| abstract |
A composition comprising Polytrimethylene terephthalate (PTMT) with a reduced emission of acrolein is obtained by contacting Polytrimethylene terephthalate (PTMT) resin with an effective amount of a melt unstable, organic nitrogen-containing stabilizing compound. Such PTMT resin has an acrolein formation rate at 280 DEG C of less than 15 ppm/minute. Preferably the residual acrolein content of the PTMT resin is less than 5 ppm. Preferred additive compounds include amines, amino acids, amidines, urea and other N-compounds. The additive compounds are added to the polymer in molten state and/or to the resin, which is then processed to fibers, filaments, non-wovens, films and/or mouldings. |