Abstract: An adhesion promoter coating composition includes an oligomeric alkylalkoxysiloxane and a compound comprising an electrophile moiety and an alkoxysilyl moiety. The electrophile moiety may contain a sulfide functional group, for example. A dust suppression coating composition includes an acrylic polymer comprising a quaternary ammonium moiety; and an oligomeric alkylalkoxysiloxane. The coating composition may be applied to roofing granules, and/or asphaltic compositions, among other things.

Abstract: An adhesion promoter coating composition includes an oligomeric alkylalkoxysiloxane and a compound comprising an electrophile moiety and an alkoxysilyl moiety. The electrophile moiety may contain a sulfide functional group, for example. A dust suppression coating composition includes an acrylic polymer comprising a quaternary ammonium moiety; and an oligomeric alkylalkoxysiloxane. The coating composition may further include a zirconium salt. The coating composition may be applied to roofing granules, and/or asphaltic compositions, among other things.

Abstract: An adhesion promoter coating composition includes an oligomeric alkylalkoxysiloxane and a compound comprising an electrophile moiety and an alkoxysilyl moiety. The electrophile moiety may contain a sulfide functional group, for example. A dust suppression coating composition includes an acrylic polymer comprising a quaternary ammonium moiety; and an oligomeric alkylalkoxysiloxane. The coating composition may be applied to roofing granules, and/or asphaltic compositions, among other things.

Abstract: A surface having dust particles thereon and a coating on the surface comprising a coating polymer having a Tg less than ?20° C. A method of reducing dust, the method including providing a surface having dust particles thereon and coating the surface with a coating polymer with a Tg less than ?20° C.

Abstract: A surface having dust particles thereon and a coating on the surface comprising a coating polymer having a Tg less than ?20° C. A method of reducing dust, the method including providing a surface having dust particles thereon and coating the surface with a coating polymer with a Tg less than ?20° C.

Abstract: The present application is directed to an article comprising a dusty surface and a coating on the dusty surface comprising a coating polymer having a Tg less ?20° C. and a method of reducing dust. In some embodiments, the polymer has a Tg less than ?30° C., and in specific embodiments, the polymer has a Tg less than ?45° C. The dusty surface may be, for example, crushed stone, coal, iron ore, gravel, sand or other aggregates (e.g. a roofing granule,) or a soil surface. Generally, the coating polymer comprises a polyacrylate, polyurethane, synthetic and natural rubber, silicone and other organic polymers. In specific embodiments, the coating polymer comprises an acrylic emulsion polymer.

Abstract: The present application is directed to an article comprising a dusty surface and a coating on the dusty surface comprising a coating polymer having a Tg less ?20° C. and a method of reducing dust. In some embodiments, the polymer has a Tg less than ?30° C., and in specific embodiments, the polymer has a Tg less than ?45° C. The dusty surface may be, for example, crushed stone, coal, iron ore, gravel, sand or other aggregates (e.g. a roofing granule,) or a soil surface. Generally, the coating polymer comprises a polyacrylate, polyurethane, synthetic and natural rubber, silicone and other organic polymers. In specific embodiments, the coating polymer comprises an acrylic emulsion polymer.

Abstract: A process of producing alpha alumina ceramic abrasive grain by sintering alpha alumina monohydrate is improved by seeding with a crystalline oxide of iron having a particle size of less than 150 nm.