Poly(p-phenylene-2,5-furandicarbonamide), anisotropic solution,

Details Poly(p-phenylene-2,5-furandicarbonamide), anisotropic solution, Poly(p-phenylene-2,5-furandicarbonamide), anisotropic solution,

1987-08-20

1989-02-21

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

524104, 524401, 524606, 528336, 528342, 528347, C08G 6926

Patent

active

048066230

ABSTRACT:
Poly(p-phenylene-2,5,furandicarbonamide), with an inherent viscosity of at least 1.5 dl/g measured at 30.degree. C. on a 5 g/dl solution in 98% sulphuric acid, is prepared by performing the condensation at 100.degree. C. at most and using a molar excess of triphenylphosphite of 1-20% in respect to the total amounts of p-phenyleediamine and 2,5-furandicarboxylic acid which are started from. Anisotropic solutions of the aforementioned polyamide, filaments and films thereof are disclosed.

REFERENCES:
patent: 4123424 (1978-10-01), Credali et al.
patent: 4129559 (1978-12-01), Credali et al.
Chemical Abstracts No. 196500a, vol. 103, 1985.
Polym. Commun., 26 (8), pp. 246-249 (1985).

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