Method for producing α-olefin polymer

Details Method for producing α-olefin polymer Method for producing α-olefin polymer

2011-01-11

2011-01-11

Ryan, Patrick (Department: 1795)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S177000, C526S182000, C526S237000, C528S482000, C585S512000, C585S525000, C585S823000

Reexamination Certificate

active

07868111

ABSTRACT:
The present invention provides a method for producing α-olefin polymer, comprising polymerizing α-olefins in the presence of a halogen atom-containing acid catalyst by use of an aliphatic hydrocarbon having 3-12 carbon atoms, which contains 5 to 95 mass % of α-olefin, as a raw material; removing catalyst residue and halogen-containing compounds by bringing a product in the polymerization step into contact with an aluminum atom-containing inorganic solid treatment agent with or without deactivating the catalyst; and separating the α-olefin polymer. According to this method, the catalyst residue and other halogen-containing compounds can be removed, without relying on aqueous deactivation and separation steps using an alkaline aqueous solution or the like, from a polymerization reaction product obtained by polymerization in the presence of a halogen-containing acid catalyst by use of an α-olefin-containing liquid hydrocarbon as a raw material.

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English translation of the International Preliminary Examination Report (Chapter I) of corresponding PCT Application No. PCT/JP2005/007760 (Form PCT/IB/338).

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