PTG
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【Applications for PTMEG,PTG
 
Description:
 Polytetramethylene-Ether-Glycol(PTMEG,PTG) is a regularly linear polyether. It has excellent features in elasticity, low-temperature property and resistance-to-hydrolysis. The main applications are spandex, elastomers, artificial and synthesized leathers, paints and coating materials.
 
Specifications a of Polytetramethylene-Ether-Glycol(PTMEG,PTG)
Grade 850 1000 1400 1800 2000 3000
Hydroxyl Number
(OH)(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 Max.0.05 Max.0.05
Water
(%)
Max. 0.02 Max. 0.02 Max. 0.02 Max. 0.02 Max. 0.02 Max. 0.02
 
Storage and Handling
 PTG is hygroscopic and needs to be protected from moisture and air. A dry nitrogen blanket should be applied to open containers before resealing. Always refer to the Material Safety Data Sheet (MSDS) for detailed information on handling and disposal.