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Oligo urea polyols, polyether polyols obtained from these and the use of these polyols in the isocyanate polyaddition process
Oligo urea polyols, polyether polyols obtained from these and the use of these polyols in the isocyanate polyaddition process
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机译:寡聚脲多元醇,由它们制得的聚醚多元醇以及这些多元醇在异氰酸酯加聚方法中的用途
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摘要
The present invention is directed to novel polyhydroxyalkyl oligoureas prepared by condensing urea derivatives with polyamides. The present invention is further directed to polyether polyols prepared by alkoxylating these polyhydroxyalkyl oligoureas. Finally, the present invention is directed to the use of both the polyhydroxyalkyl oligoureas and the polyethers prepared therefrom for use in the production of polyurethanes, particularly rigid foams.
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