阅读说明：本技术 制备有机氧基硅烷封端聚合物的方法 (Method for preparing organooxysilane-terminated polymers ) 是由 V·施坦耶克 L·灿德尔 于 2019-12-13 设计创作，主要内容包括：本发明涉及一种制备式(I)Y-[O-C(＝O)-NH-(CR～(1)-2)-b-SiR-a(OR～(2))-(3-a)]-x(I)的有机氧基硅烷封端的聚合物(SP)的方法,其特征在于,在第1方法步骤中,使至少一种式(II)Y-[OH]-x(II)的聚合物(OHP)与至少一种式(III)O＝C＝N-(CR～(1)-2)-b-SiR-a(OR～(2))-(3-)(III)的异氰酸酯官能硅烷(IS)反应,条件是异氰酸酯官能硅烷(IS)的使用量使得相对于化合物(OHP)中的每个羟基,在硅烷(IS)中存在至少1.05个异氰酸酯基团,随后在第2方法步骤中,使硅烷(IS)的未反应异氰酸酯基团在第1方法步骤中获得的反应混合物中与至少一种式(IV)R～(3)OH(IV)的醇(A)反应,并且随后在第3方法步骤中,将第2方法步骤中获得的反应混合物通过蒸发单元(VD),在该蒸发单元中,将层厚不超过5cm的反应混合物暴露于至多80毫巴的压力和至多200℃的温度,其中将式(V)R～(3)O-C(＝O)-NH-(CR～(1)-2)-b-SiR-a(OR～(2))-(3-a)(V)的在第二方法步骤中形成的氨基甲酸根合硅烷(CS)至少部分地蒸发和去除,其中所有基团和指数具有权利要求1中所述的定义。本发明还涉及所述聚合物用于制备粘合剂和密封剂的用途。(The invention relates to a process for the preparation of Y- [ O-C (═ O) -NH- (CR) of formula (I) 1 2 ) b ‑SiR a (OR 2 ) 3‑a ] x (I) Is characterized in that, in a step 1, at least one Y- [ OH ] of the formula (II)] x (II) the polymer (OHP) is reacted with at least one compound of formula (III) O ═ C ═ N- (CR) 1 2 ) b ‑SiR a (OR 2 ) 3‑ (III) with the proviso that the isocyanate-functional silane (IS) IS used in such an amount that at least 1.05 isocyanate groups are present in the silane (IS) per hydroxyl group in the compound (OHP), and subsequently in a2 nd process step, the unreacted isocyanate groups of the silane (IS) are subjected to the reaction obtained in the 1 st process stepIn admixture with at least one compound of formula (IV) R 3 OH (IV) and subsequently in a3 rd method step, the reaction mixture obtained in the 2 nd method step is passed through an evaporation unit (VD) in which the reaction mixture having a layer thickness of not more than 5cm is exposed to a pressure of at most 80 mbar and a temperature of at most 200 ℃, wherein R of the formula (V) 3 O‑C(＝O)‑NH‑(CR 1 2 ) b ‑SiR a (OR 2 ) 3‑a (V) the Carbamatosilane (CS) formed in the second process step is at least partially evaporated and removed, wherein all radicals and indices have the definitions stated in claim 1. The invention also relates to the use of said polymers for producing adhesives and sealants.)