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Polyurethane waste reprocessing

FIGURE 6.5 Reprocessing of polyurethane waste by thermopressing. (After Muller, P. and Reiss, R., Die Makromol. Chem., Macromol. Symp., 57, 175, 1992. With permission.)... [Pg.721]

Polyurethane materials are extremely versatile in that it is possible to produce a large variety of structures which range in properties from linear and flexible to crosslinked and rigid. The crosslinked PURs are thermosets, which are insoluble and infusible and therefore cannot be reprocessed by extrusion without suffering extensive thermal degradation. At present, the main sources of recyclable waste are flexible PUR foams and automobile waste. Waste and scraps of these materials may consist of 15-25% by weight of total PUR foam production. [Pg.537]

See other pages where Polyurethane waste reprocessing is mentioned: [Pg.1891]    [Pg.404]   
See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.4 , Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.9 , Pg.10 , Pg.11 , Pg.12 , Pg.13 , Pg.14 ]



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