07019081 is referenced by 21 patents and cites 388 patents.

Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.

Title
Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers
Application Number
10/613373
Publication Number
7019081 (B2)
Application Date
July 3, 2003
Publication Date
March 28, 2006
Inventor
Charles Cozewith
Bellaire
TX, US
Avinash Chandrakant Gadkari
Houston
TX, US
Sudhin Datta
Houston
TX, US
Assignee
ExxonMobil Chemical Patents
TX, US
IPC
C08L 23/10
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