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1. (WO2017172273) MODIFIED POLYETHYLENE RESINS AND METHOD FOR MAKING THE SAME

Pub. No.:    WO/2017/172273    International Application No.:    PCT/US2017/020936
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Tue Mar 07 00:59:59 CET 2017
IPC: C08L 23/04
Applicants: DOW GLOBAL TECHNOLOGIES LLC
Inventors: WILLIAMSON, Alexander
SSUBRAMANIAM, Surya
GOMES, Jorge C.
Title: MODIFIED POLYETHYLENE RESINS AND METHOD FOR MAKING THE SAME
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/cm3 to 0.970 g/cm3, 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/cm3 to 0.970 g/cm3, 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.