公开(公告)号：US20240052215A1

公开(公告)日：2024-02-15

申请号：US17762661

申请日：2021-09-14

申请人： JIANGSU JINGHONG NEW MATERIALS TECHNOLOGY CO., LTD.

发明人： Dawei SUN ,  Zhijian DU ,  Zhuang DING ,  Quanwei GAO

IPC分类号： C09J151/00 ,  C08F2/38 ,  C08F287/00 ,  C08F2/22

CPC分类号： C09J151/006 ,  C08F2/38 ,  C08F287/00 ,  C08F2/22 ,  C08F2438/03

摘要： A method for preparing an acrylate laminating adhesive by soap-free emulsion polymerization, and an acrylate laminating adhesive prepared by soap-free emulsion polymerization. In the method, an acrylate block oligomer with emulsifiability is synthesized by using a RAFT active radical polymerization process, and an acrylate monomer is emulsified by using the acrylate block oligomer for a semi-continuous emulsion polymerization, which overcomes a defect that traditional small molecule emulsifiers tend to migrate to a surface of an adhesive film to form a weak interface layer, resulting in a decreased bonding strength, a poor water resistance and the like. Further, in the disclosure, the use of n-pentanol as a chain transfer agent could not only reduce the molecular weight of polymer, improving fluidity and laminating uniformity of the adhesive, but also reduce the surface tension of the emulsion, improving coating wettability and levelling properties of the acrylate laminating adhesive.