Celanese Corporation liquid crystalline polymers

P. C. Yung and H. C. Linstid, 111. Blends of liquid crystalline polymers and poly(arylene sulfide)s having reduced viscosities. US Patent 5418 281, assigned to Hoechst Celanese Corporation (Somerville, NJ), May 23, 1995. 

A history of the industrial development of thermotropic polymers would not be complete without a brief review of preceding technology, that is, the discoveries and developments made in lyotropic polymers. Thus, the timeline of milestones in liquid crystalline polymers proceeds from the initial observation of small molecule liquid crystallinity to the discovery of lyotropic and thermotropic high performance polymers and on through to the recent commercialization of thermotropic polyesters with the introduction of the Vectra (Celanese Corporation) and Xydar (Dartco Manufacturing) families of engineering resins. 

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