Process for producing ultra-high molecular weight polyamide fibe

Details Process for producing ultra-high molecular weight polyamide fibe Process for producing ultra-high molecular weight polyamide fibe

1991-08-27

1993-08-10

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

264137, 264236, 427350, 4273722, D01D 1002, D01F 1104

Patent

active

052346447

ABSTRACT:
A process for producing ultra-high molecular weight polyamide fibers by thermal post condensation in the solid phase in the presence of catalysts of normally viscous polyamide fibers below their melting point in the absence of oxygen wherein the fibers have extremely high relative solution viscosities.

REFERENCES:
patent: 3420804 (1969-01-01), Ramsey et al.
patent: 4419400 (1983-12-01), Hindersinn
patent: 4758472 (1988-07-01), Kitamura

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