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:
Nov. 15, 2011
Filed:
Apr. 07, 2008
Patrick Brant, Seabrook, TX (US);
Gary L. Casty, Easton, PA (US);
Gabor Kiss, Hampton, NJ (US);
Raymond A. Cook, Bethlehem, PA (US);
James R. Lattner, LaPorte, TX (US);
Patrick Brant, Seabrook, TX (US);
Gary L. Casty, Easton, PA (US);
Gabor Kiss, Hampton, NJ (US);
Raymond A. Cook, Bethlehem, PA (US);
James R. Lattner, LaPorte, TX (US);
Exxonmobil Chemical Patents Inc., Houston, TX (US);
Abstract
Processes for polymerizing propylene. About 40 wt % to about 80 wt % propylene monomer, based on total weight of propylene monomer and diluent, and about 20 wt % to about 60 wt % diluent, based on total weight of propylene monomer and diluent, can be fed into a reactor. The propylene monomer can be polymerized in the presence of a metallocene catalyst and an activator within the reactor at a temperature of about 80° C. or more and a pressure of about 13 MPa or more to produce a polymer product in a homogenous system. About 20 wt % to about 76 wt % (preferably About 28 wt % to about 76 wt %) propylene monomer, based on total weight of the propylene monomer, diluent, and polymer product, can be present at the reactor exit at steady state conditions.