AROMATIC POLYAMIDE PULP AND ITS PREPARATION

Japanese Patent JP2686394

B2

PURPOSE: To obtain the subject pulp having excellent physical properties and high polymerization degree by dissolving a Lewis acid type compd. in an amide type or an urea type org. solvent to prepare a polymerization solvent and reacting an arom. diamine and an arom. dichloride therein under the specified conditions.
CONSTITUTION: (A) (ii) A Lewis acid type compd. is dissolved into (i) an amide type and/or an urea type of. solvent, to prepare a polymerization solvent. (B) (iii) An arom. diamine and then (iv) an arom. diacyl chloride are added to the solvent, and reacted until a non-isotropic liq. crystalline polymer soln. is obtained. Then, the polymer soln. is maintained at a predetermined temp. for a predetermined period, and thereafter the polymer soln. is impregnated in a mixed coagulating soln. of a (basic) aq. soln. and the polymerization solvent, to extract the polymerization solvent or pulverized by means of a pulping apparatus without removal of the polymerization solvent. Thereafter, arom. amide pulp in the form of (C) a (co)polymer of the formulae I or II [R1, R2 and R3 are each (substd.) phenylene, biphenylene or the like.] is obtained by drying.

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Yanagi Setsu
Park Eihuang
Kure
Ike Masan

JP10958892A

December 08, 1997

April 28, 1992

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Kolon Co., Ltd.

C08J3/12; C08G69/28; C08G69/32; C08G69/40; C08L77/00; C08L77/10; D01D5/00; D01F6/60; D21H13/26; (IPC1-7): D01F6/60; C08J3/12; C08L77/10

JP62162013A
JP2242912A
JP5951602B2

Aoyama Ryo (1 person outside)

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