公开(公告)号：US3673160A

公开(公告)日：1972-06-27

申请号：US3673160D

申请日：1971-02-02

Applicant: RHODIACETA

Inventor： BUISSON FRANCOIS ,  GRESTEAU JEAN PAUL

IPC: C08G18/08 ,  C08G73/14 ,  D01F6/76 ,  C08G20/32

CPC classification number: C08G73/14 ,  C08G18/0828 ,  D01F6/74 ,  Y10S528/906

Abstract: A process for producing brilliant thermostable polyamide-imide fibers and such fibers so produced, such process comprising extruding an N-methylpyrrolidone solution of a polymer having a structure characterized by the following linkages:

B. amide linkages of the formula:

C. amide linkages of the formula: - NH - Ar1 - NH-CO-R-COaqueous N-methylpyrrolidone coagulating 1.5 X; wherein Ar1 represents a bivalent aromatic radical, Ar2 represents a trivalent aromatic radical, R represents a bivalent aromatic, aliphatic, cycloaliphatic or arylaliphatic radical, and M represents an alkali or alkaline earth metal, linkages B representing at least 3 percent of the total of linkages A, B and C in an aqueous N-methylpryyolidone coagulating bath; drawing the extruded filaments in air at a rate of at least 1.5 X ; drying the filaments to eliminate N-methylpyrrolidone; and drying the filaments. The filaments obtained are characterized in being brilliant, homogenous, thermostable filaments.

Abstract translation: 一种生产辉光热稳定性聚酰胺酰亚胺纤维和如此生产的这种纤维的方法，该方法包括挤出具有以下键合特征的结构的聚合物的N-甲基吡咯烷酮溶液：