06927258 is referenced by 31 patents and cites 255 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
Elastic blends comprising crystalline polymer and crystallizable polymers of propylene
Application Number
10/613374
Publication Number
6927258 (B2)
Application Date
July 3, 2003
Publication Date
August 9, 2005
Inventor
Edmund J Stachowski
Houston
TX, US
Periagaram Ravishankar
Kingwood
TX, US
Charles Cozewith
Bellaire
TX, US
Sudhin Datta
Houston
TX, US
Assignee
ExxonMobil Chemical Patents
TX, US
IPC
C08L 023/04
C08L 023/00
C08F 004/42
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