Terpolymer thermoplastic polyolefin

Thermoplastic Polyolefin n (TPO) Any of a group of elastomers produced by either of two processes. In one, polypropylene is melt-blended with from 15% to 85% of terpolymer elastomer, ethylenepropylene rubber, or styrene-butadiene rubber. In the other, propylene is copolymerized with ethylene-propylene elastomer in a series of reactions. The smaller elastomeric domains obtained in the latter process are claimed to provide improved properties over the blended materials. 

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. 

The blends of EPDM terpolymers and isotactic PP with curing agents, such as peroxide, phenol resins, and sulfur, are termed as thermoplastic vulcanized elastomer (TPV) since the rubber domains are vulcanized. Polyolefin copolymers, such as random copolymer of propylene with ethylene, copolymers of other olefins, elastomeric PP, and elastomeric PE, are developed with recent advances of... 

Blood compatible thermoplastics terpolymers Polyolefins Belgium 868,208 1978 Hoechst A.G. 

Note PP polypropylene PS polystyrene PVC poly(vinyl chloride), POs polyolefins TPE thermoplastic elastomers PU polyurethane PA polyamides ABS acrylonitrile-butadiene-styrene terpolymer LDPE low density polyethylene. 

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