Olefin thermoplastic elastomer, process for producing the same and use thereof

摘要: The olefin thermoplastic elastomer of the invention has an islands-sea structure, in which average particle diameter of the islands phases is not more than 2µm, and a gel fraction ranging from 0.5 to 15% by weight quantity heat melt at temperature 125°C or below, as measured different scanning calorimeter (DSC), 40% total heat of melt. can be obtained melt blending presence crosslinking agent specific amount a blend that contains amounts of: high density polyethylene having density 0.940g/cm 3 more, crystalline ethylene polymer crystallinity determined DSC method of 10% less , an ethylene/α-olefin(/non-conjugated polyene) copolymer rubber comprising ethylene, an α-olefin 20 carbon atoms and optionally non-conjugated polyene, polypropylene. molded product constructed bonding, preferably hot melt bonding above to a vulcanized rubber. According present invention, there provided a capable forming that can bonded rubber (substrate) with sufficient bonding strength without adhesive layer allow for destruction by body rupture, excellent moldability and economic efficiency form light having a hardness elasticity sufficient thermoplastic elastomer, process production thereof, product constructed either elastomers vulcanized rubber.