PTG
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【 Product of PTG Plant 】
Polytetramethylene-Ether-Glycol (PTG, 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.
Specification of Polytetramethylene-Ether-Glyol (PTMEG,PTG)
Grade 850 1000 1400 1800 2000 3000
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
Color Max.    50 Max.    50 Max.    50 Max.    50 Max.    50 Max.    50
Acid Number
(mgKOH/g)
Max. 0.05 Max. 0.05 Max. 0.05 Max. 0.05 V Max. 0.05
Water (%) Max. 0.02 Max. 0.02 Max. 0.02 Max. 0.02 Max. 0.02 Max. 0.02
* The above specification is subject to change without any notice.
* Please refer to our Sales Personnel or web-site for latest information.
 
【 Relations between PTG Viscosity and Temperature 】
 
【Flow Sheet of PTG】