申请人:SARTOMER COMPANY, INC.
公开号:EP0534847A1
公开(公告)日:1993-03-31
Free radical-curable compositions comprising a plastisol component and a copolymer containing free anhydride functionality and, optionally, other reactive diluents are provided. In particular, curable compositions employing a plastisol, preferably a polyvinyl chloride - containing plastisol, and a low molecular weight crosslinking copolymer component having free anhydride functionality and which is a partial esterification product of a terminally ethylenically unsaturated compound and a polymerizable maleic anhydride are provided. The compositions of the invention yield improved adhesives, sealants, coatings, and insulators for a wide variety of substrates and may be employed in a variety of coating and castings. Processes for preparing cured plastisol compositions from the disclosed free radical-curable compositions are also provided.
本发明提供了自由基固化组合物,该组合物由塑溶胶组分和含有游离酸酐官能团的共聚物以及可选的其他反应性稀释剂组成。特别是提供了采用塑溶胶(最好是含有聚氯乙烯的塑溶胶)和具有游离酸酐官能团的低分子量交联共聚物组分的可固化组合物,后者是烷基乙烯基不饱和化合物和可聚合马来酸酐的部分酯化产物。本发明的组合物可改善粘合剂、密封剂、涂层和绝缘体的性能,适用于各种基材,并可用于各种涂层和铸件。本发明还提供了利用所公开的自由基固化组合物制备固化增塑溶胶组合物的工艺。