Patent ID: 8623933
Filing Date: 2014-01-07
Classification: C08G

Abstract:
1. A process for producing a polyether polyol (A) comprising reacting the following phenol component, the following aldehyde component and the following alkanolamine component thereby forming a reaction product, and reacting an alkylene oxide with the reaction product, wherein the aldehyde component is used in an amount of at least 0.3 mol and less than 0.8 mol, and the alkanolamine component is used in an amount of at least 1.5 mol and at most 3.5 mol, in relation to 1 mol of the phenol component: Phenol component: at least one member selected from the group consisting of phenol and phenol derivatives having a hydrogen atom at one or more ortho-positions to the phenolic hydroxyl group; Aldehyde component: at least one member selected from the group consisting of formaldehyde and acetoaldehyde; Alkanolamine component: at least one member selected from the group consisting of monoethanolamine, diethanolamine and 1-amino-2-propanol.