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US 11,608,287 B2Granted
Articles comprising crystalline materials and method of making the same
Assignee3M Innovative Properties Company
InventorsAnatoly Z. Rosenflanz, Jason D. Anderson, Noah O. Shanti, Fabian Stolzenburg, Jean A. Tangeman
Life of this patent
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Abstract
Methods for making articles comprising crystalline material. Exemplary articles made by a method described herein include electronics enclosure (e.g., a watch case, cellular phone case, or a tablet case).
Claims20
A method of forming an article comprising:
- providing a preform having a volume and a first shape, the preform comprising nanocrystalline glass-ceramic;
- providing a mold comprising a cavity having a void volume in the range of 70 to 130 percent of the volume of the preform;
- placing at least a portion of the preform within the void volume of the mold;
- and
- heating the preform at sufficient temperature and under sufficient pressure to form an article comprising crystalline material and having a second, different shape,
- wherein at least 90 percent by weight of the nanocrystalline glass-ceramic, based on the total weight of the nanocrystalline glass-ceramic, does not have a Tg.
3 more elements
The method of 1, wherein the mold further comprises at least one cavity port in fluid connection with the cavity.
A method of forming an article comprising:
- providing a preform having a volume and a first shape, the preform comprising nanocrystalline glass-ceramic;
- providing a major surface;
- placing at least a portion of the preform in contact with the major surface;
- and
- heating the preform at sufficient temperature and sufficient pressure to form an article comprising crystalline material and having a second, different shape,
- wherein at least 90 percent by weight of the nanocrystalline glass-ceramic, based on the total weight of the nanocrystalline glass-ceramic, does not have a Tg.
3 more elements
Dependencies are inferred from the claim text.