Process for the preparation of poly-p-phenyleneterephthalamide

Details Process for the preparation of poly-p-phenyleneterephthalamide Process for the preparation of poly-p-phenyleneterephthalamide

1979-11-15

1981-12-29

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528348, C08G 6928, C08G 6932

Patent

active

043083749

ABSTRACT:
A process for making poly-p-phenyleneterephthalamide having an inherent viscosity of at least 2.5 comprises reacting p-phenylene diamine with terephthaloyl chloride in a solvent which contains N-methyl pyrrolidone and at least 5% by weight of calcium chloride based on the weight of N-methyl pyrrolidone.

REFERENCES:
patent: 3063966 (1962-11-01), Kwolek et al.
patent: 3068188 (1962-12-01), Beste et al.
patent: 3232910 (1966-02-01), Preston
patent: 3240760 (1966-03-01), Preston et al.
patent: 3354125 (1967-11-01), Smith et al.
patent: 3673143 (1972-06-01), Bair et al.
patent: 3817941 (1974-06-01), Bair et al.
patent: 3850888 (1974-11-01), Fitzgerald et al.
patent: 3869429 (1975-03-01), Blades
patent: 3966686 (1976-06-01), Asakura et al.
patent: 4045417 (1977-08-01), Yamazaki et al.
patent: 4075172 (1978-02-01), Ozawa et al.
patent: 4169932 (1979-10-01), Sokolov et al.
patent: 4172938 (1979-10-01), Mera et al.
Chemical Abstracts, vol. 77, 1972, 20083x Chodkowski et al.
Polymer Science (USSR), Federov et al., 12, #10-12 (1970), pp. 2475-2491.
Fiber Forming Aromatic Polyamides, ManMade Fibers, vol. 2 (1968), p. 301.
Polymer Science USSR, Savinov et al., 16 (1974), pp. 2406-2411.
Chemical Marketing Reporter, Nov. 1975, pp. 3, 14.
Sowjetische Beitrage zur Faserforschung und Textiltechnik, vol. 10, May, 1973, No. 5, pp. 217-220, (English Translation by Applicants) Federov et al. II.

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