公开(公告)号：US20210087408A1

公开(公告)日：2021-03-25

申请号：US17111268

申请日：2020-12-03

Applicant: SWIMC LLC

Inventor： Robert W. Sandoval ,  Matthew D. Andersson ,  T. Howard Killilea ,  Mary Jane Hibben ,  Frank Cusimano ,  Tyler Bell ,  Michael C. Wildman

IPC: C09D4/06 ,  C09D7/48 ,  C08F12/08 ,  C08F18/08 ,  C08F20/06 ,  C08F20/18

Abstract: Water-based coating compositions or paint having improved gloss retention, including a latex or water-dispersible polymer, a UV-VIS absorber comprising a substituted benzophenone capable of being a free radical generator, a hindered amine light stabilizer, and optionally a low-VOC coalescent provided in a preferably desired amount. A composition comprising a blend a UV-VIS absorber comprising a substituted benzophenone capable of being a free radical generator, a hindered amine light stabilizer, and a low-VOC coalescent, providing a thermally-stable coalescent that can be used in a paint formulation for gloss retention. Gloss retention of paints containing the UV-VIS absorber and hindered amine light stabilizer being markedly improved over paints that do not have both components present.