[EN] PREPARATION OF A CURED POLYMER COMPRISING URETHANE GROUPS AND SILICON ATOMS<br/>[FR] PRÉPARATION D'UN POLYMÈRE DURCI COMPRENANT DES GROUPES URÉTHANE ET DES ATOMES DE SILICIUM
申请人:BASF SE
公开号:WO2020161281A1
公开(公告)日:2020-08-13
Provided is a process for the preparation of a cross-linked polymer comprising urethane groups and silicon atoms, wherein a) a compound A) with a five-membered cyclic monothiocarbonate group and a compound B) with an amino group, selected from primary or secondary amino groups or blocked amino groups, and optionally a compound C) with at least one functional group that reacts with a group -SH are used as starting materials, whereby one of said compounds comprises a silicon- functional group, and wherein compounds A), B) and optionally C) are processed, for example, as follows by b1) reacting compounds A) and B) and optionally C) under exclusion of water to obtain a polymer with curable silicon-functional groups and b2) applying said polymer to a surface, gap or a three-dimensional template and curing the silicon-functional groups with ambient water. The polymer comprises 0.001 to 0.3 mol of silicon per 100 g of the polymer.
提供了一种制备含有脲基团和硅原子的交联聚合物的过程,其中a)使用具有五元环单硫代碳酸酯基团的化合物A)和具有氨基的化合物B),所述氨基被选择为主要或次要氨基或被阻断的氨基,以及可选地使用具有至少一个与-SH基团反应的官能团的化合物C)作为起始材料,其中所述化合物中的一个包括硅官能团,化合物A)、B)和可选的C)被处理,例如,通过b1)在排除水的情况下使化合物A)、B)和可选的C)发生反应以获得具有可固化硅官能团的聚合物,b2)将所述聚合物应用于表面、间隙或三维模板,并用周围的水固化硅官能团。所述聚合物中每100克聚合物含有0.001至0.3摩尔的硅。