Polyolefin Gel Processing Composition Containing An Inorganic Acid Scavenger and Method Using Same
AssigneeCelanese Sales Germany GmbH
InventorsChristian Ohm, Dominik Schreiber
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Abstract
A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and an acid scavenger. In accordance with the present disclosure, the acid scavenger is an inorganic compound that is insoluble in the plasticizer and/or any extractions solvents used during the process. In one embodiment, the acid scavenger is a magnesium aluminum hydroxide carbonate.
Claims20
A polymer composition for producing gel extruded articles comprising:
- a plasticizer;
- high density polyethylene particles combined with the plasticizer, and
- an acid scavenger, the acid scavenger comprising an inorganic compound that is insoluble in the plasticizer, the inorganic compound comprising an oxide, a carbonate, a silicate, or mixtures thereof.
A polymer article comprising a fiber, a film, or a membrane, the polymer article being produced by:
- combining a plasticizer with high density polyethylene particles to form a gel-like composition, the gel-like composition further containing an acid scavenger comprising an inorganic compound that is insoluble in the plasticizer, the inorganic compound comprising an oxide, a carbonate, a silicate, or mixtures thereof;
- extruding the gel-like composition through a die to form the polymer article;
- and
- removing at least some of the plasticizer from the formed polymer article, the acid scavenger remaining within the polymer article after the plasticizer has been removed.
Dependencies are inferred from the claim text.