Ionomer composition
AssigneeDupont-Mitsui Polychemicals Co., Ltd.
InventorEisaku Hirasawa
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Abstract
Disclosed is an ionomer composition comprising an ethylene/unsaturated carboxylic acid copolymer which is at least partially neutralized with at least one alkali metal selected from the group consisting of potassium, rubidium and cesium, wherein the ethylene/unsaturated carboxylic acid copolymer is a blend comprising (A) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 6 to 15 mole % and (B) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 0.5 to 5 mole % at an (A)/(B) weight ratio of from 10/90 to 80/20, and the alkali metal is present in an amount at least 0.4 millimole but smaller than 1.3 millimoles per gram of the ionomer composition. This ionomer composition has an excellent antistatic property and an excellent heat moldability.
Claims16
An ionomer composition comprising a blend of ethylene/unsaturated carboxylic acid copolymers at least partially neutralized with at least one alkali metal selected from the group consisting of potassium, rubidium and cesium, wherein the blend comprises (A) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 6 to 15 moles % and (B) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 0.5 to 5 mole % at an (A)/(B) weight ratio of from 10/90 to 80/20, and the alkali metal is present in an amount of at least 0.4 millimole but smaller than 1.3 millimoles per gram of the ionomer composition with the proviso that both of the components (A) and (B) are at least partially neutralized.
A polymeric antistatic agent comprising as an active ingredient an ionomer composition comprising a blend of ethylene/unsaturated carboxylic acid copolymers each of which is at least partially neutralized with at least one alkali metal selected from the group consisting of potassium, rubidium and cesium, wherein the blend comprises (A) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 6 to 15 mole % and (B) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 0.5 to 5 mole % at an (A)/(B) weight ratio of from 10/90 to 80/20, and the alkali metal is present in an amount of at least 0.4 millimole but smaller than 1.3 millimoles per gram of the ionomer composition.
An antistatic resin composition comprising (I) an ionomer composition comprising a blend of ethylene/unsaturated carboxylic acid copolymers each of which is at least partially neutralized with at least one alkali metal selected from the group consisting of potassium, rubidium and cesium, wherein the blend comprises (A) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 6 to 15 mole % and (B) an ethylene/unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 0.5 to 5 mole % at an (A)/(B) weight ratio of from 10/90 to 80/20, and the alkali metal is present in an amount of at least 0.4 millimole but smaller than 1.3 millimoles per gram of the ionomer composition, and (II) a thermoplastic polymer at a (I)/(II) weight ratio of 5/95 to 99/1.
Dependencies are inferred from the claim text.