Spinning of certain high molecular weight anisotropic melt formi

Details Spinning of certain high molecular weight anisotropic melt formi Spinning of certain high molecular weight anisotropic melt formi

1984-06-15

1986-09-16

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

528190, 528191, D01D 510, C08G 6318

Patent

active

046121544

ABSTRACT:
High molecular weight anisotropic melt-forming polyesters are melted and then spun below the melting point through spinneret orifices of less than about 25 mils in diameter to reduce nonuniformity in resulting filaments.

REFERENCES:
patent: 4066620 (1978-01-01), Kleinschuster et al.
patent: 4075262 (1978-02-01), Schaefgen
patent: 4118372 (1978-10-01), Schaefgen
patent: 4161470 (1979-07-01), Calundann
patent: 4183895 (1980-01-01), Luise
patent: 4230817 (1980-10-01), Charbonneau
patent: 4325903 (1982-04-01), Wissbrun et al.
patent: 4346208 (1982-08-01), Fayolle
patent: 4370466 (1983-01-01), Siemionko

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