| http://www.w3.org/ns/prov#value | - The polyol intermediate is generally a liquid polyether polyol or a polyester polyol or combinations thereof. [0042] Polyether polyols that are use to produce the polyurethanes are generally made by reacting an alkylene oxide, such as propylene oxide, with a strong base such as potassium hydroxide, optionally in the presence of water, glycols and the like.
|
