| 摘要 |
A novel polyether containing urea-aldehyde resin useful in plastics, sealants, molds, foams and coatings. The novel composition comprises the condensation product of a ureido-terminated polyoxyalkylene and an aldehyde. The ureido terminated polyoxyalkylene compound is prepared by reacting a primary amine terminated polyoxyalkylene with urea at temperatures in the range of about 120 DEG C to about 160 DEG C in a molar ratio of about 1 molecule of urea for each primary amino group.
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