Imerys Filtration Minerals, Inc.

Michael Greene

Bo Wang

Rajendra Kashinath Singh

Roger N Rothon

Jie Lu

Nigel Julian Keith Danvers

Qingchun Hu

Roger Norman Rothon

Natural amorphous silica filler products featuring high brightness, low oil absorption, fine particle size, and low crystalline silica content are described. Methods for making, using, and measuring the properties of the natural amorphous silica filler products are also described. The natural amorphous silica filler products described herein may be useful in a variety of products including, but not limited to, polymers, sealants, paints, caulks, latex, architectural coatings, industrial coatings, pozzolan, glass catalysts, ceramic glazes, and anti-blocking applications.

Natural amorphous silica filler products

Particulate mineral materials comprising at least one coating comprising at least one metal compound are disclosed. In one embodiment, the at least one metal compound is a metal silicate compound. In another embodiment, the at least one metal compound is a metal oxide compound. In one embodiment, the particulate mineral material is perlite. In another embodiment, the particulate mineral material is perlite microspheres. In a further embodiment, the particulate mineral material is diatomite. Methods of making particulate mineral materials coated with at least one metal compound are also disclosed. In one embodiment, the at least one metal compound may be injected into a perlite expander to form a metal compound coated perlite material. In another embodiment, the at least one metal compound may be applied through a low temperature coating process to the at least one particulate mineral material. Uses for metal compound coated particulate mineral materials are also disclosed.

Metal compound coated particulate mineral materials, methods of making them and uses thereof

The present invention describes polymer compositions comprising fluoroelastomer and expanded perlite and uses thereof.

Polymer compositions comprising fluoro elastomers and expanded perlite

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Santa Barbara, CA, United States of America

Michael Greene