公开(公告)号：US20240376321A1

公开(公告)日：2024-11-14

申请号：US18412781

申请日：2024-01-15

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 ,  C08F12/08 ,  C08F18/08 ,  C08F20/06 ,  C08F20/18 ,  C08K5/132 ,  C08K5/3435 ,  C08K5/357 ,  C08L21/02 ,  C09D7/48

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.