Improved operating time to open walk time ratio by adding phenolic catalyst to polyaspartic floor formulations

The present invention provides a polyaspartic acid composition comprising the reaction product of a polyamine and a Michael addition acceptor reacted in the presence of a catalyst comprising a phenolic compound, with the proviso that the phenolic compound is not a phenol substituted in both ortho-positions of oxygen with a tert-butyl group. Suitable phenolic compounds include phenols, phenolic aldehyde, alkylphenols, benzenediol, cashew nut oil, and combinations thereof. Coatings, adhesives, sealants, composites, casting compounds, and films comprising the polyurea compositions can be prepared by reacting polyisocyanates with the polyaspartic acid compositions of the invention. In particular, compared with existing floor coatings, the floor coating prepared with the polyaspartic acid composition of the present invention has a prolonged operating time and a short open walking time. 本发明提供了一种聚天冬氨酸类组合物，其包含在催化剂的存在下反应的多胺和迈克尔加成受体的反应产物，所述催化剂包含酚类化合物，条件是所述酚类化合物不是在氧的两个邻位均被叔丁基基团取代的酚。合适的酚类化合物包括酚、酚醛、烷基酚、苯二醇、腰果油及其组合。包含聚脲组合物