Polymer polyols are defined as very fine and stable dispersions of solid polymers (vinylic polymers and copolymers, polyurea, polyurethanes) in liquid polyethers. Currently polymer polyols represent ...

Figure 3.9(a) shows gas chromatograms obtained with reaction products of several polyurethane polyethers. Figure 3.9: Reaction of polyethers with p-toluene sulfonic acid gas chromatography. Gas ...

other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins and other polyesters, in primary forms 575 Other plastics, in primary forms 579 Waste, parings and scrap, of ...

other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins and other polyesters, in primary forms 575 Other plastics, in primary forms 579 Waste, parings and scrap, of ...