Accession Number:

AD0733727

Title:

PBI Tow Manufacturing Methods.m

Descriptive Note:

Final technical rept. 1 Dec 69-30 Jun 71,

Corporate Author:

CELANESE RESEARCH CO SUMMIT N J

Personal Author(s):

Report Date:

1971-08-01

Pagination or Media Count:

146.0

Abstract:

The objective of this report was to scale-up the single stage polymerization process, to increase spinning productivity, to establish a tow process for processing large bundles of yarn in a continuous manner, to produce 500 lbs of quality product, and to revise the projected economics of a 1 MM lbyr plant. Spinning productivity was nearly doubled by establishing the ability to spin 200 hole jets. This was the maximum number of holes attainable in a single ring with the available pilot equipment. 300 or more holes could be employed in a commercial application. The potential for additional spinning productivity was demonstrated by spinning and drawing higher filament deniers to give target properties. New jet stariing techniques were demonstrated. Continuous washing, drying, and drawing in tandem was demonstrated with PBI tows of 1000 to 5000 filaments. Target properties were achieved Author, modified-PL

Subject Categories:

  • Textiles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE