Bell Seltzer Intellectual Property Law Group of Alston & Bird
Ultra-oriented crystalline filaments and method of making same
 Ultra-oriented, crystalline synthetic filaments with a combination of high tenacity, high dimensional stability, high modulus, and a high fraction of taut-tie molecular phase are produced by extruding a fiber-forming synthetic polymer melt into a liquid isothermal bath, withdrawing the filaments from the bath and then post-treating them at a very low draw ratio. The bath is preferably maintained at a temperature of at least 30.degree. C. above the glass transition temperature of the polymer to enhance the orientation and promote the formation of stable extended chains. Polymer filaments so produced are characterized in that they have ultra-high birefringence, high tenacity and modulus, a high dimensional stability, and a high fraction of taut-tie molecular phase. 
North Carolina State University
Y D D D Y
Y10T D01F D01F D01D Y10T
additional inventional inventional inventional additional
John A. Jiunn-Yow Gao-Yuan Gang Paul A. Ferdinand
Cuculo Chen Chen Wu Tucker Lundberg