Multi-stage process for the (CO) polymerization of olefins

Details Multi-stage process for the (CO) polymerization of olefins Multi-stage process for the (CO) polymerization of olefins

2006-01-31

2006-01-31

Lu, Caixia (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S078000, C526S082000, C526S161000, C526S172000, C502S109000, C502S162000, C502S167000

Reexamination Certificate

active

06992153

ABSTRACT:
Multi-stage process for the polymerization of olefins CH2═CHR, where R is hydrogen or a C1–C10alkyl, cycloalkyl or aryl radical, comprising: (I) a first polymerization stage carried out in the presence of a catalyst comprising the product of the reaction between an alkyl-Al compound and a solid component comprising at least one compound of transition metal M1not containing M1-π bonds, thus obtaining a porous polymer, (II) a treatment stage, wherein said porous polymer is contacted with a compound capable of deactivating the catalyst used in stage (I) and with a late transition metal complex; and (III) a second stage of polymerization, carried out in the presence of the product obtained from treatment stage (II).

REFERENCES:
patent: 4298718 (1981-11-01), Mayr et al.
patent: 4495338 (1985-01-01), Mayr et al.
patent: 4521566 (1985-06-01), Galli et al.
patent: 5589549 (1996-12-01), Govoni et al.
patent: 5672665 (1997-09-01), Agapiou et al.
patent: 5759940 (1998-06-01), Sacchetti et al.
patent: 6136743 (2000-10-01), Sugimura et al.
patent: 6194341 (2001-02-01), Canich et al.
patent: 0361493 (1990-04-01), None
patent: 0361494 (1990-04-01), None
patent: 0362705 (1990-04-01), None
patent: 0395083 (1990-10-01), None
patent: 0451645 (1991-10-01), None
patent: 0553805 (1993-08-01), None
patent: 0553806 (1993-08-01), None
patent: 0575875 (1993-12-01), None
patent: 0728769 (1996-08-01), None
patent: 0789037 (1997-08-01), None
patent: 0893455 (1999-01-01), None
patent: 09278821 (1997-10-01), None
patent: 09278822 (1997-10-01), None
patent: 9602580 (1996-02-01), None
patent: 9602583 (1996-02-01), None
patent: 9612218 (1996-04-01), None
patent: 9623010 (1996-08-01), None
patent: 9702298 (1997-01-01), None
patent: 9738024 (1997-10-01), None
patent: 9748735 (1997-12-01), None
patent: 9748736 (1997-12-01), None
patent: 9827124 (1998-06-01), None
patent: 9830609 (1998-07-01), None
patent: 9830612 (1998-07-01), None
patent: 9840374 (1998-09-01), None
patent: 9842664 (1998-10-01), None
patent: 9842665 (1998-10-01), None
patent: 9844009 (1998-10-01), None
patent: 9849208 (1998-11-01), None
patent: 9921899 (1999-05-01), None
patent: 0011057 (2000-03-01), None
patent: 0022007 (2000-04-01), None
patent: 0121674 (2001-03-01), None
Johnson, Lynda K. et al., J. Am. Chem. Soc., 117: 6414-6415 (1995).
Johnson, Lynda K. et al., J. Am. Chem. Soc., 118: 267-268 (1996).
Small, Brooke L. et al., J. Am. Chem. Soc., 120: 4049-4050 (1998).

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