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. 24, 2020
Filed:
Mar. 06, 2017
Dow Global Technologies Llc, Midland, MI (US);
Alexander Williamson, Rosharon, TX (US);
Surya Ssubramaniam, Richmond, VA (US);
Jorge C. Gomes, Sao Paulo, BR;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A method for increasing the melt strength and/or low shear viscosity of a polyethylene resin, the method comprising: a) providing a first polyethylene resin having a density ranging from 0.900 g/cmto 0.970 g/cm, a melt index ranging from 0.01 g/10 min to 30 g/10 min, and at least 0.20 vinyl groups per 1,000 total carbons; b) providing a masterbatch composition comprising a free radical generator and a second polyethylene resin, wherein the free radical generator has a half-life at 220° C. of less than 200 seconds, and a decomposition energy higher than −250 kJ/mol, and wherein the second polyethylene resin has a density ranging from 0.900 g/cmto 0.970 g/cm, melt index ranging from 0.01 g/10 min to 100 g/10 min; and c) reacting the first polyethylene resin with the masterbatch composition to form a modified polyethylene resin.