Elastomeric alloy

Blends and Elastomeric Alloys 5.4.2.1 Elastomeric Rubber-Plastic Blends... 

Chlorosulfonated polyethylene Elastomeric alloys Polychloroprene EPDM... 

Rader C.P. and Abdou Sabet S., Two phase elastomeric alloys. Thermoplastic Elastomers from Rubber Plastic Blends (De S.K. and Bhowmick, A.K., eds.), Ellis Horwood, London, 1990, 159. 

Most TPEs fall in one of six categories, listed in order of increasing cost and performance styrenic block copolymers, polyolefin blends (TPOs), elastomeric alloys, thermoplastic polyurethanes (TPUs), thermoplastic copolyesters, and thermoplastic polyamides [3]. 

SCH02] ScHOLZ H., POtschke P., Michael H., et al., Morphology and mechanical properties of elastomeric alloys fi-om rubber crumb and thermoplastics , Kautschuk Gummi Kunststoffe, vol. 55, no. 11, pp. 584-589,2002. 

Process of discontinuous production of elastomeric alloys, presentation slides (www.spreelastglobal.com). Magnum D Or Resources, Inc. 2007 (downloaded 4 September 2008). 

Thermoplastic elastomers (TPEs) continue to grow in commercial importance. These materials combine the functional properties of comparable thermoset elastomers with the fabrication advantages of thermoplastics. As a class, TPEs comprise several types of materials such as elastomeric alloys (EAs), styrenic block copolymers, copolyesters, and thermoplastic polyurethanes. 

In earlier literature, these TPEs have been called elastomeric alloys. Most workers in the TPE field have come to prefer the term TPV, since it conveys more clearly the specific nature of these materials. 

PP blends with 5-20 wt% LDPE and 1-15 wt% EPR showed excellent transparency and mechanical properties. Similarly, in Daicel patent PP was blended with 15-85 wt% ABS and 0.5 wt% CPE (or low-molecular-weight PS) as a compatibilizer ( ). EPR patented blaids of 10-60 wt% PP with EPR block copolymer and a pooxide-containing polyolefin copolymer to give a masterbatch that subsequently was blended with 60 wt% EPDM and to give elastomeric alloy with excellent mechanical properties... 

In contrast to the rigid TPOs described above, low-modulus/flexible grades of TPO blends are also produced commercially. In flexible TPOs, the rubber content can be as high as 60 %, and in some cases, the dispersed rubber may also be partially cross-linked during the mixing without losing the thermoplastic character of the matrix. However, the latter type of dynamically vulcanized elastomeric alloys or thermoplastic vulcanizate rubbers (TPVs) are considered as a separate class of elastomeric materials and hence will be discussed under elastomer blends. On the other hand, the soft TPO blends discussed here contain a low-modulus olefln copolymer elastomer as the major component with some polypropylene added to impart melt processability. 

Nipol Polyblends NBR/PVC (30-50 %) elastomeric alloys plasticized or not Nippon Zeon Co., Ltd. 

Polyurethane (Cont d) Elastomeric Alloys PVC and PVC-acetate, MC, Sheets, Rods, and Tubes... 

Polyamides Copolyesters Urethanes Elastomeric Alloys Olefinic Blends Styrenics... 

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