Patent · US Active

Polymer composition for producing gel extruded articles and polymer articles made therefrom

US11780995B2 · kind B2 · utility

0Cited by

4References

16Claims

0Family size

Assignee

CELANESE SALES GERMANY GMBH · DE

Inventors

Christian Ohm · Gernsheim, DE
Rainer Walkenhorst · Melle, DE
Patrick Scheibe · Frankfurt am Main, DE

Key dates

Filing date	Dec 21, 2020
Grant date	Oct 10, 2023
Priority date	—
Expiry date	Jul 24, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2207/068
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene particles are particularly selected so that the particles rapidly form a homogeneous gel-like material when combined with the plasticizer during gel processing. In one embodiment, the polyethylene used to produce the particles has a relatively low bulk density. Alternatively or in addition, the particles can have a carefully controlled particle size distribution. Polymer articles such as fibers and films can be produced having little to no imperfections.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.