发明授权
US08993668B2 Polyvinyl ester dispersions, process for preparation thereof and use thereof 有权
聚乙烯酯分散体,其制备方法和用途

Polyvinyl ester dispersions, process for preparation thereof and use thereof
摘要:
What are described are polyvinyl ester dispersions which are prepared in a multistage process and have a low content of polymerized acids or acid anhydrides. They can be obtained by a multistage process in which a polyvinyl ester dispersion is obtained in a first stage, monomers in dissolved or pure form are added to the reaction mixture in a second stage and then the polymerization is started again. The polymer dispersions obtained in this way are notable for a low coagulum content and for increased tensile strengths of the films formed therefrom.
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