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Thermoplastic polyurethanes high cost

High molecular weight PTHF has excellent elastomeric properties but its price is four to five times higher than that of usual rubbers. However, low molecular weight glycols, which are easily prepared from THF and are very useful for the preparation of polyurethanes and polyester thermoplastic elastomers, has been commercially developed inspite of these high costs. [Pg.723]

TPU can be blended with PVC combining the toughness and abrasion resistance of the TPU with the stiffness and high modulus of PVC together with cost reduction of TPU. Chlorinated polyethylene can also be used as a blend with TPU or with TPU plus PVC or with polyethylene in the latter case the chlorinated polyethylene acts as a carrier for the very incompatible polyethylene. Styrene-acrylonitrile copolymers (SAN) and the rubber-modified versions, ABS, have also been blended with thermoplastic polyurethanes. Again the stiffness and initial modulus are improved without much sacrifice of the low-temperature properties. [Pg.397]

See other pages where Thermoplastic polyurethanes high cost is mentioned: [Pg.879]    [Pg.142]    [Pg.879]    [Pg.142]    [Pg.241]    [Pg.345]    [Pg.86]    [Pg.794]    [Pg.345]    [Pg.455]    [Pg.5153]    [Pg.879]    [Pg.380]    [Pg.663]    [Pg.46]    [Pg.757]    [Pg.342]    [Pg.329]    [Pg.880]    [Pg.149]    [Pg.212]    [Pg.50]    [Pg.51]    [Pg.329]    [Pg.7]    [Pg.244]    [Pg.880]    [Pg.352]    [Pg.248]    [Pg.426]    [Pg.220]    [Pg.136]    [Pg.89]    [Pg.94]    [Pg.21]    [Pg.12]    [Pg.880]    [Pg.294]    [Pg.89]    [Pg.94]    [Pg.89]    [Pg.94]    [Pg.175]    [Pg.188]    [Pg.522]    [Pg.220]    [Pg.752]    [Pg.60]    [Pg.372]   
See also in sourсe #XX -- [ Pg.243 ]



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