Product comprising ultrafine natural glass
AssigneeImerys Filtration Minerals, Inc.
InventorBo Wang
Life of this patent
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Abstract
A product including ultrafine natural glass, methods of producing the ultrafine natural glass, and methods of use thereof are provided. The product may have, for example, a small top cut (d99) particle size of, for example, less than 12 microns. The product may also have high blue light brightness higher than, for example, 69, and/or low oil absorption, for example, less than 100 percent in volume. The product may be used in a variety of applications, such as, for example, anti-block filler in plastic films and/or reinforcement filler in polymers.
Claims11
A product comprising ultrafine natural glass having a top cut (d99) particle size of less than 12 microns, wherein the ultrafine natural glass comprises unexpanded perlite ore, and wherein the unexpanded perlite ore comprises from 2 wt % to 10 wt % chemically-bonded water.
Dependencies are inferred from the claim text.