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:
Jan. 01, 2019
Filed:
Dec. 18, 2015
Dow Global Technologies Llc, Midland, TX (US);
Thomas W. Karjala, Lake Jackson, TX (US);
Jorge Rubalcaba, Pearland, TX (US);
Edward O. Madenjian, Lake Jackson, TX (US);
Curvel Hypolite, Rosharon, TX (US);
Pradeep Jain, Lake Jackson, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The invention provides a process to form a 'first composition comprising a first ethylene/α-olefin interpolymer and a second ethylene/α-olefin interpolymer,' said process comprising polymerizing a first mixture comprising ethylene, an α-olefin, and optionally a polyene, in a stirred tank reactor to form a first ethylene/α-olefin interpolymer, and transferring at least some of the first ethylene/α-olefin interpolymer to a loop reactor, and polymerizing, therein, a second mixture comprising ethylene, an alpha-olefin, and optionally a polyene, in the presence of the first ethylene/α-olefin interpolymer, to form the 'first composition comprising the first ethylene/α-olefin interpolymer and the second ethylene/α-olefin interpolymer.' The invention also provides a polymerization reactor configuration comprising at least the following: a stirred tank reactor followed by a loop reactor.