Lithium silicate glasses or glass ceramics, method for production thereof and use thereof
US-2015376053-A1 · Dec 31, 2015 · US
Lithium disilicate glass-ceramic, method for production thereof and use thereof
US10219879B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10219879-B2 |
| Application number | US-201414274235-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2014 |
| Priority date | Dec 23, 2009 |
| Publication date | Mar 5, 2019 |
| Grant date | Mar 5, 2019 |
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Abstract
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The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
First claim
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We claim: 1. A lithium silicate glass ceramic comprising at least 10 wt. % ZrO 2 and having a main crystal phase, wherein said main crystal phase is selected from the group consisting of lithium metasilicate crystal and lithium disilicate crystal. 2. The lithium silicate glass ceramic of claim 1 , wherein the lithium silicate glass ceramic is present in the form of a dental restoration. 3. The lithium silicate glass ceramic of claim 1 , wherein the lithium silicate glass ceramic is in the form of an inlay, an onlay, a bridge, a pin construction, a veneer, or a crown.
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- What does patent US10219879B2 cover?
- The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according …
- Who is the assignee on this patent?
- Fraunhofer Ges Forschung, Vita Zahnfabrik H Rauter Gmbh & Co Kg, Degudent Gmbh
- What technology area does this patent fall under?
- Primary CPC classification A61K6/818. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 05 2019 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).