Patent ID: 6432340
Filing Date: 2002-08-13
Classification: C08L,D01F

Abstract:
A process for the melt spinning of one or more thermoplastics at windup speeds of about 1000 m/minute or more, wherein the improvement comprises, spinning said thermoplastic or thermoplastics as a blend which contains about 0.1 to about 10 percent by weight of a liquid crystalline polymer, said percentage based on a total amount of said thermoplastic or thermoplastics present plus said liquid crystalline present,and provided that said liquid crystalline polymer consists essentially of repeat of the formula: (I) at least one repeat unit selected from the group consisting of (III) at least one repeat unit selected from the group consisting of â€ƒwherein: a molar ratio of (II) to (III) ranges from about 25:75 to about 90:10; a molar ratio of (I) to [(II)+(III)] is substantially 1:1; a molar ratio of (IV) to (V) ranges from about 97:3 to about 50:50; a number of moles of (IV) plus (V) ranges from about 100 to about 600 per 100 moles of (I); and wherein (I), (II), (III), (IV), (V) and (VI) are in units of moles.