PolyUrethanes Recycle and Recovery Council.
Recent tests by the PolyUrethanes Recycle & Recovery Council
(PURRC) indicate that it may be economically feasible, as well as
technically possible, to recycle reground flexible polyurethane foam by
adding it to the production of flexible polyurethane slabstock foam.
Pilot scale trial runs found that the addition of reground flexible foam
has only minimal effect on the processing and physical properties of the
resulting flexible polyurethane foam. "While additional
investigations are called for, and full-scale commercial runs must be
made before the true potential of regrind addition is understood, it
appears that adding up to 20% reground flexible polyurethane foam to the
production of slabstock foam represents a viable method of recycling
reground flexible polyurethane foam," said John Quinlan of Arco
Chemical and PURRC Flexible Foam Task Group chairman. As a next step,
PURRC plans to conduct additional testing on higher density foams.
Alternates to cryogenic grinding methods also will be investigated.