Polytetramethylene-Ether-Glycol
Specifications of Polytetramethylene-Ether-Glycol (PTMEG)
Polytetramethylene-Ether-Glycol (PTMEG) is produced by the acid catalyzed
polymerization of THF. It is a regularly linear Polyether Polyol and has excellent features
in elasticity, low-temperature property and resistance-to-hydrolysis
Grade
850
1000
1400
1800
2000
3000
Water
0.02 Max
0.02 Max
0.02 Max
0.02 Max
0.02 Max
0.02 Max
Color
50 Max.
50 Max.
50 Max.
50 Max.
50 Max.
50 Max.
Acid Number
mgKOH/g
0.05 Max
0.05 Max
0.05 Max
0.05 Max
0.05 Max
0.05 Max
Hydroxyl Number
mgKOH/g
126~140
107~117
77~84
60~65
53~59
35~39
Molecular Weight
801~890
959~1049
1336~1457
1726~1870
1901~2117
2877~3206