Thermoplastic olefinics

Blend with Isotactic Polypropylene and Thermoplastic Olefin... 

Thermoplastic molding applications for VDC copolymers, 25 726-727 Thermoplastic olefin polymer of amorphous structure (TOPAS), 16 113 Thermoplastic polyester bottles, recycling, 20 54-56... 

Anionic Thermoplastic olefin elastomers (copolymers of butadiene, isoprene, and styrene)... 

Thermoplastic elastomers (TPEs) are either block copolymers (SBS, SEES, SEPS, TPU, COPA, COPE) or blends, such as TPO (elastomer/hard thermoplastic, also referred to as thermoplastic olefin) and TPV (fhermoplastic vul-canizafe, blend of a vulcanized elastomer and a hard fhermoplastic). These types represent the majority of fhe TPEs other types are either specialty or small-volume materials. 

In our laboratory, polymer CE microchips in combination with EC detection have been successfully used as miniaturised devices for determination of clinically important analytes. As commented in Section 34.1.2, poly(methylmethacrylate) (PMMA) is one of the most used polymers for manufacturing microchips. Recently, cyclic olefin copolymers (COCs) such as Topas (thermoplastic olefin polymer of amorphous... 

Kohara S et al. (1999) Thermoplastic olefin elastomer compositions with low compression set, no oil bleeding, and good weather resistance. JP Patent 11181172... 

Sibahara S, Sugisaki A, Iwasa T (2000) Thermoplastic olefin rubber compositions for oil- and weather-resistant moldings. WO Patent 2000043447... 

Sometimes primers can take the place of surface treatments. Two examples are with porous substrates and with certain plastic substrates. With weak porous substrates, such as wood, cement, or porous stone, the primer can be formulated to penetrate and bind weakly adhering material to provide a new, tightly anchored surface for the adhesive. Chlorinated polyolefin primers will increase the adhesion of coatings and adhesives to polypropylene and to thermoplastic olefins. The chlorine atoms in the outer surface of the primer increase surface energy and enhance adhesion of adhesives, sealants, and paints. 

Applications of ethylene-propylene copolymers and terpolymers include automotive (the major use area), thermoplastic olefin elastomers, single-ply roofing, viscosity index improvers for lube oils, wire and cable insulation, hose, appliance parts, and polymer modification. 

Thermoplastic Olefin. These thermoplastic elastomers are primarily blends, or block or graft copolymers, of ethylene/propylene rubber with polypropylene. 

Thermoplastic Vulcanizates. These are a surprising improvement over conventional thermoplastic olefins. Vulcanized ethylene/... 

Thermoplastic polyurethanes Acetals copolymers only Thermoplastic rubbers some only Thermoplastic olefins some only Cellulosics only certain dyes... 

Thermoplastic olefins (TPOs) have found increasing application in the automotive industry due to their competitive advantages over steel, such as low cost,... 

Lin, Y.-S. Yasuda, H.K. Low-temperature cascade arc torch treatments for enhanced adhesion of primer to thermoplastic olefins. J. Appl. Polym. Sci. 1998, 67, 855-863. 

GM recently put into production a new nanocomposite made from thermoplastic olefin with a clay filler. Only about 2 percent clay is used, compared with 20 to 30 percent talc in the composite material it replaces. Two advantages of this new nanocomposite are that it is both light-weight and recyclable. Presently, this nanocomposite is used in the step assist for the full-sized van, but a future goal is to use it in body applications such as vertical and horizontal panels. 

The choice of date range is arbitrary. The number of journal articles for each year was obtained from a search of electronic version of English-based polymer and polymer-related journals using the keywords polyolefin and blends. Within polyolefin keyword, the subkeywords used in the search were polyethylene (PE, LLDPE, LDPE, HDPE, UHMWPE, PE, etc.), polypropylene (PP, iPP, sPP, aPP, etc.), polybutene-1, poly-4-methylpentene-l, ethylene-diene monomer, ethylene-propylene-diene terpolymer, ethylene propylene rubber, thermoplastic olefins, natural rubber (NR), polybutadiene, polyisobutylene (PIB), polyisoprene, and polyolefin elastomer. For the polyolefin blends patent search, polymer indexing codes and manual codes were used to search for the patents in Derwent World Patent Index based on the above keywords listed in the search strategy. 

Transmission electron microscopy Glass transition temperature Thermoplastic elastomer Thermoplastic olefin... 

F. M. Mirabella, Polypropylene and thermoplastic olefin nanocomposites, in Encyclopedia of Nanoscience and Nanotechnology, J. A. Schwarz, C. I. Contescu, and K. Putyera (eds.), Marcel Dekker, New York, 2004. 

Haylock, J. C., Addeo, A., and Hogan, A. J. 1990. Thermoplastic olefins for automotive soft interior trim. SAE International Congress and Exposition, Detroit, MI (Feb. 26-March 2, 1990). 

General Motors R D and Montell U.S.A. have developed thermoplastic olefin (TPO) clay nano composites with reduced weight and good dimensional stability for exterior automotive applications [24]. PE nanocomposites have also been made effectively by ethylene homo- and copolymerization in the presence of organoclays (see Chapter 5), catalyzed with methylalnminoxane (MAO)-activated zirconocene, nickel, and palladium catalysts [25]. 

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