DETAILED DESCRIPTION OF INVENTION The thermoplastic polymers which are useful in carrying out the instant invention constitute virtually any type of relatively high molecular weight thermoplastic polymer, including polyethylene, polypropylene, polyester, the various polyamides, polyimides, polyamidimides, polyetherimides, polysulfones (e.
g.
, polyether sulfones), polyether ether ketones, polybutylene terephthalate and the like.
The melting point of the polymer must be at least 50.
degree.
F.
and preferably at least 200.
degree.
F.
above ambient conditions.
Higher melting temperatures insure that there will be no undue sticking or binding of the spun fibers prior to use.
In addition to one component polymer systems, mixtures of various thermoplastic polymers may also be employed to advantage where specific combinations of properties are desired.
Of particular importance are the liquid crystal polymers or LCP's.
Examples of these polymers include the wholly aromatic polyester resins which are discussed in the following publications: (a) Polyesters of Hydroxybenzoic Acids, by Russell Gilkey and John R.
Caldwell, J.
of Applied Polymer Sci.
, Vol.
II, Pages 198 to 202 (1959); (b) Polyarylates (Polyesters From Aromatic Dicarboxylic Acids and Bisphenols), by G.
Bier, Polymer, Vol.
15, Pages 527 to 535 (August 1974); (c) Aromatic Polyester Plastics, by S.
G.
Cottis, Modern Plastics, Pages 62 to 63 (July 1975); and (d) Poly(p-Oxybenzoyl Systems): Homopolymer for Coatings: Copolymers for Compression and Injection Molding, by Roger S.
Storm and Steven G.
Cottis, Coatings Plast.
Preprint, Vol.
34, No.
1, Pages 194 to 197 (April 1974).
See also, U.
S.
Pat.
Nos.
3,039,994; 3,169,121; 3,321,437; 3,553,167; 3,637,595; 3,651,014; 3,723,388; 3,759,870; 3,767,621; 3,778,410; 3,787,370; 3,790,528; 3,829,406; 3,890,256; and 3,975,487.
Other polyesters are disclosed, for instance, in (a) Polyester X7GOA Self Reinforced Thermoplastic, by W.
J.
Jackson, Jr.
, H.
F.
Kuhfuss, and T.
F.
Gray, Jr.
, 30th Anniversary Technical Conference, 1975 Reinforced Plastics/Composites Institute, The Society of the Plastics Industry, Inc
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