Patents

US 10501636 B2: Solar reflective particulates

Granted: 2019-12-10
Filed: 2018-02-12 application 15894650
Type: Utility · 18 claims
Elsewhere: Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗

Abstract

A reflective particulate composition includes a particulate substrate, and an inorganic binder, a pigment, and a hydrophobic coating on the particulate substrate. The composition may have a solar reflectance of 70% or greater. The pigment may include a clay, and the hydrophobic coating may include a (meth)acrylic polymer, a coupling agent, a wax and an antioxidant. A method of making the composition may include mixing the pigment, the inorganic binder, a dispersant and water to form a pigment mixture, adding the particulate substrate to the pigment mixture, heat treating the pigmented particulate, and mixing the pigmented particulate with a hydrophobic coating composition. Alternatively, the method may include first mixing the particulate substrate with one of the inorganic binder or the pigment, and then mixing the resulting composition with the other of the inorganic binder and the pigment, and heat treating the pigmented particulate.

Source: PVGPATDIS, file of 2026-04-10 (ipg191210.xml).

Assignees

Assignee	Type	Place	Also on furp.org	Source
U.S. Silica Company 18 patents	US company or organization	Frederick, MD		PVGPATDIS, file of 2026-04-10

Inventors

Inventor	Place	Patents	Source
Rhonda Marie Jenree	Bath (Berkeley Springs), WV	4	PVGPATDIS, file of 2026-04-10
Rocky Lee Smith	Needmore, PA	8	PVGPATDIS, file of 2026-04-10
David Earl Weller, JR.	Greencastle, PA	9	PVGPATDIS, file of 2026-04-10
Shih-Jen Wu	Cheyenne, WY	3	PVGPATDIS, file of 2026-04-10

CPC categories

Subclass	Category	First group	Source
C09C	Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties ; preparation of carbon black ; ; preparation of inorganic materials which are no single chemical compounds and which are mainly used as pigments or fillers	C09C3/06	PVGPATDIS, file of 2026-04-10
C09D	Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor	C09D5/00	PVGPATDIS, file of 2026-04-10
E04D	Roof coverings; sky-lights; gutters; roof-working tools	E04D7/005	PVGPATDIS, file of 2026-04-10
C08K	Use of inorganic or non-macromolecular organic substances as compounding ingredients	C08K13/06	PVGPATDIS, file of 2026-04-10
Y02A	Technologies for adaptation to climate change	Y02A30/254	PVGPATDIS, file of 2026-04-10
Y02B	Climate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications	Y02B80/00	PVGPATDIS, file of 2026-04-10

Cooperative Patent Classification, as currently assigned (one row per subclass).

Assignments and security interests

Recorded	What	From	To	Reel/frame	Source
2024-07-31	Security interest Security interest Notice of grant of security interest in intellectual property (first lien)	U.S. SILICA COMPANY signed 2024-07-31	WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT ISELIN, NJ	68307/349	PASDL, file of 2026-10-15

Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.

USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.