Elastomers tradenames

Polychloroprene rubber (CR) is the most popular and versatile of the elastomers used in adhesives. In the early 1920s, Dr. Nieuwland of the University of Notre Dame synthesized divinyl acetylene from acetylene using copper(l) chloride as catalyst. A few years later, Du Pont scientists joined Dr. Nieuwland s research and prepared monovinyl acetylene, from which, by controlled reaction with hydrochloric acid, the chloroprene monomer (2-chloro-l, 3-butadiene) was obtained. Upon polymerization of chloroprene a rubber-like polymer was obtained. In 1932 it was commercialized under the tradename DuPrene which was changed to Neoprene by DuPont de Nemours in 1936. 

CTBN and ATBN are the most commonly used in structural epoxy adhesive formulations. CTBN (Fig. 8.6) is generally the elastomer of choice because of its miscibility in many epoxy resins. These tougheners were originally developed by BF Goodrich (now Noveon, Inc.) under the tradename Fly car. 

Tedlar is a tradename, property of the E.l. duPont Company for a polyvinyl fluoride polymer which is manufactured by casting in a sheet and stretching to orient the molecules. The personnel of the Elastomers Division of that company advise that Tedlar has excellent resistance to most inorganic acids, bases and salts, and to many, but by no means all, organic compounds and solvents, especially in the liquid phase. However, some solvents in the vapor phase can slowly diffuse through it. The Sauereisen Cement Co., of Pittsburgh, PA, supplies this sheet under the tradename of Sauereisen 90. 

Riteflex Hoechst-Celanese s tradename for its family of copolyester thermoplastic elastomers, rivet, fabricating See forging, riveting See joining, rivet. 

Types of PPS resin include both the crosslinked and linear type. A wide variety of grades is offered. Most of the grades are GF and/or inorganic filler reinforced, but also alloys with PTFE are available as a nonabrasive type, or alloys with elastomers as a high impact type. Tradenames appearing in the references are shown in Table 5.6. 

Many of the elastomers have common names or trade names as well as the chemical name. For example, polychloraprene also goes imder the name of neoprene (DuPont s tradename) or Bayprene (Mobay Corp s tradename). In addition, they also have an ASTM designation that for polychloroprene is CR. 

Six companies currently market metallocene plastomers. Exxon Chemical manufactures and markets ethylene-butene and ethylene-hexene copolymers under the EXACT tradename. Dex-Plastomers, a joint venture of Exxon Chemical and DSM, manufactures ethylene-octene copolymers under the EXACT tradename, which are sold by both partners. Dow Chemical and DuPont Dow Elastomers offer ethylene-octene copolymers. Their tradenames are, respectively, AFFINITY and ENGAGE. Japan Polychem manufactures and markets ethylene-hexene copolymers under the KERNEL tradename. Mitsui Petrochemical manufactures propylene, butene, and octene copolymers sold under the TAFMER tradename, along with nonmetallocene plastomers. 

Ash, M.B. Ash, I.A.(1992) Handbook of Plastic Compounds, Elastomers, and Resins, An International Guide by Category, Tradename, Composition, and Suppliers. VCH, Weinheim. 

By this time it was evident that a commercial market for PEBA did exist. Several applications targeted during the early development of the product appeared to be feasible and a need for commercial quantities of the resin was imminent. In 1981 a commercial production line was brought On stream in Europe, and a unique new family of polyether block amide thermoplastic elastomers under the tradename of PEBAX polyether block amide was formally introduced at Interplas in Birmingham, England. 

The addition of specific fluoropolymers to polyolefins allows for improved processability, including elimination of melt fracture (sharkskin), reduced die build-up, lowered processing viscosity, reduced die pressure and abihty to increase extrusion rates [278-282]. The fluoropolymers are generally added at levels of 100-1000 ppm. Vinylidene fluoride-hexafluoro-propylene fluorocarbon elastomers are often mentioned in the patent examples, such as the commercial systems carrying the tradename Viton duPont. 

Various TPEs,TPVs Polyone A series of TPEs and TPVs under the tradenames Elastamax XL, Elastamax EG, Elastamax THE, Forprene , and Synprene offered based on polyolefins, flexible PVC, styrene block copolymers and various elastomers WS... 

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