公开(公告)号：US20220403659A1

公开(公告)日：2022-12-22

申请号：US17755296

申请日：2020-11-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Taisiya Skorina ,  Rebecca L. A. Everman ,  Jean A. Tangeman ,  Eric J. Vanbruggen ,  Kenton D. Budd ,  Rachael A. T. Gould ,  Robert P. Brown ,  Lara K. N. Ughetta ,  Jonathan A. Hubin ,  Zachary M. Schaeffer

IPC: E04D7/00

Abstract: A plurality of photocatalytic coated ceramic granules comprising base ceramic granules, each having an outer surface, and a photocatalytic coating disposed on the outer surface. The photocatalytic coating comprising an inorganic binder and a plurality of photocatalytic particles selected from TiO2, ZnO, Ti(OH)4, doped derivatives thereof and combinations thereof. The photocatalytic particles have a surface area per weight of tire particles of no more than 30 square meters per gram (m2/g). The coated ceramic granules have a Total Solar Reflectance of at least 0.7.