| 摘要 |
Polyester polyether polyol obtained by polycondensation of a polyol product reacted with ethylene oxide, a polyacid and/or cyclic acid anhydride, and optionally monoacid, is new, where the polyester polyether polyol comprises at least 90% of primary hydroxyl functions and having a molar mass of 1000-6000 g/mole, and a viscosity at 25[deg] C of 1000-30000 mPas. Polyester polyether polyol obtained by polycondensation of a polyol product reacted with ethylene oxide, a polyacid and/or cyclic acid anhydride, and optionally monoacid, is new, where the polyester polyether polyol comprises at least 90% of primary hydroxyl functions and having a molar mass of 1000-6000 g/mole, and a viscosity at 25[deg] C of 1000-30000 mPas, and has a structure of formula (X-(CH 2) 2-(O-(CH 2) 2) p - 1-O-CH 2-(CH(-O-((CH 2) 2) p - 1-(CH 2) 2-X)) n-CH 2-O-((CH 2) 2-O) p - 1-(CH 2) 2-X) (A). X : R-COO-, which is a monocarboxylic acid, OH or (-OOC-Y1-(C(O)-Z) q=O); p : 1-38; n : 1-4; q : 1-2; and Z : H or A, where Y1(COO-) q + 1 is polyacid and/or cyclic acid anhydride of formula (Y1(COOH) q + 1). Independent claims are included for: (1) polyurethane comprising 5-70% of polyester polyether polyols; and (2) preparing the polyurethane comprising reacting polyester polyether polyols with an isocyanate compound. |
