Melt processable polyester capable of forming an anisotropic mel

Details Melt processable polyester capable of forming an anisotropic mel Melt processable polyester capable of forming an anisotropic mel

1987-07-06

1988-05-24

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

528176, 528193, 528194, C08G 6944

Patent

active

047466944

ABSTRACT:
The novel polyester of the present invention is capable of forming a highly tractable anisotropic melt phase. Such polyester includes a relatively low concentration of 6-oxy-2-naphthoyl moiety in combination with a more substantial concentration of 4-oxybenzoyl moiety. Other key moieties present are, 2,6-dioxynaphthalene moiety and terephthaloyl moiety. The polyester can be formed via a melt polymerization procedure to achieve a relatively high degree of polymerization in view of its relatively low melt viscosity. The polyester upon melt extrusion forms quality high performance fibers, films, and three-dimensional shaped articles. The resulting product also well retains desirable mechanical properties at elevated temperatures.

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patent: 4564669 (1986-01-01), Dicke et al.
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