Process for adjusting the viscosity of highly concentrated elast

Details Process for adjusting the viscosity of highly concentrated elast Process for adjusting the viscosity of highly concentrated elast

1996-01-10

1998-04-21

Foelak, Morton

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525459, 525460, 528 49, 528 61, C08F28304

Patent

active

057418675

ABSTRACT:
The invention relates to a process for adjusting the viscosity of highly concentrated elastane solutions by reaction of the solution with secondary aromatic amines in order to produce spinning solutions for the dry or wet spinning of elastane fibres.

REFERENCES:
patent: 5032664 (1991-07-01), Frauendorf et al.
patent: 5061426 (1991-10-01), Frauendorf et al.
patent: 5267430 (1993-12-01), Payen
patent: 5302660 (1994-04-01), Klinksiek et al.

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