Patent ID: 7402644
Filing Date: 2008-07-22
Classification: C08G

Abstract:
1. A production process for an alkylene oxide addition product, which comprises the step of carrying out an addition reaction of an alkylene oxide to a hydroxyl-group-containing saturated compound in order to obtain the alkylene oxide addition product; with the production process further comprising: an initial step of causing the alkylene oxide to add by an addition reaction to the hydroxyl-group-containing saturated compound in an amount of not larger than 20 mols on average of the alkylene oxide per 1 mol of the hydroxyl-group-containing saturated compound to thereby obtain an alkylene oxide low-mol-addition product wherein the hydroxyl-group-containing saturated compound has a water content of not more than 6,000 ppm; and a molar-degree-of-polyaddition-adjusting step of causing the alkylene oxide to further add by an addition reaction to the alkylene oxide low-mol-addition product as obtained in the initial step; wherein a part of the entirety of the alkylene oxide low-mol-addition product as obtained in the initial step is used in the molar-degree-of-polyaddition-adjusting step, and where the amount of the alkylene oxide used in the molar-degree-of-polyaddition-adjusting step is not larger than 20 mols on average per 1 mol of the alkylene oxide low-mol-addition product.