Process for producing crystalline 1,2-polybutadiene

Details Process for producing crystalline 1,2-polybutadiene Process for producing crystalline 1,2-polybutadiene

2006-03-07

2006-03-07

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S171000

Reexamination Certificate

active

07009013

ABSTRACT:
1,3-Butadiene is polymerized in a hydrocarbon solvent using a catalyst system containing (A) a cobalt salt, (B1) a phosphine compound having one branched aliphatic group of 3 or more carbon atoms or one alicyclic group of 5 or more carbon atoms and two aromatic groups, and (C) an organic aluminum compound, or a catalyst system containing (A) a cobalt salt, (B) (B1) a phosphine compound having one branched aliphatic group of 3 or more carbon atoms or one alicyclic group of 5 or more carbon atoms and two aromatic groups and/or (B2) a triarylphosphine compound having three aromatic groups, (C) an organic aluminum compound and (D) an active halogen-containing compound, thereby obtaining crystalline 1,2-polybutadiene.

REFERENCES:
patent: 3182051 (1965-05-01), Marullo et al.
patent: 4954125 (1990-09-01), Ono et al.
patent: 5548045 (1996-08-01), Goto et al.
patent: 5879805 (1999-03-01), Brady et al.
patent: 06-298867 (1994-10-01), None
patent: 07-002927 (1995-01-01), None
patent: 08-059733 (1996-03-01), None
patent: 10-158333 (1998-06-01), None
U.S. Appl. No. 10/521,781, filed Jan. 21, 2005, Shibata et al.

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