Structural member for eyeglass, eyeglass frame comprising the structural member, and processes for production of the structural member and the eyeglass frame
US7988281B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 12, 2006 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | May 23, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are: a structural member for use in an eyeglass which has a super elastic property and shape memory property while retaining an excellent biocompatibility in addition to the fact that it is N-free, and which also has an excellent cold workability; an eyeglass frame containing the structural member; and a process for producing the structural member or eyeglass frame. A structural member for an eyeglass containing a Ti—Nb—Zr alloy which comprises (A) 40 to 75% by weight of Ti, (B) 18 to 30% by weight of Nb, (C) 10 to 30% by weight of Zr and (D) 0.2 to 3.7% by weight of at least one additive metal element selected from the group consisting of Al, In and Ga.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.