Antistatic liquid crystalline polymer composition
AssigneeTicona LLC
InventorYoung Shin Kim
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Abstract
A liquid crystalline polymer composition having a reduced tendency to create a static electric charge during a molding operation is provided. More particularly, the composition contains an ionic liquid that is distributed within a liquid crystalline polymer matrix. In addition to being electrically conductive, the ionic liquid can exist in liquid form during melt processing, which allows it to be more uniformly blended within the liquid crystalline polymer matrix. This improves electrical connectivity and thereby enhances the ability of the composition to rapidly dissipate static electric charges from its surface.
Claims27
A polymer composition that comprises an ionic liquid that is distributed within a liquid crystalline polymer matrix, wherein the ionic liquid has a melting temperature of about 400° C. or less and is a salt that contains a cationic species and counterion, wherein the liquid crystalline polymer matrix is formed from a polymer that contains aromatic dicarboxylic acid repeating units, aromatic hydroxycarboxylic acid repeating units, aromatic diol repeating units, aromatic amide units, aromatic amine units, or a combination thereof.
A molded part that comprises a polymer composition, wherein the polymer composition comprises an ionic liquid distributed within a liquid crystalline polymer matrix, and wherein the part exhibits a surface resistivity of about 1×1015 ohms or less as determined in accordance with IEC 60093.
A compact camera module that comprises a generally planar base on which is mounted a lens barrel, wherein the base, barrel, or both have a thickness of about 500 micrometers or less and are formed from a part that contains a polymer composition comprising a liquid crystalline polymer matrix, wherein the part exhibits a surface resistivity of about 1×1015 ohms or less as determined in accordance with IEC 60093.
Dependencies are inferred from the claim text.