The effects of polyether on polyurethane performance: how formulators can make the best choice in low unsaturation polyol ratios to yield optimum urethane performance. (Raw Materials Polyethers).

Adhesives Age,  March, 2003  by Derek Crawford

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IN THE PAST SEVERAL YEARS, low monol polyethers have been developed and offered to the adhesives and sealants formulator. Polyurethane prepolymers were made using polyethers containing various levels of unsaturation, in an effort to determine the effect that monol has on the physical properties of filled and unfilled materials.

Conventional polyerher polyols, hydroxy-functional resins synthesized via the potassium hydroxide (KOH) catalysis of propylene oxide, have been used for decades to produce polyurethane prepolymers in a wide range of applications. From flexible sealants to rigid foams, polyether-based urethanes can be formulated into many of the end products found in the construction ...