| http://www.w3.org/ns/prov#value | - For instance, polyalkylene ether polyol of average molecular weight of 300 to 10,000 obtained by adding alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide and the like to polyhydroxy alcohol such as ethylene glycol, propylene glycol, glycerol, pentaerythritol, sorbitol, sucrose and the like; polytetramethylene ether glycol of average molecular weight of 600 to 10,000 obtained b
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