3M Innovative Properties Company

Rebecca L Everman

Kenton D Budd

Craig W Lindsay

Jean A Tangeman

Feng Bai

Haeen Sykora

Rachael A T Gould

Jamieson C Keister

Robert P Brown

Kathleen K Reynolds

A granule and building material including a granule having an inner zone and an outer zone that at least partially surrounds the inner zone and that comprises greater than 10% of the total volume of the granule is provided.

Glass granule having a zoned structure

An uncolored roofing granule including a low solar absorption base and a low solar absorption and solar opaque coating presented on the base, the coating including a binder, a pigment, wherein the binder includes a curable component and a non-clay, thermally reactive curing agent.

High solar-reflectivity roofing granules utilizing low absorption components

A roofing granule includes a glass substrate and a plurality of pores in the glass substrate such that the roofing granule has a minimum total solar reflectance of at least 50%.

Porous glass roofing granules

The present application is directed to a coating composition comprising a ceramic binder and inorganic copper compound particles. Generally, the inorganic copper compound particles have a median particle size of less than 5 micrometers. In some embodiments, the particles have a median particle size of greater than 1 micrometer. The inorganic copper compound particles may be non-photocatalytic. The coating may also be placed on a structural layer.

Growing community of inventors

Saint Paul, MN, United States of America

Rebecca L Everman