinking agents is used to limit stress induced flow in natural rubber. Various means were tried to crosslink the synthetic elastomer ethylene propylene rubber (EPR). The technique commonly used is based on experience with natural rubber. A small amount of a diene [a monomer with two double bonds] is incorporated into the EPR chain to furnish sites for vulcanization reactions. [Pg.20]

Synthetic rubber (ethylene-vinylacetate rubber, EVM ethylene-propylene-diene rubber, EPDM) - new formulas of these materials dehver coatings that are not affected by environmental impact (UV, ozone, humidity, chemicals) and have excellent light transmission (up to 80%). A silica filler provides high tensile strength, high flexibility and very good foldabil-ity, even at low temperatures. [Pg.38]

Synthetic rubbers. Common name of rubbers manufactured by polymerization of monomers. Main types acrylonitrile/butadiene rubber, butadiene rubber, butyl rubber, chloroprene rubber, ethylene/propylene rubber, isoprene rubber, sty-rene/butadiene rubber. [Pg.28]

Elastomers can be divided into two general categories, natural rubber and synthetic rubbers. Synthetic elastomers in turn are either termed general purpose rubbers (GPR) or special purpose rubbers. Natural rubber is generally obtained from southeast Asia or Africa. Synthetic rubbers are produced from monomers obtained from the cracking and refining of petroleum. The most common monomers are styrene, butadiene, isoprene, isobutylene, ethylene, propylene, and acrylonitrile. There are monomers for specialty elastomers which include acrylics, chlorosulfonated polyethylene, chlorinated polyethylene, epichlorohy-drin, ethylene-acrylic, ethylene-octene rubber, ethylene-propylene rubber, flu-oroelastomers, polynorbornene, polysulfides, sihcone rubber, thermoplastic elastomers, urethanes, and ethylene-vinyl acetate. [Pg.7282]

Currently-used elastomers include natural rubber, the identical synthetic cis-polyisoprene, butyl rubber, nitrile rubber, neoprene rubber, ethylene-propylene co-polymer rubber, fluoro rubber, urethane rubber and silicone rubber. [Pg.99]

EPDM in pLASTOTffiRS, SYNTHETIC - ETHYLENE-PROPYLENE-DIENE RUBBER] (Vol 8) -polycarbonate in [POLYCARBONATES] (Vol 19)... [Pg.67]

ELASTOTffiRS,SYNTHETIC - ETHYLENE-PROPYLENE-DIENE RUBBER] (Vol 8)... [Pg.280]

ELASTOPffiRS,SYNTHETic-POLYcm.OROPRENE Elastop rs, SYNTHETIC-ETHYLENE-PROPYLENE-DIENE RUBBER). Tires, hoses, belts, molded and extmded goods, and asphalt products consume ca 80% of the reclaimed mbber manufactured. Typical properties of reclaimed mbbers are shown in Table 5. [Pg.19]

Ethylene—Propylene Rubber. Ethylene and propjiene copolymerize to produce a wide range of elastomeric and thermoplastic products. Often a third monomer such dicyclopentadiene, hexadiene, or ethylene norbomene is incorporated at 2—12% into the polymer backbone and leads to the designation ethylene—propylene—diene monomer (EPDM) mbber (see Elastomers, synthetic-ethylene-propylene-diene rubber). The third monomer introduces sites of unsaturation that allow vulcanization by conventional sulfur cures. At high levels of third monomer it is possible to achieve cure rates that are equivalent to conventional mbbers such as SBR and PBD. Ethylene—propylene mbber (EPR) requires peroxide vulcanization. [Pg.232]

Elastol rs, synthetic-ethylene-propylene-diene rubber). ... [Pg.433]

R. F. Chanshev, S. V. Kovtunenko, F. D. Tsikunkov, R. A. Ismakov, G. V. Konesev, and R. A. Mul5mkov. Lubricant for cutter bit bearings— contains ethylene-propylene synthetic rubber, zinc dioctyl-phenyl dithio-phosphate, polytetrafluoroethylene and mineral oil. Patent SU 1778162-A, 1992. [Pg.370]

Figure 12-2 Scale Model used in the construction of an ethylene-propylene synthetic rubber plant. The completed plant is partially shown in the background. The model is built to a scale of 3/8 inch to 1 foot. After construction was completed, it was used to train technicians. Courtesy of Uniroyal. Figure 12-2 Scale Model used in the construction of an ethylene-propylene synthetic rubber plant. The completed plant is partially shown in the background. The model is built to a scale of 3/8 inch to 1 foot. After construction was completed, it was used to train technicians. Courtesy of Uniroyal.
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See also in sourсe #XX -- [ Pg.357 ]



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