| 摘要 |
Disclosed herein are free flowing coated particles and low temperature methods of making same. Each particle has a curable coating disposed upon a substrate. The substrate is a particulate substrate including an inorganic material, a particulate substrate including an organic material, a composite substantially homogeneous formed particle including a first portion of an at least partly cured binder and filler particles, or a hybrid particle having an inorganic particle as a core and a composite coating including at least partially cured resin and filler. The curable coating includes a continuous phase including a curable liquid resin and reactive powder particles embedded or adhered to the continuous phase. The reactive powder particles typically include one or more of a resole phenolic-formaldehyde resin, a novolak phenolic-formaldehyde resin, a polyester resin, an acrylic polymer resin, a urethane resin or an epoxy resin. A method including applying a coating including the continuous phase including the curable resin and reactive or non-reactive powder particles embedded or adhered to the continuous phase. |
| 主权项 |
1. Free flowing coated particles having a particle size range of about 6 mesh to about 200 mesh,
each particle comprising: a substrate selected from the group consisting of:
a particulate substrate comprising an inorganic material and optionally an at least partially cured coating,a particulate substrate comprising an organic material and optionally an at least partially cured coating,a composite particle comprising a substantially homogeneous formed particle comprising a first portion of a binder and filler particles dispersed throughout said first portion of binder, wherein said first portion is at least partly cured, wherein the particle size of the filler particles ranges from about 0.5 to about 60 μm; anda hybrid particle comprising a composite layer disposed on an inorganic particulate core, the composite layer comprising an at least partially cured organic coating and filler particles, wherein the particle size of the filler particles ranges from about 0.5 to about 60 μm; and a coating disposed upon the substrate, the coating comprising a continuous phase comprising a curable liquid resin and a reactive powder embedded or adhered to the continuous phase, wherein the curable liquid resin comprises at least one member selected from the group consisting of resole phenolic-formaldehyde resins, polyester resins, acrylic polymer resins, urethane resins, epoxy resins, melamine resins and anhydride resins, and wherein the reactive powder comprises at least one member selected from the group consisting of resole phenolic-formaldehyde resins, novolak phenolic-formaldehyde resins, polyester resins, acrylic polymer resins, urethane resins and epoxy resins, wherein the reactive powder is reactive with the curable liquid. |
