Aromatic Polymer Composition for Use in a Camera Module
AssigneeTicona LLC
InventorYoung Shin Kim
Life of this patent
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Abstract
A polymer composition that contains an aromatic polymer in combination with a tribological formulation is provided. The polymer composition may exhibit a low degree of surface friction that minimizes the extent to which a skin layer is peeled off during use of a part containing the composition (e.g., in a camera module). For example, the polymer composition may exhibit a dynamic coefficient of friction of about 1.0 or less and/or a wear depth may be about 500 micrometers or less as determined in accordance with VDA 230-206:2007.
Claims39
A polymer composition comprising at least one aromatic polymer and a tribological formulation in an amount from about 1 to about 20 parts by weight per 100 parts by weight of the aromatic polymer, wherein the tribological formulation contains a fluorinated additive and a siloxane polymer having a weight average molecular weight of about 100,000 grams per mole or more, and further wherein the weight ratio of the fluorinated additive to the siloxane polymer is from about 0.5 to about 12.
A camera module comprising a base on which is mounted a carrier assembly, wherein the base, carrier assembly, or both comprise a molded part, wherein the molded part contains a polymer composition that comprises at least one thermotropic liquid crystalline polymer and a tribological formulation, wherein the composition exhibits a dynamic coefficient of friction of about 1.0 or less as determined in accordance with VDA 230-206:2007.
Dependencies are inferred from the claim text.