High strength thermotropic liquid crystalline polymer

摘要

A wholly aromatic thermotropic liquid crystalline polymer and compositions including the liquid crystalline polymer are described. The polymer composition can include the liquid crystalline polymer and a fibrous filler, e.g., a chopped glass or milled glass fibrous filler. The compositions are capable of exhibiting excellent mechanical properties. The liquid crystalline polymer provides desirable characteristics with the incorporation of little or no naphthenic acids in the polymer backbone.

主权项

1. A thermotropic liquid crystalline polymer composition that comprises a melt-polymerized, wholly aromatic liquid crystalline polymer and a fibrous filler, wherein the total amount of repeating units in the liquid crystalline polymer derived from naphthenic acids is no more than about 5 mol. %, wherein the liquid crystalline polymer comprises repeating units derived from isophthalic acid, hydroquinone, and at least one hydroxycarboxylic acid and wherein the polymer composition has a flexural modulus of greater than about 10,000 megaPascals as determined in accordance with ISO Test No. 178 at 23° C.