Accession Number:

AD0646224

Title:

VOLUMETRIC DETERMINATION OF FREE ISOCYANATE IN URETHANE COATING RESINS.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY COATING AND CHEMICAL LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1966-11-01

Pagination or Media Count:

12.0

Abstract:

A procedure is described for the determination of free isocyanate in urethane coating materials. Increasingly large quantities of urethane resins are being consumed and since the presence of relatively small amounts of free toluene diisocyanate TDI is considered a health hazard, it was considered essential to devise a procedure for its determination. Free TDI is separated from prepolymers and resins by vacuum distillation and the isolated isocyanate is determined volumetrically.

Subject Categories:

  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE