Spinning of spandex filaments

Details Spinning of spandex filaments Spinning of spandex filaments

1987-11-16

1989-03-07

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524252, 524507, 524590, 524726, C08K 322

Patent

active

048107379

ABSTRACT:
An improved process is provided for dry spinning spandex filaments which contain titanium dioxide pigment particles and a polymeric tertiary amine stabilizer. An organic base, such as ethylene diamine or diethyl amine, is added to the polymer solution before the titanium dioxide or the polymeric amine stabilizer is added to the solution. Improved spinning continuity and product yield are obtained.

REFERENCES:
patent: 3428711 (1969-02-01), Hunt
patent: 4296174 (1981-10-01), Hanzel et al.
patent: 4575527 (1986-03-01), Dixon et al.

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