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US 2010/0062275 A1Published application
Antistatic ionomer composition and articles therewith
AssigneeE. I. Du Pont de Nemours and Company
InventorsKazuyuki Nakata, David J. Walsh
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Abstract
Disclosed are ionomer compositions neutralized by a combination of cesium and potassium that have antistatic properties. Also disclosed are articles, including laminates and monolayer or multilayer structures comprising such compositions to which neither powders nor dusts easily adhere electrostatically.
Claims20
A composition comprising an ionomer wherein
- the composition is electrostatic dissipative and the ionomer comprises at least one E/X/Y copolymer;
- the composition has a melt index of at least 0.1 g/10 min at 190° C. with a weight of 2.16 Kg;
- the composition has a surface resistivity of less than 1×1012 ohm/square, measured at 23° C. at 50% relative humidity;
- E is ethylene, X is a C3 to C8 α,β ethylenically unsaturated carboxylic acid, and Y is alkyl acrylate or alkyl methacrylate;
- and
- at least 80% of the total acid moieties in the copolymer are neutralized with cesium and potassium.
3 more elements
Dependencies are inferred from the claim text.