| 摘要 |
PROBLEM TO BE SOLVED: To provide dramatic effects on ST and UST limits of a blended compound composed of at least one elastomeric EAO polymer or EAO polymer blended compound with a high melting point polyolefin such as PP without effect on ST or UST limit of the EAO polymer, and further to provide an STI surpassing STI of a blended compound of (a) a rheology-modified EAO polymer or EAO polymer blended compound, or (b) the same high melting point polyolefin without modification of rheology and the EAO polymer or the EAO polymer blended compound. SOLUTION: The TPE composition with modified rheology is prepared by a peroxide modification of a fused blended compound of an EAO polymer or an EAO polymer blended compound, and a high melting point blended compound such as polypropylene or a propylene/α-olefin copolymer. The resultant composition has an elastomeric and non-elastomeric phase, and certain characteristics surpassing the physical properties of the similar rheology non-modified composition or the composition having same physical properties prior the modification of rheology. The blended composition can be used for production of various products such as automobile parts, non-automobile parts, roof films and shafts of boots by conventional procedures. COPYRIGHT: (C)2008,JPO&INPIT
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