The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2018
Filed:
Jun. 08, 2016
Momentive Performance Materials Inc., Waterford, NY (US);
Kipyung Ahn, Solon, OH (US);
Guangjun Xu, San Jose, CA (US);
Martin Panchula, Eastlake, OH (US);
Samuel Conzone, Castleton, NY (US);
Tianjun Rong, Shanghai, CN;
Konstantin S. Zuyev, Plymouth, MN (US);
Yen Zhou, Gates Mills, OH (US);
MOMENTIVE PERFORMANCE MATERIALS, INC., Waterford, NY (US);
Abstract
A high silica glass composition comprising about 92 to about 99.9999 wt. % SiOand from about 0.0001 to about 8 wt. % of at least one dopant selected from AlO, CeO, TiO, LaO, YO, NdO, other rare earth oxides, and mixtures of two or more thereof. The glass composition has a working point temperature ranging from 600 to 2,000° C. These compositions exhibit stability similar to pure fused quartz, but have a moderate working temperature to enable cost effective fabrication of pharmaceutical packages. The glass is particularly useful as a packaging material for pharmaceutical applications, such as, for example pre-filled syringes, ampoules and vials.