Title:
【発明の名称】ポリプロピレン、より高級なアルファ-オレフィンコポリマーから製造された製品
Document Type and Number:
Japanese Patent JP2000501140
Kind Code:
A
Abstract:
A molded or extruded article made from a propylene, alpha -olefin copolymer, where the alpha -olefin has 5 or more carbon atoms (higher alpha-olefins (HAO)), where the copolymer is made with a metallocene catalyst system, provides substantially higher cold flow resistance and resiliency than when the propylene copolymer contains an alpha -olefin of 4 or less carbon atoms. Other properties such as ultimate tensile strength and impact strength are substantially higher as well. Such polymers can be used to advantage in extruded profiles and molded parts either alone or in a thermoplastic olefin (TPO). Parts made from the propylene HAO copolymers or compounds made from them show improved creep resistance than propylene ethylene copolymers.
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Inventors:
Macalpin, James Jay
Meter, Aspy Kay
Oatrun, Gene Pee
Meter, Aspy Kay
Oatrun, Gene Pee
Application Number:
JP52073697A
Publication Date:
February 02, 2000
Filing Date:
December 02, 1996
Export Citation:
Assignee:
Exxon Chemical Patents, Inc.
International Classes:
C08J5/00; C08F4/642; C08F210/06; C08J5/18; C08L23/00; C08L23/14; (IPC1-7): C08L23/14; C08F4/642; C08F210/06; C08J5/00; C08L23/00
Attorney, Agent or Firm:
Yuzo Yamazaki (2 outside)