Process for drawing acrylic fibrous materials to form a product

Details Process for drawing acrylic fibrous materials to form a product Process for drawing acrylic fibrous materials to form a product

1974-06-10

1976-08-17

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating with particulate material

264 291, 264136, 264182, 264DIG19, 4234471, 427112, 427174, 427227, B29C 2500, B28B 1106

Patent

active

039754820

ABSTRACT:
An improved process for drawing a continuous length of an acrylic multifilament fibrous material is provided. Prior to drawing at an elevated temperature by continuous passage through a suitable drawing zone the surface of the fibrous material is coated with powdered graphite (e.g. colloidal graphite) via contact with a dipersion containing the graphite paticles which serve to improve the drawing properties of the same. The process is suited for the hot drawing of a continuous length of an acrylic multifilament fibrous material (e.g. a substantially untwisted tow) which is intended for subsequent thermal stabilization, and cabonization to form a carbonaceous fibrous material.

REFERENCES:
patent: 2034008 (1936-03-01), Taylor
patent: 2432776 (1947-12-01), Lis et al.
patent: 2697023 (1954-12-01), Martin
patent: 3508874 (1970-04-01), Rulison
patent: 3520766 (1970-07-01), Newman
patent: 3656903 (1972-04-01), Stuetz

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