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:
Sep. 05, 2017
Filed:
Dec. 23, 2014
Dow Global Technologies Llc, Midland, MI (US);
Christopher R. Eddy, Lake Jackson, TX (US);
John O. Osby, Lake Jackson, TX (US);
Sean W. Ewart, Pearland, TX (US);
Sarat Munjal, Freeport, TX (US);
Stefan Hinrichs, Wondelgem, BE;
Otto J. Berbee, Hulst, NL;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene and at least one asymmetrical polyene, comprising an 'alpha, beta unsaturated—carbonyl end' and a 'C—C double bond end,' and wherein the polymerization takes place in the presence of at least one free-radical initiator, and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone I and reaction zone i (i>2), wherein reaction zone I is downstream from reaction zone I; and wherein at least one chain transfer agent (CTA) is added to the polymerization, and wherein the CTA is a saturated hydrocarbon or an unsaturated hydrocarbon.