Filter for capturing minute substance, glass substrate for observing minute substance, minute substance observation device, minute substance capturing method, and minute substance observation method
US-2017348647-A1 · Dec 7, 2017 · US
Glass granule having a zoned structure
US11414342B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11414342-B2 |
| Application number | US-201314426183-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2013 |
| Priority date | Sep 11, 2012 |
| Publication date | Aug 16, 2022 |
| Grant date | Aug 16, 2022 |
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- Title
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- Abstract
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Abstract
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A granule and building material including a granule having an inner zone and an outer zone that at least partially surrounds the inner zone and that comprises greater than 10% of the total volume of the granule is provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. A building material, comprising: a granule having an inner zone and outer zone at least partially surrounding the inner zone, wherein the inner zone and outer zone each comprise greater than 30% of a total volume of the granule and the granule comprises greater than 60% by volume of a glass; wherein the outer zone has greater porosity than the inner zone. 2. The building material of claim 1 , wherein the outer zone comprises greater than 50% by volume of a glass. 3. The building material of claim 1 , wherein the inner zone comprises greater than 50% by volume of a glass. 4. The building material of claim 1 , wherein the outer zone has an average pore volume between 2% and 15%. 5. The building material of claim 1 , wherein the inner zone and outer zone are formed from the same material. 6. The building material of claim 1 , wherein the granule is a roofing granule. 7. The building material of claim 1 , wherein the granule comprises an intermediate zone at least partially between the inner zone and outer zone. 8. The building material of claim 1 , wherein the granule comprises a core zone, and the inner zone and outer zone surround the core zone. 9. The building material of claim 1 , wherein the outer zone comprises an exterior surface of the granule.
Assignees
Inventors
Classifications
Particulate matter [e.g., sphere, flake, etc.] · CPC title
Roofing elements comprising two or more layers, e.g. for insulation · CPC title
by superficial sintering or bonding of particulate matter · CPC title
- C03C11/00Primary
Multi-cellular glass {; Porous or hollow glass or glass particles} · CPC title
Silicates, e.g. glass · CPC title
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Frequently asked questions
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- What does patent US11414342B2 cover?
- A granule and building material including a granule having an inner zone and an outer zone that at least partially surrounds the inner zone and that comprises greater than 10% of the total volume of the granule is provided.
- Who is the assignee on this patent?
- 3M Innovative Properties Co
- What technology area does this patent fall under?
- Primary CPC classification C03C11/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 16 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).