Additive for rendering inert acidic or halogen-containing...

Details Additive for rendering inert acidic or halogen-containing... Additive for rendering inert acidic or halogen-containing...

2007-03-20

2007-03-20

Mulcahy, Peter D. (Department: 1713)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S110000, C524S111000, C524S113000, C524S583000, C526S348200

Reexamination Certificate

active

10494981

ABSTRACT:
A process for producing olefin polymers, which comprises the steps of polymerizing an olefin monomer in a polymerization zone in the presence of a catalyst comprising a transition metal compound to form an olefin polymer, and adding at the end of or downstream from the polymerization zone a composition having a weight averaged molecular weight of at least 100 and containing a group R, a cation Y, an anionic group —C(R1)2—X−, and optionally a group —C(R1)2—X—H, the composition having a relative the composition having a relative mole fraction n of cations Y and a relative mole fraction m of group —C(R1)2—X—H, wherein 0<n≦1, 0≦−m<1, and n+m=1. Use of such m=1. Use of such a composition for rendering inert undesired quantities of acidic compounds or halogen-containing compounds present in an olefin polymer by mixing the olefin polymer intimately with the additive composition.

REFERENCES:
patent: 3219622 (1965-11-01), Luciano et al.
patent: A067 645 (1982-12-01), None
patent: A071 252 (1983-02-01), None
patent: 2132214 (1984-07-01), None
patent: WO 92/14766 (1992-09-01), None

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