The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2007
Filed:
Dec. 13, 2002
Pascal E. R. E. J. Lakeman, Bergen op Zoom, NL;
Johan A. Thoen, HB Terneuzen, NL;
Pascal E. R. E. J. Lakeman, Bergen op Zoom, NL;
Johan A. Thoen, HB Terneuzen, NL;
Dow Global Technologies Inc., Midland, MI (US);
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(R)—X, and optionally a group —C(R)—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(R)—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.