Melt blends of polyesters

Details Melt blends of polyesters Melt blends of polyesters

1991-08-15

1992-12-15

Short, Patricia A.

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...

524504, 525 64, 525 65, 525 68, 525438, 525444, C08L 6702, C08L 6704

Patent

active

051717786

ABSTRACT:
A composition prepared by blending liquid crystalline polyesters and linear polyesters under reactive conditions in the presence of at least one poly(O- or N- epoxy alkyl substituted) cyclic amide, imide, or imidate; wherein the blend exhibits an anisotropic melt phase. Articles made from the composition have increased strength stiffness and improved drip characteristics. A preferred embodiment includes a polyalkylene terephthalate, a liquid crystalline polyester with structural units including p-benzoic acid and naphthoic acid, and triglycidyl isocyanurate.

REFERENCES:
patent: 4141882 (1979-02-01), Kodama
patent: 4459390 (1984-07-01), Arai
patent: 4459391 (1984-07-01), Arai
patent: 4459392 (1984-07-01), Arai
patent: 4489190 (1984-12-01), Froix
patent: 4728698 (1988-03-01), Isayev
patent: 4758636 (1988-07-01), Hijikata
patent: 4904746 (1990-02-01), Brown et al.
patent: 4933429 (1990-06-01), McCracken

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