Back to results
US 2024/0392129 A1Published application
Fluoropolymer-free processing aids for ethylene-based polymers
OwnerNino RUOCCO, Michael A. LEAF +1inventors
InventorsNino RUOCCO, Michael A. LEAF, Danny VAN HOYWEGHEN
Life of this patent
Estimating the term…
Abstract
Provided herein are polymer compositions comprising a Ziegler Natta-catalyzed polymer and polymer processing aid (PPA) compositions. The PPA composition comprises a polyethylene glycol, and optionally a sorbitan ester or polysorbate. The polyethylene glycol can have molecular weight less than 40,000 g/mol. The polymer can have melt index ratio (MIR) of 20 or greater. The polymer composition is preferably free or substantially free of fluorine, including fluoropolymer-based PPAs.
Claims17
A polymer composition comprising:
- a Ziegler-Natta catalyzed C2-C6 olefin homopolymer or a Ziegler-Natta catalyzed copolymer of two or more C2-C20 α-olefins;
- and
- from 250 to 5000 ppm (on the basis of mass of the polymer composition) of a polymer processing aid (PPA) composition comprising one or more polyethylene glycols;
- wherein all polyethylene glycol of the polymer composition has weight average molecular weight (Mw) less than 40,000 g/mol;
- and
- wherein the polymer composition is substantially free of fluorine.
3 more elements
Dependencies are inferred from the claim text.