Patent ID: 8946377
Filing Date: 2015-02-03
Classification: C08G,Y10S

Abstract:
1. A process for preparing a high-functionality polyetherol comprising reacting by polymerization, other than by ring-opening polymerization of an oxetane, at least one triol or polyol with optionally at least one of a diol, a monool and/or a modifying reagent, as the only reactants, with the aid of an acidic catalyst, wherein the modifying reagent is not the same as said monool, diol, triol and polyol, wherein the triol or polyol is at least one compound selected from the following groups: (1) a group consisting of trimethylolmethane, trimethylolethane, trimethylolpropane (TMP), 1,2,4-butanetriol, tris(hydroxymethyl) isocyanurate, tris(hydroxyethyl) isocyanurate (THEIC), bistrimethylolpropane (di-TMP), pentaerythritol, bispentaerythritol (di-penta) and inositol, and (2) an alkoxylation product containing 1-40 ethylene oxide units per molecule and obtained by reacting any member of (1) with ethylene oxide, wherein the diol has two hydroxyl groups and is at least one compound selected from the following group: ethylene glycol, diethylene glycol, triethylene glycol, 1,2- and 1,3-propanediol, dipropylene glycol, tripropylene glycol, neopentyl glycol, 1,2-, 1,3- and 1,4-butanediol, 1,2-, 1,3- and 1,5-pentanediol, hexanediol, dodecanediol, cyclopentanediol, cyclohexanediol, cyclohexanedimethanol, bis(4-hydroxycyclohexyl)methane, bis(4-hydroxycyclohexyl)ethane, 2,2-bis(4-hydroxycyclohexyl)propane, a dihydroxyl-group containing polyetherpolyol based on ethylene oxide, propylene oxide, butylene oxide or mixtures thereof, and polytetrahydrofuran terminated at each end thereof with a hydroxyl group, and wherein the modifying reagent adds randomly distributed functionalities other than the OH groups to the high-functionality polyetherol and comprises a compound bearing mercapto groups; primary, secondary or tertiary amino groups; three carboxyl groups or esters thereof; sulfonic acid groups or derivatives thereof; phosphonic acid groups or derivatives thereof, silane groups, and siloxane groups.