Patent ID: 8148463
Filing Date: 2012-04-03
Classification: B22C,C08G,C08L,C09J

Abstract:
1. A binder composition produced by addition of polyalkylene glycol, comprising three or more alkylene glycol units, to an alkaline aqueous mixture comprising a base resol phenol-aldehyde resin and an oxyanion, wherein the oxyanion is capable of forming a stable complex with the base resin, wherein the amount of alkali present in the binder composition is sufficient to substantially prevent stable complex formation between the resin present in the binder composition and the oxyanion, wherein the polyalkylene glycol comprises polyethylene glycol having a molecular weight from 200 to 2000 in an amount that is miscible in the alkaline aqueous mixture and in an amount from 1% to 20% by weight based on the total weight of the binder composition, and wherein the binder composition has a molar ratio of alkali, expressed as hydroxyl ions, to phenol of from 1.0:1 to 2.5:1.